interiores butterfly_valves_rev.11_ 2013.indd

Butterfl y Valveswww.comeval.es

Unival®

www.comeval.es

Unival®Excelling the best.

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IndexGeneral Design ConsiderationsValve Coding SystemEngineering & Performance Data for Unival Concentric Valves Working Parameters & Chemical Resistance Flow Data Torque ValuesConcentric Butterfl y Valves Attributes of Design - VF700/750/7U0Wafer Style Concentric Butterfl y Valves Parts and materials - VF700/750/7U0 Dimensions & Design Standards - VF700 DN32-600 Dimensions & Design Standards - VF700 DN700-1200Lug Style Concentric Butterfl y Valves Dimensions & Design Standards - VF750U Style Concentric Butterfl y Valves Dimensions & Design Standards - VF7U0Double Flange Concentric Butterfl y Valves Attributes of Design - VF790 Parts and Materials - VF790 Dimensions & Design Standards - VF790Wafer Split Body PTFE Lined Concentric Butterfl y Valves Attributes of Design - VF775 Parts and Materials - VF775 Dimensions & Design Standards - VF775Actuation and Accesories on Manual Butterfl y ValvesPneumatic Actuators CMVL T Series Attributes of Design General Design Considerations Bi-Directional Patented Travel Stop Illustration Special Coatings Dimensions Spring Return Actuator Sizing Parts and Materials Options and AccessoriesAssembly Dimensions of Pneumatic Actuators on Wafer Style Concentric Butterfl y Valves - VF700 on Lug Style Concentric Butterfl y Valves - VF750Multi-Voltage Electric Actuators Attributes of Design Main Data Options and AccessoriesAssembly Dimensions of Electric Actuators on Wafer Style Concentric Butterfl y Valves - VF700 on Lug Style Concentric Butterfl y Valves - VF750Wafer & Lug Concentric Butterfl y Valves Assembly SetInstallation, Start-Up and MaintenanceMaterial Selection GuidanceMarketing Tools Available to DistributorsGet in touch

4-56

7- 89

10

11

121314

15

16

171819

20212223

2425262728293031

3233

343536

3738

3940-4546-52

5354

3

Unival® Butterfl y Valves Index

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A butterfl y valve is a type of fl ow control device, typically used to regulate a fl uid fl owing through a section of pipe. A fl at circular plate (disc) is positioned in the centre of the pipe. The plate has a rod (shaft) through it connected to an actuator on the outside of the valve. Rotating the actuator turns the plate either parallel or perpendicular to the fl ow. Unlike a ball valve, the plate is always present within the fl ow, therefore a pressure drop is always induced in the fl ow regardless of valve position.

A butterfl y valve is from a family of valves called quarter turn valves. The “butterfl y” is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows unrestricted passage. The valve may also be opened incrementally to regulate fl ow thanks to the gradual interlocking notch.

Butterfl y valves are of simple design, of light weight and volume and very eff ective on isolating lines for its quick and safe operation. Most of butterfl y valves design are fl angeless for installation between counter fl anges what saves space, costs and maintenance.

There are two kind of fl angeless butterfl y valves:

Wafer Style Concentric Butterfl y Valves: Wafer style is the more common one and is the least expensive one. The Wafer Style Concentric Butterfl y valve is just about the standard. It is so common that no one even bothers to use the word “wafer” when ordering a butterfl y valve. They take it for granted that if they order a butterfl y valve, they will get a wafer style one. Wafer butterfl y valves are installed between two fl anges using bolts or studs and nuts. This type of installation, of course, makes it impossible to disconnect just one side of the piping system from the valve. That is where the lug style valve comes in.

Lug Style Butterfl y Valves: Lug style valves are provided with tapered holes to fi x threaded bolts in. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two fl anges using a separate set of bolts for each fl ange. This set-up permits either side of the piping system to be dis-connected without distributing the other side.Lug Style Butterfl y Valves are used in dead end service and generally have a reduced pressure rating.

Valves can also be of dual fl anged design; provided with integral fl anges that are ready to be installed between fl anges of the same standard. These are more bulky valves and usually required for large sizes and other styles of performance by the position of the shaft. (see next paragraph).

Other kind of valves by its nature of shaft design are as follows:

Concentric Design: This is the most common and simple design. The valve shaft is concentric to the disc. It is normally a resilient seated valve. Rotating the handle turns the plate either parallel or perpendicular to the fl ow of water, shutting off the fl ow

Double Eccentric Design: This design features a slight off set in the way the disc is positioned, which increa-ses the valve’s sealing ability and decreases its tendency to wear. It is normally used for throttling functions, larger sizes and / or metal seated valves.

Triple Off set Design: This design is the one off ering the highest degree of performance. The shaft is totally off set from the central axis thus increasing the ability of the valve disc to close tightly at even high pressure. These val-ves are usually metal seated thus being used for high temperature too. These valves are usually operated by worm gear to achieve a slow closing.

Unival® Butterfl y Valves General Design Considerations

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There are some common parts innate to butterfl y valves regardless of its design, brand or materials of construction as follows:

A Body; this is the main framework of the valve which houses the moving components of the same. It is made of metal and can be of diverse styles as mentioned above.B Liner; it is a rubber or plastic circular seat inserted into the body inner part and can be either vulcanised or made of an insert. The vulcanised type cannot be removed once assembled whilst the insert can be replaced at any time. The liner provides the required tightness to the valve.C Shaft; it is the rod that drives the disc by rotation. It can be made of two piece rod or a single piece rod depending the way to assemble and disassemble it.D Disc; It is the plate which is guided by the shaft and blocks or allows the fl uid to pass. It is the closing element of the valve.E Packing; set of soft goods that provides the atmospheric integrity to the valve. Usually are provided with a shaft packing in the upper part and the bottom bush in the lower part.F Notch plate; it is the metal position indicator and gear locking fi x on top of the valve neck where the actuator is supported. The function is locking the actuator in intermediate positions if needed.G Actuation; it is the component which actions the valve, it may be a hand lever; usually used for quick action and standard sizes; a worm gear box; used for slower action and large valve sizes; pneumatic, electric or hydraulic ac-tuators; for remote and continuous operations.H Name Plate; not innate to the valve design but of equal importance as it is providing the user the design and working parameters of the valve. It is normally affi xed onto the valve front neck by riveted aluminium plate.

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Unival® Butterfl y Valves General Design Considerations

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Unival® Butterfl y Valves Coding System

BUTTERFLY VALVES BASED ON BODY MATERIAL JL1040 (GG25)

BUTTERFLY VALVES BASED ON OTHER MATERIAL BODY

UNIVAL CODING SYSTEMLast Update: 26/04/2012

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NBR Butadiene Acrylonitrile (-20ºC) -10ºC ... 75ºC (80ºC) Lubricating oil, cutting oils, fuel oils, animal and vegetable oils, aviation kerosen, LPG, oily air. Generally resistant to oils and solvents. Limited resistance to ozone and wheather.

EPDM Ethylene Propylene Diene (-20ºC) -5ºC ... 110ºC (130ºC) Salts in water, diluted acids, alkaline solutions, ester, ketones, alcohols, glycols, hot water, intermittent steam, ste-rilisation Good resistance to ozone and wheather. It is attacked by hydrocarbon solutions, chlorinated hydrocarbons and other petroleum based oils.

Viton (FPM) Vinylidenefl uoride-hexafl uoro-propyleneco-polymer (-20ºC) -10ºC ... 150ºC (180º) Strong and weak mineral acids, aliphatic hydrocarbons, chlorine gas, oils, aliphatic acids, phosporic acids, ozone, certain aromatic solvents Not suitable for hot water, steam and dry heat.

Hypalon (CSM) Chlorosulfonated polyethylene (-20ºC) -10ºC ... 110ºC (130ºC)Good chlorine and weather resistance. Low resistance to oil and fats

Silicone (-40ºC) -20ºC ... 170ºC (190ºC)Good wheather resistance. Recommended for hot air applications. Not resistant to mineral oils. Moderate mecha-nical properties.

PTFE PTFE/EPDM (-20ºC) -5ºC ... 110ºC (120ºC) - PTFE/NBR (-20ºC) -10ºC ... 80ºC (90ºC) Excellent resistance to chemicals or biopharmaceuticals, strong acids and solvents, alkalies and salts in water. Ex-cellent resistance to weather.

FEP -20ºC ... 120ºC (130ºC) Similar properties to PTFE but more translucent and with lower porosity, so most suitable for concentrated mineral acids, aromatic, aliphatic and chlorinated solvents.

PFA -20ºC ... 180ºC (190ºC)Similar to FEP but with smoother surface texture and for higher continuos service temperatures.

Unival® Butterfl y Valves Engineering & Performance - Data for Unival Concentric ValvesWorking Parameters & Chemical Resistance

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Brief Peak Temperature Working Temperature

Temperature ranges given just for reference.Body pressure-temperature rating also to be considered for valve selection.Please consult our Technical Department for a particular application.

PN16

PN10

P(bar)

T(ºC)Limit for Cast Iron and Ductile Iron

NBR

EPDM

VITON

HYPALON

SILICONE

PTFE / EPDM

PTFE / NBR

FEP

PFA

Unival® Butterfl y Valves Engineering & Performance - Data for Unival Concentric ValvesWorking Parameters & Chemical Resistance

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Disc Opening

Kv

Kv Values Butterfl y Valves VF SeriesA valve fl ow coeffi cient represents the standard fl ow rate which fl ows through the valve at a given opening, referred to pre-established condi-tions:

* Kv value is the volume of water at 20ºC, in cubic meters per hour (m3/h), that will fl ow through the valve at a static pressure drop of 1 bar across the valve

* Cv value is the volume of water at 60ºF, in gallons per minute (gpm), that will fl ow through the valve at a static pressure drop of 1 psi across the valveConversion from Kv to Cv can be roughly calculated by means of the following expression:Cv = Kv x 1,17

Flow rate through the valve with other liquids can be calculated with the following expressions (for gases please consult us)Kv = q (SG / dp)1/2whereq = water fl ow (m3/h)SG = specifi c gravity (1 for water)dp = pressure drop (bar)

Cv = q (SG / dp)1/2whereq = water fl ow (US gallons per minu-te)SG = specifi c gravity (1 for water)dp = pressure drop (psi)

It is common practice to size the val-ves on the basis of pipe DN for on off application. Nevertheless, Butter-fl y Valves used for control purpose should be calculated on the basis of operating conditions.

First step is to calculate the Kv values for the diff erent working conditions and then choose the DN with such Kv values in the region of 20º to 70º valve opening angle.

As a general guideline, fl ow velocities should under certain limits, so as to avoid valve excessive noise, vibration and cavitation: Liquids: < 4,5 m/s; Gases: < 100 m/s

COMEVAL Technical Department is at your disposal to help you sizing your system.

Unival® Butterfl y Valves Engineering & Performance - Data for Unival Concentric Valves Flow Data

SizeDN 10º

Opening Angle of the Valve

253240506580

100125150200250300350400450500600700800900

10001200

364161

105176265594950

1622295747117126

102051395018232229373442939225449505952581050

105210

33375595

159240538860

14682676426364499236

126251650020758311583549940905541657375595741

22253764

107161360576983

17922855431861848454

1104913900208642377027239360724911663757

1416234067

101226361617

1124179127073878530169298716

130831490617081226203080039980

8,39,514244061

137219373680

10841639234732084193527579199022

10338136911864224198

55,38

14233578

129205387669

102813261813237029814431510563678631

1175215155

1,51,73,57

11203869

105205345534750935

12121595224627253394473164438643

-0,81,52,559

16264482

138210305388550658962

12331719247533424715

-------

0,50,81,32,13,75,57,49,7132055

135180250320

20º 30º 40º 50º 60º 70º 80º 90º

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Remarks for Actuator Sizing: The torque values given are for water or other non-viscous lubricating liquids at ambient temperature For butterfl y valves with PTFE or other non elastomeric seat, multiply above values by 1,8 (DN<100); 1,5 (DN>=100) Recommended safety factor to be applied: 30-40% for double acting pneumatic actuators 30-50% for single acting pneumatic actuators and electric actuators There are several factors that can increase above given values and should be taken into account for actuators sizing: -For gases and dry medium (non lubricating), multiply above values by about 1,25-2 depending on application -For viscous liquids increase above values depending on the liquid properties -For unusual service conditions such as likelihood of seat swelling, or low and high temperature seat hardening, an additional safety factor should be considered. There are three torques to be considered when selecting the proper actuator for a butterfl y valve: 1) Seating Torque: The torque to displace a resilient seat and eff ect shutoff . 2) Bearing Torque: The torque required to overcome friction forces on the valve shaft bearing surfaces during valve travel angle (about 30% of seating torque) 3) Dynamic Torque: Due to fl uid forces which tend to close the valve when the valve is partially open. This torque is due to the velocity of the fl uid created by a diff erential pressure across the valve. Systems should be projected to avoid high velocities across the valve

Above given values are inclusive of the 3 torques, the actuator selected must provide the calculated torque over its total opening and closing travel angle.

Valve Torques in Nm

Unival® Butterfl y Valves - Engineering & Performance Data for Unival Concentric ValvesTorque Values

SizeDN (mm)

Disc Diff erential Pressure 16 bar*

25

32

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

700

750

800

900

1000

1200

VF700/750/7U0 VF790

10

10

12

16

28

36

59

90

131

215

340

486

570

895

1335

1630

2960

8065

8910

11400

14300

19800

23850

---

---

---

22

29

41

67

101

165

297

486

699

825

1133

1518

2025

3166

5890

7750

8452

10315

17520

22160

11

Rugged and light Lever; Ergonomic design, trigger style with covered spring.Prepared for padlocking application to avoid undesired operation.Worm gear recommended for DN>200 (rubberseat), DN>125 (PTFE seat).

Notch Plate; with position indicator and gear locking, lever locking in position when needed.

Top Mounting Arrangement; top fl ange to suit actuators as per ISO 5211 standard, square stem with bevelled edges to ease actuator coupling.

O-ring safety shaft sealing, with retaining washer to ensure proper working under pressure.

Extended Valve Neck enables thermal isolation in heating plants.

Centring eyelets; series 700 provide full passing bolts to assemble between counter fl anges ISO / DIN / EN 1092 PN10, PN16 and ASA 150 (up to DN600) / or ASA 150 (DN>600).

Finely Machined Disc Edges with fi nal polishing, provides tight valve sealing and ensures minimum operating torque and longer duration of the rubber liner.

One Piece Shaft; solid, stain-less steel corrosion resistant. One piece ndability and positive disc positioning.

Precise Shaft Guiding System; the shaft is carried in four estrategically placed bushings preventing defl ection under pressure, thus ensuring optimal guidance, positive location and long life. PTFE bushing accurate guidancereduces torque and isolates the stemfrom valve body, preventing stem corrosion.

Precision Machined Body; ¡thus the liner with shaft location can be accurately positioned to ensure minimal operation wear and extended life span.

Epoxy powder paint protection

Replaceable seat liner with phenolic bac-ked seat, up to DN350-400, aluminium backed seat DN400-450 and above,non-collapsible, stretch resistant, blow out proof, allows softer rubber liners, which ensure longer life span and better tightness.Liner is profi led to ensure a tight shut off sealing when installing between fl anges(pressure activated system), thus no need toprovide gaskets between valve and counter fl anges.

Shaft-Disc threaded unionstandard up to DN300: disc off ers clean surface against the fl uid, without union pins source of corrosion and turbulences in small sizes.

Marking according to EN19, with name plate including CE marking, valve identifi cation and batch number for full traceability purpose.

Wafer TypeVF700

Lug typeVF750

Double Flange U-Type VF7U0

Unival® Butterfl y Valves Concentric Butterfl y ValvesAttributes of Design - VF700/750/7U0

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VF750VF700 VF7U0

Unival® Butterfl y Valves Concentric Butterfl y ValvesParts and Materials - VF700/750/7U0

Nº Part

Butyl Rubber (BR)

1

2

3

4

5

6

7

8

9

10

11

13

14

15

Material

BODY

DISC

LINER

STEM

O-RING

BUSHINGS

WASHER

CIRCLIP

NOTCH PLATE

HAND LEVER

STUDS

WASHERS

NUT

WORM GEAR

Cast Iron EN-JL1040 (GG25) / Ductile Iron EN-JS1030 (GGG40) / St. Steel A351 CF8M / Carbon Steel A216 WCB

Nickel Plated Ductile Iron EN-JS1030 (GGG40) / St. Steel CF8M / Al-Bronze / FEP or PFA Coated / Uranus UB6

NBR / EPDM / Viton / Hypalon / Silicon / PTFE / FEP / PFA

St. Steel AISI 416

EPDM, NBR

PTFE

Steel

Steel

Aluminium

Aluminium / Ductile Iron

Steel

Steel

Steel

Ductile Iron

13

Dimensions are expressed in mm, and subjected to manufacturing tolerances. Data can be altered without notice by our Design Department for the product benefi t.

Unival® Butterfl y Valves Wafer Style Concentric Butterfl y ValvesDimensions & Design Standards - VF700 DN32-600

Manufacture Design Standards:Quarter Turn Rotary Valves for On/Off and Modulating serviceBidirectional DesignHarmonised Standard EN 593, EN 1074-1 & 2QA certifi ed to ISO 9001:2000According to Pressure Equipment Directive PED 97/23/ECTesting standards EN12266-1 / API 598Soft seat tightness, class AMarking according to EN 19Face to face dimensions according to EN558 Series 20Body end connections wafer type to be installed between fl angesDN32-600: EN 1092-1/2 PN10/16 and ASA150; other connections available on requestEpoxy painted Blue RAL5002 - Average min. thickness 150 μm

Operating Parameters:Working pressure: 0...16 bar-g DN32-300; 0...10 bar-g DN350-600; other working pressures on requestWorking temperature: according to sealing materialSee Engineering Data for complete overview of operating parameters

Main Applications: Water, oil, compressed air, low pressure steam, etc.

DN A

MAIN DIMENSIONS COUPLING DETAIL WORM GEARLEVER

3240506580

100125150200250300350400450500600

B

121130137142158180192215242280310337358422482563

2,06,06,57,08,09,0

10,512,521,537,545,554,590,0

107,5156,0231,5

150150150150150150250250300300300300300300300300

116116116116116116168168193190190190208258222222

7x79x99x99x99x9

11x1114x1414x1417x1722x2227x2727x2727x2730x3036x3646x46

32323232323242423638384550506570

333343464652565660687878

102114127154

738290

103120152180207260315370418470525570697

5761778895

107122144171205235259304323350445

454545454545454563787878

120120120120

ØK

156156156156156156156156241241241241270270339339

77777799

1113131414222222

7070707070707171404444-----

195195195195195195278278355507507

-----

6565656565659090

125150150150150210210300

5050505050507070

102125125125125165165210

REDØC F S ZØG ØJ ØM T L

Weight (kg)

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Unival® Butterfl y Valves Wafer Style Concentric Butterfl y ValvesDimensions & Design Standards - VF700 DN700-1200

Manufacture Design Standards:Quarter Turn Rotary Valves for On/Off and Modulating serviceBidirectional DesignHarmonised Standard EN 593, EN 1074-1 & 2QA certifi ed to ISO 9001:2000According to Pressure Equipment Directive PED 97/23/ECTesting standards EN12266-1 / API 598Soft seat tightness, class AMarking according to EN 19Face to face dimensions according to EN558 Series 20Body end connections wafer type to be installed between fl angesDN700-1200: EN 1092-1/2 PN10 or PN16 or ASA150; other connections available on requestEpoxy painted Blue RAL5002 - Average min. thickness 150 μm

Operating Parameters:Working pressure: 0...10 bar-g; other working pressures on requestWorking temperature: according to sealing materialSee Engineering Data for complete overview of operating parameters


DN A

MAIN DIMENSIONS COUPLING DETAIL WORM GEARPN10

CONNECTION

700800900

10001200

B

62 9666722800940

398588852982

1549

435435435435

-

382382476476

-

300300300300300

63,3563,35

7585

105

8080

118142150

165190205218276

539608667732844

243243278278

-

ØK

357357410410

-

840950

105011601380

M27M30M30M33M36

24xØ3024xØ3328xØ3328xØ3632xØ40

254254254254288

1818181822

ØGØRED F S ZØJ ØN ØP M nXØd

Weight (kg)

15


Unival® Butterfl y Valves Lug Style Concentric Butterfl y ValvesDimensions & Design Standards - VF750

Manufacture Design Standards:Quarter Turn Rotary Valves for On/Off and Modulating serviceBidirectional DesignHarmonised Standard EN 593, EN 1074-1 & 2QA certifi ed to ISO 9001:2000According to Pressure Equipment Directive PED 97/23/ECTesting standards EN12266-1 / API 598Soft seat tightness, class AMarking according to EN 19Face to face dimensions according to EN558 Series 20Body end connections lug type to be installed between fl angesEN1092-1/2 PN16 DN25-300, PN10 DN350-600; Other connections available on requestEpoxy painted Blue RAL5002 - Average min. thickness 150 μm



DN A

MAIN DIMENSIONS COUPLING DETAIL LUG CONNECTION WORM GEAR

253240506580

100125150200250300350400450500600

B

121121130137142158180192215242280310337358422482563

2,52,57,07,58,59,5

11,013,515,525,045,057,079,5

123,0155,0228,5309,0

150150150150150150250250300300300300300300300300

116116116116116116168168193190190190208258222222

7x77x79x99x99x99x9

11x1114x1414x1417x1722x2227x2727x2727x2730x3036x3646x46

3232323232323242423638384550506570

33333343464652565660687878

102114127154

65738290

103120152180207260315370418470525570697

535761778895

107122144171205235259304323350445

454545454545454563787878

120120120120

ØK

156156156156156156156156241241241241270270339339

777777799

1113131414222222

7070707070707171404444-----

195195195195195195278278355507507

-----

656565656565659090

125150150150150210210300

505050505050507070

102125125125125165165210

REDØC F S ZØG ØJ ØM T L

Weight (kg)

nxØdØP

85100110125145160180210240295350400460515565620725

4xM124xM164xM164xM164xM168xM168xM168xM168xM208xM20

12xM2012xM2016xM2016xM2420xM2420xM2420xM27

4xM124xM164xM164xM164xM168xM168xM168xM168xM20

12xM2012xM2412xM2416xM2416xM2720xM2720xM3020xM33

85100110125145160180210240295355410470525585650770

PN16PN10

nxØdØP

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Unival® Butterfl y Valves U Style Concentric Butterfl y ValvesDimensions & Design Standards - VF70U

Manufacture Design Standards:Quarter Turn Rotary Valves for On/Off and Modulating serviceBidirectional DesignHarmonised Standard EN 593, EN 1074-1 & 2QA certifi ed to ISO 9001:2000According to Pressure Equipment Directive PED 97/23/ECTesting standards EN12266-1 / API 598 Soft seat tightness, class AMarking according to EN 19Face to face dimensions according to EN558 Series 20Flanged end connections to EN1092-1/2 PN16 DN150-300, PN10 DN350-1200. Other connections available on request.Epoxy painted Blue RAL5002 - Average min. thickness 150 μm



DN A

MAIN DIMENSIONS COUPLING DETAIL

VALVE CONNECTIONLEVER & WORM GEAR

150200250300350400450500600700800900

10001200

B nxØdØP

215241,5280300340360390420495624672720800

940,7

250300300300300300300300300300300300300300

ØKZ

168195195195195208258222222222222222222222

4270708080

114114125125125125125125125

911131314142222221818181822

70102125125125125165165165254254254254298

90125150150150150210210210300300300300350

14x1417x1722x2227x2727x2727x2730x3030x3040x40

Ø63,35Ø63,35

Ø75Ø85

Ø105

4230323245505065708080

118142150

144171205240260302346370465520591656721

844,1

156156156156156156223223223223270270339339

S

278355507507

----------

79404037----------

------

2730333336363945

240295355410470525585650770840950

105011701390

8xØ2212xØ2212xØ2612xØ2616xØ2616xØ3020xØ3020xØ3320xØ3624xØ3624xØ3928xØ3928xØ4232xØ49

240295350400460515565620725840950

105011601380

8xØ188xØ18

12xØ2212xØ2816xØ2816xØ2820xØ2820xØ2820xØ3124xØ3124xØ3428xØ3428xØ3732xØ40

ØNØGE R nxØdØPPN16PN10

M L FTM

------

2424272730303336

5660687878

102114127154163188203216276

D ØJ

17

Unival® Butterfl y Valves Double Flange Concentric Butterfl y ValvesAttributes of Design - VF790

Rugged and light Lever; Ergonomic design, trigger style with covered spring.Prepared for padlocking application to avoid undesired operation. Worm gear recommended for DN>200.

Notch Plate; with position indicator and gear locking, lever locking in intermediate position when needed.

Top Mounting Arrangement; top fl ange to suit actuators as per ISO 5211 standard, square stem with bevelled edges to ease actuator coupling.

O-ring safety shaft sealing, with retaining washer to ensure proper wor-king under pressure.


Double Flange Design; Available for several DIN / ASA counterfl anges.

Finely Machined Disc Edges with fi nal polishing, provides tight valve sealing and ensures minimum operating torque and longer duration of the rubber liner.

One Piece Shaft; solid, stainless steel corrosion resistant. One piece through design ensures dependability and positive disc positioning.

Precise Shaft Guiding System; the shaft is carried in four estrategically placed bushings preventing defl ection under pressure, thus ensuring optimal guidance, positive location and long life. PTFEbushing accurate guidance re-duces torque and isolates the stem from valve body, preventing stem corrosion.

Precision Machined Body; thus the liner with shaft location can be accurately positioned to ensure minimal operation wear and extended life span.

Epoxy powder paint protection

Vulcanized rubber seat, non-replaceable, non-collapsible, stretch resistant, blow out proof.Liner is profi led to ensure a tight shut off sealing when installing between fl anges (pressure activated system), thus no need to provide gaskets bet-ween valve and counter fl anges. Shaft-Disc threaded union

standard up to DN300: disc off ers clean surface against the fl uid, without union pins source of corrosion and turbulences in small sizes.

Marking according to EN19, with name plate including CE marking, valve identifi cation and serial number for full traceability purpose.

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18

Unival® Butterfl y Valves Double Flange Concentric Butterfl y ValvesParts and Materials - VF790

Nº Part

Butyl Rubber (BR)

1

2

3

4

5

6

7

8

9

10

11

13

14

15

Material

BODY

DISC

LINER

STEM

O-RING

BUSHINGS

WASHER

CIRCLIP

NOTCH PLATE

HAND LEVER

STUDS

WASHERS

NUT

WORM GEAR

Cast Iron EN-JL1040 (GG25) / Ductile Iron EN-JS1030 (GGG40) / St. Steel A351 CF8M / Carbon Steel A216 WCB

Nickel Plated Ductile Iron EN-JS1030 (GGG40) / St. Steel CF8M / Al-Bronze / FEP or PFA Coated

NBR / EPDM / Viton / Hypalon / Silicon / PTFE / FEP / PFA

St. Steel AISI 416

NBR, EPDM

PTFE

Steel

Steel

Aluminium

Aluminium / Ductile Iron

Steel

Steel

Steel

Ductile Iron

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Unival® Butterfl y Valves Double Flange Concentric Butterfl y ValvesDimensions & Design Standards - VF790

Manufacture Design Standards:Quarter Turn Rotary Valves for On/Off and Modulating serviceBidirectional DesignHarmonised Standard EN 593QA certifi ed to ISO 9001:2000According to Pressure Equipment Directive PED 97/23/ECTesting standards EN12266-1 / API 598Soft seat tightness, class AMarking according to EN 19Face to face dimensions according to EN558 Series 13Flanged end connections to EN1092 PN16 DN50-300, PN10 DN350-1200. Other connections available on requestEpoxy painted Blue RAL5002 - Average min. thickness 150 μm



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eDimensions are expressed in mm, and subjected to manufacturing tolerances. Data can be altered without notice by our Design Department for the product benefi t.

DN D

MAIN DIMENSIONS COUPLING DETAIL

VALVE CONNECTIONLEVER & WORM GEAR

506580

100125150200250300350400450500600700800900

10001200

E nxØdØP

108112114127140140152165178190216222229267292318330410470

150150150150250250300300300300300300300300300300300300300

ØKZ

116116116116168168195195195195208258222222222222222222222

42424242424270708080

114114125125125125125125125

777799

11131314142222221818181822

505050507070

102125125125125165165165254254254254298

656565659090

125150150150150210210210300300300300350

9x99x99x9

11x1114x1414x1417x1722x2227x2727x2727x2730x3030x3040x40

Ø63,35Ø63,35

Ø75Ø85

Ø105

32323232424230323245505065708080

118142150

156156156156156156223223223223270270339339339339339339339

S

200200200200278278355

------------

74747474797940------------

125145160180210240295355410470525585650770840950

105011701390

4xØ184xØ188xØ188xØ188xØ188xØ22

12xØ2212xØ2612xØ2616xØ2616xØ3020xØ3020xØ3320xØ3624xØ3624xØ3928xØ3928xØ4232xØ49

125145160180210240295350400460515565620725840950

105011601380

4xØ184xØ188xØ188xØ188xØ188xØ188xØ18

12xØ2212xØ2816xØ2816xØ2820xØ2820xØ2820xØ3124xØ3124xØ3428xØ3428xØ3732xØ40

ØNØJØGR nxØdØPPN16PN10

T L F

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20

Unival® Butterfl y Valves - Wafer Split Body PTFE Lined Concentric Butterfl y ValvesAttributes of Design - VF775

Rugged and light Lever; Ergonomic design, trigger style with covered spring. Prepared for padlocking application to avoid undesired operation. Worm gear for val-ves DN>100

Notch Plate; with position indi-cator, lever locking in intermediate position when needed.

Top Mounting Arrangement;top fl ange to suit actuators as per ISO 5211 standard, square stem with bevelled edges to ease actuator coupling.


PTFE Lined Disc

Split body, bolted to easy dismantling and servicing of valve disc.

PTFE bushing for accurate guiding.

2 pc – solid stem, easily accessible.

PTFE seat, easily replaceable, profi led to achieve full tightness.No need for gaskets between valve and counter fl anges.

Marking according to EN19, with name plate including CE marking, valve identifi cation and serial number for full traceability purpose.

21

Unival® Butterfl y Valves - Wafer Split Body PTFELined Concentric Butterfl y ValvesParts and Materials - VF775

Nº Part

Butyl Rubber (BR)

1.1

1.2

2

3

4.1

4.2

5

6

7

8

9

10

11

12

13

Material

UPPER BODY

LOWER BODY

DISC

SEAT

UPPER STEM

LOWER STEM

WASHER

BUSHINGS

BOLTS & NUTS

CIRCLIP

NOTCH PLATE

WASHERS

ALLEN HEAD SCREWS

HAND LEVER

WORM GEAR

DUCTILE IRON (GGG40)


PTFE LINED

PTFE

STEEL

STEEL

STEEL

PTFE

GALVANIZED STEEL

STEEL

ALUMINIUM

STEEL

GALVANIZED STEEL

ALUMINIUM/DUCTILE IRON


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22

Unival® Butterfl y Valves - Wafer Split Body PTFE Lined Concentric Butterfl y ValvesDimensions & Design S tandards - VF775

Manufacture Design Standards:Quarter Turn Rotary Valves for On/Off and Modulating serviceBidirectional DesignHarmonised Standard EN 593QA certifi ed to ISO 9001:2000According to Pressure Equipment Directive PED 97/23/EC by a recognised Notify bodyTesting standards EN12266-1 / API 598Marking according to EN 19Body end connections wafer type to be installed between fl anges PN10; other connections available on requestEpoxy painted Blue RAL5002

Operating Parameters:Working pressure: 0...10 bar-gWorking temperature: -10...110ºCSee Engineering Data for complete overview of operating parameters

Main Applications: Process


DN A

COUPLING DETAILMAIN DIMENSIONS

Butyl Rubber (BR)

50

65

80

100

125

150

200

250

300

REB C D F

LEVERLTn-ØMØJØG

WORM GEARØKZS

136

138

138

158

174

190

229

269

300

74

82

90

116

133

146

180

217

254

43

46

46

52

56

56

60

68

78

117

126

142

178

202

234

286

350

402

32

32

32

32

42

42

36

38

38

9x9

9x9

9x9

11x11

14x14

14x14

17x17

22x22

27x27

65

65

65

90

90

90

125

125

125

50

50

50

70

70

70

102

102

102

4-6.7

4-6. 7

4-6. 7

4-10.3

4-10.3

4-10.3

4-14.5

4-14.6

4-14.7

74

74

74

74

---

---

---

---

---

260

260

260

200

---

---

---

---

---

156

156

156

156

156

156

223

223

223

42

42

42

42

42

42

70

70

80

116

116

116

116

168

168

195

195

195

150

150

150

150

250

250

300

300

300

23

UNIVAL butterfl y valves can be provided with a wide range of solutions on actuation and control accessories which is all packaged at our works according to customer specifi cations. The modular system permits to distributors and plant users to assemble or replace the diverse options in site. Virtually most applications that may be encountered on the industry today are covered with the standard range of actuation and accessories, nevertheless, other customer tailored solutions can be provided by our R&D Section.

POSITION INDICATION ARRANGEMENTS ON MANUAL VALVES

Valve with worm gear withlimit switches box (metal or plastic)

Valve with hand leverwith electromechanical

limit switches

Valve with hand leverwith inductive proximity

limit switches

Valve with hand lever withlimit switches box (metal or plastic)

Valve with worm gearwith electromechanical

limit switches

Valve with worm gearwith inductive proximity

limit switches

Special designs of proven reliability have been engineered by our R&D section to provide UNIVAL users with more service options.

Pad Locked lever

OTHER OPTIONS

Stem extensions

Stem Extensions; either for manual operated valves or actuated ones. The length of extension is made to the customer specifi cation, and provides bolting arrangement on both sides: valve stem and actuator stem side with upper part according to ISO 5211 standard.

Pad Locked lever; this simple system prevents unauthorized operation at the plant. It is arranged on request.

Unival® Butterfl y Valves Actuation and Accesories on Manual Butterfl y Valves

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24

Unival® Butterfl y ValvesPneumatic Actuators CMVL T SeriesAttributes of Design

Spring cartridges: Springs are carbon steel and coated for corrosion resistance.

Pinion: Electroless nic-kel coated carbon steel Pinion (stainless steel available on request).

Seals: Temperature range from -20°C to 80°C (-10°F to 176°F) with standard Buna-N nitrile seals. Higher temperature with optional Viton seals and techno-polymer piston guides and bearings:120°C (250°F) continuous and 150°C (300°F) cyclic. Lower temperature available with silicone seals –50°C (-55°F).

Indicator:OPEN/CLOSED standard in technopolymer.On request, indicator with changeable inserts for 180° rotation

End caps and pistons: Die-cast aluminium pistons are anodized or epoxy powder coated for corrosion resistance. Die-cast aluminium end caps are epoxy powder coated.

Bearing pad:Techno-polymerLarge contact areaHigh performanceLong life resistance

Body: Extruded aluminium body (6063 or 6005) is internally machined to exact specifi cations and lapped to reduce frictions and to increase the life of seals and skates. All internal and external surfaces are anodized for corrosion resistance. Options: hard anodizing with PTFE coating, epoxy powder coated units, electroless nickel plating.

Anti-blow out system thru keyway Available extended travel stopos forFULL STROKE adjustment

ANTI-BLOW OUT SYSTEM OF THE PINIONThe anti-blowout system of the pinion is ensured thru a double protection: both with an upper c-clip and two keyways casted on the pistons. In case of unusual downward movement of the pinion, the keyways will interphere with the grooves on the pinion and therefore stopping it.

25

Unival® Butterfl y Valves Pneumatic Actuators CMVL T SeriesGeneral Design Considerations

• The CMVL T rack & pinion pneumatic actuator produces linear torque output in a compact design utilizing the same body and end caps for double acting and spring return units.

• Namur VDI/VDE 3845 and ISO 5211 dimensions on all sizes. No special blocks are required to mount solenoid valves, limit switches or positioners.

• The standard angle of rotation is 90°. Additional travel rotations of 120°, 135°, 150° and 180° are available. T15 and upper sizes feature a travel stop with ± 10° in both open and close directions (International Patent).

• The female pinion drive is standard with a double square output drive, and optional with a double-D drive, keyed drive and designs to meet your specifi c requirements.

• Shaft bearings isolate the pinion gear from the housing and support the shaft for high cycle applications.

• The pinion teeth are engaged for the full length and stroke of the piston.

• The pinion height allows manual override without disturbing the indicated positions.

• External open/closed indicator is standard, available indicators for all the rotations.

• Pistons incorporate double wear pads to separate the rack from the actuator wall and serve as both guide and wear bearings.

• T series pistons feature a keyway as anti-blowout system.

• All internal and external components are treated to increase corrosion resistance.

• Epoxy coated special steel springs are pre-loaded.

• The stainless steel end cap fasteners are extra long to allow for spring relaxation. All parts are corrosion resistant.

• Air pressure operation from 2 to 10 Bar (40 – 150 PSI). Water, nitrogen and compatible hydraulic fl uids may also be used to power the actuator.

• All external fasteners are corrosion resistant stainless steel.

• All units are permanently lubricated at the factory with non-silicone grease.

• All units are externally stamped with a progressive traceable serial number.

• 100% of all units are factory pressure leak tested, and individually boxed for shipment.

OPEN/CLOSED standard for 90°

Indicator with changeable inserts for 180° and special

rotation.

Indicator with metallic insert to activate external proximity

sensors.

INDICATORS

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26

Unival® Butterfl y ValvesPneumatic Actuators CMVL T SeriesBi-Directional Patented Travel Stop Illustration

CMVL-T actuators feature a bi-directional travel stop (InternationalPatent). Side located stops allow a ± 10° adjustment - BEST IN THE MARKET - in both closing and opening directions, so guarantee a range of adjustment between 70°and 110° of actuator stroke. Travel stops are designed to absorb the maximum rated torque of the actuator and the maximum impact load associated with recommended speed stroke. To increase pistons resistance both travel stops arrest the pistons in their part with the largest mass of material. Adjustment of the counter clockwise and clockwise rotation is accomplished by turning the respective left (MAX) and right stop (0°) adjustment screws to increase or reduce output rotation.

OPTIONAL: extended travel stops for FULL STROKE adjustment

SPRING ASSEMBLY

MOUNTING VARIATIONS

27

Unival® Butterfl y Valves Pneumatic Actuators CMVL T SeriesSpecial Coatings

ANODIZED

ANODIZED WITH EXPOY COATING

ELECTROLESS NICKEL INFUSED

ANODIZED WITH PTFE COATING

Descripción Color Application

Uniform coating of 25 μ thickness, extremely hard (45-65 HRC) and resistan to abra-sion.Good corrosion resistance in environments with pH from 4.5 to 8.5 and salt fog test.

Silver-gray Industry general use.Non recommended for Highly acidic or basic environments


Thick powder coating (80 – 100 μ ) which creates a barrier against many of the chemicals which anodizing alone can not adequately resist. It will resist more acidic or basic environ-ments than anodizing alone. Good results in salt fog test.

Black (standard)Other color available

Industry general use.Suitable for low concentra-tions of caustic washdown solution. Will not withstand high acids and alkali.


Uniform coating of 20 – 30 μ , also on sharp corners, holes and threads, with 45-55 HRC hardness and therefore resis-tant to incidental damages. The coating will provide en-hanced corrosion protection in very acidic environments but will not withstand attack from strong alkaline media.

Shiny silver, similar to stainless steel

Industry general use. Suitable for low to medium concentra-tions of caustic washdown solutions. Also suitable for low alkaline solutions and de-tergents in food and sanitary applications.


This coating provides comple-te surface coverage and ex-hibits excellent corrosion re-sistance properties in a wide variety of applications.

Black These coatings are resistant to any environment into which an actuator would be insta-lled. Provided the integrity of the surface is intact, the coa-ting can resist a broad array of chemical environments, low alcaline and low acid so-lutions, marine environment, even at high temperature

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28

Unival® Butterfl y Valves Pneumatic Actuators CMVL T SeriesDimensions

Dimension (mm)

Air Consumption

Weights (kg)

Model A B ØC ISO 5211DSQ PXØWKØJISO CONNECTION

67

81

81

9696

114131131145181181230

230

338

338

40

47

47

5454626666739191

114

114

169

169

12

12

12

1414

19,519,519,528282828

28

45

45

45

45

45

454545454545454545

45

55

55

12,5

19

19

192323303030313741

50

64

64

1,5

2

2

222333334

4

5

5

47

62

62

76,576,590,595,595,598,5

124,5124,5160,5

160,5

155

155

22

33

33

3540,540,540,545

56,554,566,570

80

105

140

59,5

82,5

98,5

88,5119,5115123145

175,5180,5209210

251

305,5

354

D

71

81

81

9898

117154154

168,5202202257

257

328

328

E F G H ØI L L1 M

59,5

82,5

98,5

88,5119,5115123145

175,5180,5209210

251

305,5

354

10

10

10

101014141420202020

20

36

36

F03/F05F04

F04/F07F05/F07F04/F07F05/F07F05/F07F05/F07F05/F07F07/F10F07/F10F07/F10F10/F12F10/F12F10/F12F10/F14F10/F12F10/F14

F14F16F16

364242504250505050707070

102102102102102102140165

M5X9 M5X9M5X9M6X9M5X9 M6X9M6X9M6X9M6X9

M8X12M8X12M8X12

M10X15M10X15M10X15M10X15M10X15M10X15M16X24M20X32M20X32

50-

707070 70707070

102102102125125125140125140

---

M6X9-

M8X12M8X12M8X12M8X12M8X12M8X12M8X12

M10X15M10X15M10X15M12X18M12X18M12X18M16X24M12X18M16X24

---

11

14

14

1717172222222727363636464646

T05

T15

T17

T20T25T30T35T40T45T50T55T60

T65

T70

T75

Butyl Rubber (BR)

DA

SR 7X5

T25T20

121

121

130

137

T05 T15 T17 T55T50T45T35T30 T75T70T65T60T40Type

0,22

13,50

0,13

8,00

0,22

13,50

0,13

8,00

0,22

13,50

0,13

8,00

0,22

13,50

0,13

8,00

1,10

68,70

0,48

30,00

1,40

88,90

0,65

40,60

2,45

153,10

1,20

75,00

3,05

190,60

1,60

100,00

4,40

275,00

1,85

115,60

4,60

287,50

2,50

156,25

9,00

565,50

4,10

256,30

12,50

781,30

6,50

406,20

16,60

1037,50

7,10

443,80

27,10

1693,80

9,60

600,00

31,40

1962,50

11,70

731,30

Weight (SR)

Weight (DA)

T25T20T05 T15 T17 T55T50T45T35T30 T75T70T65T60T40Model

0,99

0,91

1,69

1,50

2,42

2,18

2,53

2,15

3,77

3,25

4,88

4,15

7,89

6,45

9,38

7,70

13,21

10,65

21,00

16,20

23,32

18,50

42,30

32,70

45,80

36,20

82,96

66,80

96,00

81,60

29

Unival® Butterfl y Valves Pneumatic Actuators CMVL T SeriesSpring Return Actuator Sizing

To size and choose an actuator, proceed as follows:

1. To determine the needed torque, increase of 25% ÷ 50%, depending on the type of the valve and working conditions, the value of the rated valve torque.2. Using the “Spring return 90°” table, locate the End/Pos. 1 column, with the torque value either exact or exceeding the needed torque.3. According to the air pressure supply, locate the End/Pos. 2 column, with the torque value either exact or excee ding the needed torque.

Example:Ball valve with 25 Nm, fail close.Safety factor: 30%Needed torque: (25 + 30%) = 32,5 NmAir pressure: 6 barUsing the table, fi nd a closing torque value End/Pos. 1, which should be bigger than 32,5 Nm.The T25S5 gives a closing torque (End/Pos.1) of 34,9 Nm and an opening torque (End/Pos. 2) of 35,2 Nm.This is the actuator to be chosen.

TORQUE TABLE GUIDE

The spring return actuator has a decreasing torque output throughout the stroke. During the opening phase, the torque decreases, because the springs are compressed, and, working against the piston’s stroke, absorb energy. In the closing phase instead, the springs release this energy.

So the torque is stated with 4 values:• Opening Start/Pos. 2• Opening End/Pos. 2• Close Start/Pos. 1• Close End/Pos. 1

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30

Unival® Butterfl y ValvesPneumatic Actuators CMVL T SeriesParts and Materials

* Item 20, 21, 23, 24 and 25 not available for T05

Nº PART NAME

Butyl Rubber (BR)

QTY MATERIAL

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

END CAP SCREW

LEFT END CAP

END CAP O RING

GUIDE RING

PISTON O RING

LEFT PISTON

PISTON SKATE

ACTUATOR BODY

UPPER PINION O RING

UPPER PINION BEARING

PINION

LOWER PINION BEARING

LOWER PINION O RING

UPPER WASHER

C CLIP

INDICATOR (FIX PART)

INDICATOR (ROTATING PART)

C CLIP

RIGHT PISTON

INTERNAL REGULATION SCREW

STOP BOLT

RIGHT END CAP

TRAVEL STOP O RING

WASHER

TRAVEL STOP BOLT

8

1

2

2

2

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

2

2

AISI 304 STAINLESS STEEL

DIE CAST ALUMINUM UNI 5076

BUNA-N

TECHNO-POLYMER

BUNA-N


TECHNO-POLYMER

EXTRUDED ALUMINUM (6063 or 6005)

BUNA-N

TECHNO-POLYMER

NICKEL PLATED CARBON STEEL (optional STAINLESS STEEL)

TECHNO-POLYMER

BUNA-N

TECHNO-POLYMER


TECHNO-POLYMER

TECHNO-POLYMER






BUNA-N



Unival® Butterfl y ValvesPneumatic Actuators CMVL T SeriesOptions and Accesories

Intermediate Gear Box for emergency manual actuation

Inductive proximity limit switches

Metal or plastic limit switches boxes

Solenoid Valves for On/Off control

Pneumatic or Electropneumatic, Standard or Intelligent Positionners

Valve position indication can be provided by some arrangements such as Limit Switches that can be mounted either onto the actuator shell or cased into plastic or metal boxes.

Solenoid Valves in diverse materials and confi gurations can be provided as the most common accessories on pneumatic actuators. For throttling services a range of standard or smart Positionners can be adapted onto the actuators. Intermediate Gear Boxes can be fi tted in all cases for emergency manual actuation.

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Unival® Butterfl y ValvesAssembly Dimensions of Pneumatic Actuators on Wafer Style Concentric Butterfl y Valves - VF700

Dimensions are expressed in mm, and subjected to manufacturing tolerances. Data can be altered without notice by our Design Department for the product benefi t.** With intermediate coupling bracket.


DN32-600

DN700-1200

DN AMAIN DIMENSIONS Weight

(kg)PN10 CONNECTION

nXØdØP MB DDOUBLE ACTING

700800900

10001200

629666722800940

539608667732844

165190205218276

840950

105011601380

M27M30M30M33M36

24xØ3024xØ3328xØ3328xØ3632xØ40

VUHType

1050114711951670

--

146146168

1550--

585872

640--

CMVLBD300**CMVLBD350**CMVLBD350**CMVLBD500**

--

VUHType

1500154015951820

--

1550155015502070

--

640640640850

--

CMVLBS500**CMVLBS500**CMVLBS500**CMVLBS600**

--

SINGLE ACTING

----------

DN AMAIN DIMENSIONS Weight

(kg)B ØCDOUBLE ACTING

VUHTypeSINGLE ACTING

253240506580

100

125150

200250300350400450500600

121121130137142158

180

192215

242280310337358422482563

535761778895

107

122144

171205235259304323350445

65738290

103120

152

180207

260315370418470525570697

VUHType

242242251268273287

328

340382419446560572599689839870

175175175207248248

241

261305367381428467467636636734

818181819696

114

131131145181181230230338338338

CMVLTD05CMVLTD05CMVLTD05CMVLTD15CMVLTD15CMVLTD17

CMVLTD020

CMVLTD25CMVLTD30CMVLTD35CMVLTD40CMVLTD45CMVLTD50CMVLTD50CMVLTD60CMVLTD65CMVLTD70

252252261268290304325347440396419434494532627654860810870

1085

175175175207248248241241261261305367381428467467636636734860

818181819696

114114131131131145181181230230338338338380

CMVLTS15CMVLTS15CMVLTS15CMVLTS17CMVLTS25CMVLTS25CMVLTS30CMVLTS30CMVLTS35CMVLTS35CMVLTS40CMVLTS45CMVLTS50CMVLTS55CMVLTS60CMVLTS60CMVLTS70CMVLTS70CMVLTS75

CMVLBS350

4,04,08,09,0

10,512,013,014,017,018,522,526,542,561,087,096,0

173,0190,0254,0

---

D

333333434646

52

5656

60687878

102114127154 CMVLBD240 or CMVLBD270

33

Dimensions are expressed in mm, and subjected to manufacturing tolerances. Data can be altered without notice by our Design Department for the product benefi t.** With intermediate coupling.

Unival® Butterfl y ValvesAssembly Dimensions of Pneumatic Actuators on Lug Style Butterfl y Valves - VF750

DN APN16

LUG CONNECTIONMAIN DIMENSIONSWeight

(kg)

Butyl Rubber (BR)

25

32

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

PN10

nxØdØP

121

121

130

137

142

158

180

192

215

242

280

310

337

357,3

422

482

563

53

57

61

77

87,5

95

107

121,5

144

171

205

235

258,5

303,3

323

350

445

65

73

82

90

103

120

152

180

207

260

315

370

418

470

525

570

697

33

33

33

43

46

46

52

56

56

60

68

78

78

102

114

127

154

85

100

110

125

145

160

180

210

240

295

350

400

460

515

565

620

725

4xM12

4xM16

4xM16

4xM16

4xM16

8xM16

8xM16

8xM16

8xM20

8xM20

12xM20

12xM20

16xM20

16xM24

20xM24

20xM24

20xM27

B ØP D

85

100

110

125

145

160

180

210

240

295

355

410

470

525

585

650

770

4,0

4,0

8,0

9,0

10,5

12,0

13,0

14,0

18,5

20,0

24,5

29,5

47,5

66,0

99,0

122,0

208,0

238,0

327,0

---

V

DOUBLE ACTING

UHType

CMVLTD05

CMVLTD05

CMVLTD05

CMVLTD15

CMVLTD15

CMVLTD17

CMVLTD20

CMVLTD25

CMVLTD30

CMVLTD35

CMVLTD40

CMVLTD45

CMVLTD50

CMVLTD50

CMVLTD60

CMVLTD65

CMVLTD70

242

242

251

268

273

287

328

340

382

419

446

560

572

599

689

839

870

175

175

175

207

248

248

241

261

305

367

381

428

467

467

636

636

734

81

81

81

81

96

96

114

131

131

145

181

181

230

230

338

338

338

4xM12

4xM16

4xM16

4xM16

4xM16

8xM16

8xM16

8xM16

8xM20

12xM20

12xM24

12xM24

16xM24

16xM27

20xM27

20xM30

20xM33

nxØdØP V

SINGLE ACTING

UHType

CMVLTS15

CMVLTS15

CMVLTS15

CMVLTS17

CMVLTS25

CMVLTS25

CMVLTS30

CMVLTS30

CMVLTS35

CMVLTS35

CMVLTS40

CMVLTS45

CMVLTS50

CMVLTS55

CMVLTS60

CMVLTS60

CMVLTS270

CMVLTS270

CMVLTS75

CMVLBS350

252

252

261

268

290

304

325

347

440

396

419

434

494

532

627

654

860

810

870

1085

175

175

175

207

248

248

241

241

261

261

305

367

381

428

467

467

636

636

734

860

81

81

81

81

96

96

114

114

131

131

131

145

181

181

230

230

338

338

338

380CMVLBD240 or CMVLBD270

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Unival® Butterfl y Valves Multi-Voltage Electric Actuators Attributes of Design

On receipt of a continuous power signal, the motor runs and via a fl at gear box system, rotates the output shaft. The motor is stopped by internal cams fi tted the output striking microswitches, which cut the power to the motor. When a subsequent continuous signal is received, the motor will turn in the opposite direction, reversing the direction of the output drive

ATC AUTOMATIC TEMPERATURE CONTROL Anti-condensation heater to avoid damage caused by water condensed inside the actuator

AVS AUTOVOLTAGE SENSINGMulti-voltage system makes automatic adjustments to work with the voltage applied within the voltage range.L series range: 12 to 24 Vac/dc - H series range: 85 to 240 Vac/dc

ETL ELECTRONIC TORQUE LIMITER ETL cuts the power to the motor and prevents its damage when maximum permisible torqueis exceed.

MO MANUAL OVERRIDEEmergency Manual Operation, manual-auto-matic function change by a selector lever.

PES PROTECTED ELECTRICAL SUPPLYProtection against shortcir-cuits or bad connection. DIN plugs eliminate the need to remove the cover for connection.

VC0 VISUAL CONTROL OF OPERATION (on request) Top LED indicates the ope-ration of the actuator

VFC VOLT FREE CONTACTS1 set of open and closed volt free contacts as standard

VALVE COUPLING to ISO5211/DIN 3337 for direct assembly on valves

Automatic / Manual lever

Volt free contact plug

Power supply plug

Visual position indicator

35

Unival® Butterfl y Valves Multi-Voltage Electric ActuatorsMain Data

*Working Angle: 90º - 180º - 270º * Duty Rating: 75 % * IP Rating IEC 60529: IP-65 * Temperature: -20º + 60º (-4º + 140ºF) * Limit Switch: 4 SPDT micro * Heater: 4W * Plugs: DIN 43650 ISO 4400 & C192

Main Parts and Materials

Main Dimensions (mm)L/H 20

L/H 55

L/H 140

L/H 300

Technical Data

Specifi cations

Voltage

Maximum Operational Torque

Maximum Torque Break

Multifl ange

Double sq. hole

Mod. H300Mod. L300

300 Nm

380 Nm

300 Nm

380 Nm

F07 & F10

Standard 22 mm / option 17 mm

Operation Time (s/90º)No load +/- 10%

12 – 24 VAC 50/60 HZ / VDC

60 sec.

85 – 240 VAC 50/60 HZ / VDC

60 sec.

Specifi cations

Voltage



Multifl ange

Double sq. hole

Mod. H140Mod. L140

140 Nm

25 Nm

140 Nm

25 Nm

F07 & F10



80 – 240 VAC 50/60 HZ / VDC

33 sec.

15 - 48 VAC 50/60 HZ / 12 - 48 VDC

33 sec.

Specifi cations

Voltage



Multifl ange

Double sq. hole

Mod. H55Mod. L55

55 Nm

60 Nm

55 Nm

60 Nm

F07 & F10



80 – 240 VAC 50/60 HZ / VDC

10 sec.

15 - 48 VAC 50/60 HZ / 12 - 48 VDC

10 sec.

Specifi cations

Voltage



Multifl ange

Double sq. hole

Mod. H20Mod. L20

20 Nm

25 Nm

20 Nm

25 Nm

F03, F04 & F05

Standard 14 mm / option 9 or 11 mm


85 – 240 VAC 50/60 HZ / VDC

15 sec.

12 – 24 VAC 50/60 HZ / VDC

15 sec.

Part Material

Butyl Rubber (BR)

Enclosure:

Internal cams:

Main external shaft:

Gears

Position indicator

Fastening

Anticorrosive Polyamide

Glass fi lled Polyamide

Stainless Steel

Steel and Polyamide

Glass fi lled Polyamide

Stainless Steel

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Unival® Butterfl y Valves Multi-Voltage Electric ActuatorsOptions and Accesories

The DPS 2005 is a device for the J3 electric actuator that turns the actuator in a valve positioner servo controled.

The DPS 2005 is a modulus with a microprocessor (CPU) which ma-nages digitally the analogical input and output and compare them with the position of the actuator to stablish an uniform relation. The analogical inputs are sent to CPU where they are processed for his continous comparison with the position of the actuator, this allows to obtain a very high sensitivity next to a very high repetitivity of the position (see characteristics).

The DPS 2005 in communication with the electronic system of the actuator provides an integral management of the motion on the ac-tuator.

The DPS 2005 is available for the ”H” and “L” series.

Digital Positionner

Main Advantages and Features

The BSR safety blok system is an automatism that when couple to the L & H Series multivoltage electric actuators lets the valve situate in a prefereable position NC or NA when there is a power supply failure.Inside of the housing actuator there are BSR’s print circuit board and the battery pack which are kept in continuous charge.

In case of the valve is not in the prefereable position and there is the power supply cut, the BSR system returns the valve back to the prefereable position by means of the batteries tension opera-ting as a “single acting” actuator.

Safety Block System

Automatic Reset

Automatic Setup

Possibility of using the DPS 2005 for regulations 90º, 180º

and 270º acted on the setup only.

Input signal: 4 - 20 mA / 0- 10 V

Output signal: 4 - 20 mA / 0- 10 V

Precision: better than 1%

Settings: max - min.

Lineality: better than 1%

Hysteresis: better than 1%

Min. resolution: better than 1%

37

Unival® Butterfl y Valves Assembly Dimensions of Electric Actuators on Wafer Style Concentric Butterfl y Valves - VF700


DN A V

MAIN DIMENSIONSWeight

(kg)

Butyl Rubber (BR)

32

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

ELECTRIC ACTUATOR

WUHType

121

130

137

142

158

180

192

215

242

280

310

337

358

422

482

563

57

61

77

88

95

107

122

144

171

205

235

259

304

323

350

445

73

82

90

103

120

152

180

207

260

315

370

418

470

525

570

687

33

33

43

46

46

52

56

56

60

68

78

78

102

114

127

154

B ØP D

CMVLU0

CMVLU0

CMVLH20

CMVLH55

CMVLH55

CMVLH55

CMVLH140

CMVLH140

CMVLH300

CMVLH300**

--

--

--

--

--

--

3,0

3,5

4,0

5,5

6,0

7,0

11,5

13,5

18,0

29,0

--

--

--

--

--

--

104

104

104

104

105

105

105

214

214

214

--

--

--

--

--

--

122

122

122

122

122

122

122

128

128

128

169

169

169

169

169

169

169

235

235

235

--

--

--

--

--

--

280

280

290

295

350

365

390

455

480

510

--

--

--

--

--

--

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Unival® Butterfl y Valves Assembly Dimensions of Electric Actuators on Lug Style Butterfl y Valves - VF750


Bolts Flanges PN10*

DN A nxØd

PN16

V

LUG CONNECTIONMAIN DIMENSIONSWeight

(kg)

Butyl Rubber (BR)

25

32

40

50

65

80

100

125

150

200

250

300

350

400

450

500

600

ELECTRIC ACTUATOR

WUHType

PN10

ØPnxØdØP

121

121

130

137

142

158

180

192

215

242

280

310

337

358

422

482

563

53

57

61

77

88

95

107

122

144

171

205

235

259

304

323

350

445

65

73

82

90

103

120

152

180

207

260

315

370

418

470

525

570

687

33

33

33

43

46

46

52

56

56

60

68

78

78

102

114

127

154

85

100

110

125

145

160

180

210

240

295

350

400

460

515

565

620

725

4xM12

4xM16

4xM16

4xM16

4xM16

8xM16

8xM16

8xM16

8xM20

8xM20

12xM20

12xM20

16xM20

16xM24

20xM24

20xM24

20xM27

B ØP D

85

100

110

125

145

160

180

210

240

295

355

410

470

525

585

650

770

CMVLU0

CMVLU0

CMVLU0

CMVLH20

CMVLH55

CMVLH55

CMVLH55

CMVLH140

CMVLH140

CMVLH300

CMVLH300**

--

--

--

--

--

--

3,5

4,0

4,5

5,0

6,5

7,5

9,0

14,5

16,5

21,0

37,0

--

--

--

--

--

--

104

104

104

104

105

105

105

214

214

214

214

--

--

--

--

--

--

122

122

122

122

122

122

122

128

128

128

128

--

--

--

--

--

--

169

169

169

169

169

169

169

235

235

235

235

--

--

--

--

--

--

280

280

290

295

350

365

390

455

480

510

570

--

--

--

--

--

--

4xM12

4xM16

4xM16

4xM16

4xM16

8xM16

8xM16

8xM16

8xM20

12xM20

12xM24

12xM24

16xM24

16xM27

20xM27

20xM30

20xM33

39

Unival® Butterfl y Valves Wafer & Lug Concentric Butterfl y ValvesAssembly Set

UNI VF700 (wafer) PN10

UNI VF750 (lug) PN16

UNI VF700 (wafer) PN16

*Welding neck fl anges EN1092-1 11 PN10 (DIN2632)

*Welding neck fl anges EN1092-1 11 PN10 (DIN2632) *Welding neck fl anges EN1092-1 11 PN16 (DIN2633)

*Welding neck fl anges EN1092-1 11 PN16 (DIN2633)

UNI VF750 (lug) PN10

DNBolts with nuts Stay bolts with nuts Flanges PN10*

Quantity Size Quantity Size Quantity

M16x85M16x100M16x110M16x110M16x110M16x120M20x125M20x140M20x150M20x160M20x160M24x200M24x220M24x230M27x270M27x70M30x80M30x80M33x80

---------------

20/4020/4024/4824/48

---------------

M27x310M30x340M30x360M33x380

2222222222222222222

40506580

100125150200250300350400450500600700800900

1000

44488888

121216162020208888

DNBolts with nuts Stay bolts with nuts Flanges PN10*

Quantity Size Quantity Size Quantity

M16x90M16x100M16x110M16x110M16x120M16x130M20x140M20x140M24x160M24x180M24x180M27x220M27x230M30x250M33x300M33x90M36x90M36x90

M39x100

---------------

20/4020/4024/4824/48

---------------

M33x340M36x370M36x390M39x420

2222222222222222222

40506580

100125150200250300350400450500600700800900

1000

4448888

12121216162020208888

DNBolts Flanges PN10*

QuantityQuantity Size

M12x30M16x30M16x30M16x35M16x40M16x40M16x40M16x45M20x45M20x50M20x55M20x60M20x60M24x70M24x70M24x80M27x80

22222222222222222

253240506580

100125150200250300350400450500600

88888

161616161624243232404040

DNBolts Flanges PN10*

QuantityQuantity Size

M12x30M16x30M16x30M16x35M16x40M16x40M16x40M16x45M20x45M20x50M24x55M24x60M24x60M27x75M27x80M30x90M33x90

22222222222222222

253240506580

100125150200250300350400450500600

8888

16161616162424243232404040

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1. – GENERAL INFORMATION. WORKING PRINCIPLE.UNIVAL® Concentric Resilient Butterfl y Valves are rotation motion bidirectional valves to stop or restrict the fl ow of fl uids. The valves close by turning the disc 90º clockwise. The valve is open when the lever is parallel to the pipe. The valves can also be used for throttling purpose by fi xing the lever, worm gear or actuator in intermediate positions.

The equipment is designed and manufactured following procedures and high quality standards dictated by the EN ISO 9001. They conform to PED 97/23/CE and are CE marked when applicable. The equipment is inspected and tested to EN 12266-1.

The label in the product states maximum pressure, temperature, body, disc and seat materials & counterfl anges for installation. For complete technical description (dimensions, connections, pressure-temperature rating, materials of constructions, applications, etc.) please refer to the corresponding approved order drawing, our Data Sheets at www.comeval.es or contact us at +34 961479011.

2. – GUARANTEE.UNIVAL®Butterfl y Valves are guaranteed against any manufacturing default in accordance with Sound Enginee-ring Practice and provided the application, installation and maintenance operations have been properly followed, according to our General Sales Terms.

The guarantee coverage does not apply to eventual damages caused by operation under duties other than described in our Data Sheet and product label. No claims derived from wrong handling and/or lack of obser- vation of General Technical Rules will be accepted.

Our guarantee coverage does not cover for any commissioning or in site maintenance jobs or either products proved to have been tampered with or faulted by material wear and tear.

The Purchaser is responsible for checking that the in-coming product is received in good condition and con- forms to the ordered specifi cations. In case of damage caused during transit it is necessary to immediately complain to the carrier within 24 hours. After this time carriers could not assume the derived costs.

3. – ESSENTIAL SAFETY GUIDELINES- Read this manual before installing the product.- Always use the product within the scope of intended service and operating duties.- Essential safety working regulations are to be strictly kept.- Only qualifi ed personnel should start up and regularly follow maintenance jobs at the plant.- Any deviation from the usual installation guidelines should be notifi ed to us for approval.

4. – PRESERVATION, STORAGE & TRANSPORTATION- Keep storage protection. Always use right handling means and proper packing for transportation.- Do not make use of stems, handwheels or actuators for valve weightlifting purpose.- Keep the valves with disc slightly open without coming out from the valve profi le.- Avoid extreme temperatures, high environmental humidity or corrosive environment. Keep the valves away from direct sunlight, dust, fl ames or rain to avoid damage and rust of the valve surface.- Some materials are coated by a paint layer against corrosion, do not damage this layer.- Avoid bumping or external vibrations. Do not pile up excessive weight. In case of severe bumping inspect the ma-terial for any damage and replace if necessary.

Unival® Butterfl y Valves Installation, Start-Up and Maintenance

41

5. – INSTALLATIONBear in mind the following guidelines along with general installation practice:

Check the equipment design codes in relation with the applicable plant codes.

Ensure that pressure design, temperature design, fl ow direction, valve construction materials compatibility and other essential parameters conform with the duty. (Check operating limits on the Data Sheets, approved drawing and valve marking).Consider the interaction between the system and the equipment. Avoid water hammers caused by a suddenopen or close of the valve. Foresee elements to absorb vibrations, pipe dilatations, guides, anchoring and proper support according to the weight of the components.

Avoid turbulences in the pipe that generate hydrodynamic forces increasing operating torque of the valve. Avoid high velocities in the system.

Downstream from a disruptive element (pump, valve, elbow, pipe reduction…) leave as much distance as possible, minimum distance recommended: 5-6 times the valve DN (5-6DN).

Upstream from a disruptive element, leave at least a distance of 2DN.

All steam systems in the plant should be designed to prevent condensate depots which could lead to water ham-mers.

Allow enough space to ease maintenance operations.

Remove carefully the storage protection if any just before installation. Special care to be taken in order not to dama-ge the soft parts.

Ensure that the valve inside and the piping system are free from dirt, rust, pipe, scale, welding slag or any other foreign material. Flush the pipe and set strainers with proper size mesh to protect the valve.Attention! In case of use of use of cleaning or anticorrosive products, ensure that their composition and tempe-rature are compatible with the valve materials of construction

- Installation position:

These valves are generally bidirectional.

Wafer and Lug type valves and double fl ange valves are to be installed between counter fl anges.

Stem preferable position is horizontal, with the lower edge of the disc opening with the direction of the fl ow. This prevents deposition of slurries and contamination in the shaft sealing area. Valve of small sizes in clean systems can be also installed with the stem in vertical position, never downwards to avoid that any leakage could damage the actuator.

Avoid gradients, excessive rotation and pipe misalignment that could cause pipe stress once installed in the pipe work. Ensure that contact faces of valve and counterfl anges are in good condition and free from impurities. Counter-fl anges should fi t smoothly. Make sure that the gap between the 2 counterfl anges has enough clearance to fi t the valve without damaging the rubber faces (carefully retract slightly counterfl anges if necessary), but the gap shall not be larger than necessary to limit additional pipe load.be larger than necessary to limit additional pipe load. U

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To protect damage of the valve disc, be sure that the clearance of the adjacent counterfl anges and pipe is enough for the disc in full open position. Otherwise please use extension pipe.

Counterfl anges according to EN 1092-1 PN10 and/or PN16, and/or ANSI B16.5 ASA150 welding neck type are sui-table for UNIVAL butterfl y valves depending on valve type (see valve label). For installation between other fl ange types please consult us. Slip-on fl anges have a larger inside diameter, requiring a perfect centering and hindering the tightness between valve and counterfl anges, even aff ecting to stem tightness; we do not recommend this type of counterfl anges.

Tightness gaskets or grease are not required between the valve and the pipe counterfl anges. The valve rubber facing is used for this purpose. If installed between slip-on fl anges, gaskets could be needed.

Attention! It is very important to ensure the correct centring of the valve between the counterfl anges. An inco-rrect centring of the valve with the counterfl anges will cause leakage. An excessive or irregular tightening onto the rubber facing, or tightening with the valve not correctly centred, could cause damages in the rubber leading to further leakage.

Valves should be installed with disc slightly open without coming out from the valve profi le. Carefully centre the valve between counter fl anges and fi t all the screws and nuts. Then open completely the valve.With the valve disc open, tighten opposing bolts gradually until getting contact between the body and fl ange face, according to the following sequence.

Attention! Tightening the valve in close position causes sleeve deformation, torque increase and leakage.

Do not exceed the maximum tightening torque values given in this table just as extreme limit:

Bolt Size M16 M20 M24 M27 M33Max Torque (Nm) 150 270 540 730 1250

Attention! Protect the valve rubber seats from heating caused by welding works at the plant during commissio-ning.

END OF LINE POSITION: Attention! For end-of-line position use lug type or fl anged butterfl y valve. Do not use wafer type butterfl y valvesfor such purpose.

Attention! If a valve at end-of-line position has to be open under pressure, do it carefully since the fl uid splashes at high velocity, and mind your hands when closing.

Attention! We recommend the use of an additional blind fl ange (specially in the event of dangerous fl uids) and make sure that the valve is blocked in closed position during normal service.

43

ATEX: For application in Ex-atmosphere of zones 1, 2, 21, 22, the butterfl y has to be used with an earth clip or conductive fl ange gaskets. The shunt resistor must be less than 106 Ohms. Elastomeric or fl uoropolymer surfaces should be cleaned if necessary with a wet cloth to avoid electrostatic charge.

ACTUATOR: If the valve requires pneumatic, electric or hydraulic actuators, separate actuator IOMs shall be also followed. Make sure that the actuator is suitable for service particular requirements, valve adaptability, function needed, adequate torque for the valve, operation speed, need for limit switches, etc. Ensure correct adjustment of stop limits and torque setting. Contact our Technical Department for advice.Anchoring should be required depending on the complete valve and actuator assembly weight and installation posi-tion.

Project engineers and contractors are responsible for the right placement and commissioning of the valve.

6. – START UP & OPERATION- Recheck all the issues raised in previous chapter “Installation”.

- Once the valve installed, make an initial opening and closure manoeuvre to check its proper operability.

- Valve operation, fi lling, warming-up and starting-up shall be gradual so as to avoid any inadmissible stress.

- Attention! Do not pressurize if the valve does not have actuator device. Butterfl y valves are not self locking.

- Check for tightness in valve connections and stem sealing. Retighten fl ange bolts crosswise and gradually if neces-sary until leakage elimination (never retighten with the valve fully closed!), making sure that operating torque is not signifi cantly aff ected. If leakage persists, correct alignment and centring of the valve should be checked, and surfa-ces should be thoroughly cleaned. If contact surfaces are irreversibly damaged replace them. If valve leaks through the stem please contact us for advice.

- Maximum hydraulic test pressure at valve open is 1,5 x PN (Pmax or Ps in the label).

- Maximum hydraulic test pressure at valve close is 1,1 x PN (Pmax or Ps in the label). Pressure medium to be water at ambient temperature.

- We recommend control operation in the range of 15º to 75º disc open angle only.

- Warning! Temperatures above 50ºC or below 0ºC may cause personnel injuries if valves are touched. Ensure that the corresponding warning signs are displayed on the valve or surrounding area, or isolate the equipment in case of danger.

IT IS THE RESPONSIBILITY OF THE INSTALLER / OPERATOR TO ENSURE THAT ALL HEALTH & SAFETY REQUI-REMENTS ARE FOLLOWED AS LAID DOWN BY THE CONTROLLING COMPANY

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7. – MAINTENANCE AND SPARE PARTS.

Maintenance and corresponding intervals should be defi ned and scheduled by the plant operation personnel accor-ding to service level.

In the event of infrequent use, operate the valve as frequently as possible to avoid deposits of dirt as well as valve blocking.

Check for body and seat tightness and valve smooth operation without additional tools.

Before starting any maintenance work at the plant, wait for the valve medium to cool down and release the pressu-re from the system. Clean the pipe system thoroughly in the event of toxic, corrosive, fl ammable or caustic fl uids. Remove the valve with the disc slightly open.

Attention! A butterfl y valve is not self locking, so that the actuation device (lever, gear or actuator) should only be disassembled after pressure release.

- Warning! when used in ATEX zone, there is the risk of electrostatic charges created by the fl ow. The user is responsible to avoid the risk. Read chapter 5 – Installation.

Check the valve surface inside and outside. If advanced corrosion or erosion is observed double check service and valve features and replace the valve properly.

Check the valve seat and disc surfaces as well as the stem sealing, and replace if necessary.

Valve rubber seats are replaceable in most of Unival® range. However, given the reasonably low cost of the entire valve thanks to the serial and bulk production, sometimes it is not economically wise to replace them. Should seats or stem seal are to be replaced, please get in touch with our specialised personnel for technical assistance.

Always refer to chapters “Installation” and “Start Up” when mounting the valve back in line.

Recommended Spare PartsType and number of each spare part to be stored according to service level and valves quantity. Spare seats, stem seals and discs can be supplied as spare parts depending on models and sizes. Concentric Resilient Butterfl y valves are in many models and sizes highly serialized manufactured items at relatively low cost thus complete valves are often the best option.

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Full technical support always available through our website www.comeval.es.

8. – TROUBLE SHOOTING CHART

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SYMPTOM LIKELY REASON CORRECTIVE ACTION(always follow this manual for any corrective action)

No fl owNot enough fl ow

Valve closed or partially closed Check valve position

Valve protections / packing not removed Remove protections

Pipe system or strainer clogged Check and clean system

Atmospheric leakage through the stem

Counterfl anges tightening not uniform or not suffi cient, valve not properly cente-red or not well aligned pipe

Revise assembly and tightening, dismou-nt and mount back properly if needed

Stem seals or stem damaged or worn down

Revise and replace if needed

Excessive pressure or temperature, fl uid not compatible

Revise working conditions

Leakage between body and counter-fl anges

Counterfl anges tightening not uniform or not suffi cient, valve not properly cente-red or not well aligned pipe

Revise assembly and tightening, dismount and mount back properly if needed

Counterfl anges or rubber lining face dirty, scratched or damaged

Dismount the valve from pipeline, clean, correct damages or replace parts

Counterfl anges type is not well suitable (example: slip-on fl anges)

Revise counterfl anges type

Diffi cult to operate or blocked / not able to achieve full closing / not able to open

Wrong rotary movement operation Operate rightly. Clockwise to closeExcesssive differential pressure, high turbulences, working conditions beyond allowable limits

Check working conditions and system. Replace by correct valveRubber damaged, swollen, hardened or

aged, not compatible fl uidDisc corroded or damaged by cavitation or impuritiesCounterfl anges tightening with valve disc in closed position, causing a protusion in the sealing area

Replace the seat or the valve

Impurities trapped between disc and seat

Open and close the valve under pressu-re to sweep the dirt trapped. Clean the system and set a strainer upstream of the valve. Repair or replace the valve if needed

Valve body broken Assembly bolts with counterfl anges has been wrongly tightened or counterfl an-ges are misaligned or with too much gap

Revise installation and tightening accor-ding to this manual

Wafer valve installed at the end of a pipeline

Replace by lug or double fl ange type

Pressures or temperatures beyond allowable limits

Replace by suitable valve

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The below chart is intended to provide the end user and valve selection staff with a useful guide to material compatibility. No contractual responsibility is accepted by our company as result of wrong use of this list of compounds and materials. It has to be born in mind that the process may change behavior depending on other parameters such as pressure, temperature, concentration, fl uid velocity…etc. The Valve materials are wide in their specifi cation, i.e: Iron foundry refers to Cast Iron, Ductile Iron and other Iron alloys. Carbon Steel applies to A216 WCB however other cast steel alloys such as LCB, WCC have to be interpolated between this cast steel and the superior Stainless Steel. Other materials and elastomeric compounds not covered in this table can be advised by our technical team.

SELECTION CODE:A= EXCELLENTB= IT MAY BE USEDC= USE WITH CAUTIOND= NO,DO NOT USE

MATERIALS SEAT ELASTOMER

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316 EPDM / EPRBUNA N VITON PTFE

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Unival® Butterfl y Valves Material Selection Guidance

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METHANEMETHYL ACETATEMETHYL ACETONEMETHYLAMINEMETHYL CELLOSOLVEMETHYL CHORIDEMETHYL ETHYL KETONEMETHYL FORMATEMETHYLENE CHORIDEMILKMINE WATERS (ACID)MINERAL OILMIXED ACIDS (COLD)MOLASSES EDIBLEMOLASSES CRUDEMURIATIC ACIDMUSTARDNAPHTHANAPHALENENICKEL AMMONIUM SULFATENICKEL CHORIDENICKEL NITRATENICKEL SULFATENICOTINIC ACIDNITRIC ACID (10%)NITRIC ACID (30%)NITRIC ACID (80%)NITRIC ACID (100%)NITRIC ACID ANHYDROUSNITROBENZENENITROGENNITROUS ACID (10%)NITROUS GASES NITROUS OXIDE OILS AMINALOILS COTTONSEEDOILS FISHOILS FUELOILS LUBEOILS MINERALOILS PETROLEUM (REFINED)OILS PETROLEUM (SOUR)OILS WATER MIXTURESOLEIC ACIDOLEUMOLIVE OILOXALIC ACIDOXYGENOZONEPALMITIC ACIDPALM OIL

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SODIUM ALUMINATESODIUM BICARBONATESODIUM BISULFATE (10%)SODIUM BISULFITE (10%)SODIUM BORATESODIUM BROMIDE (10%)SODIUM CARBONATESODIUM CHORATESODIUM CHLORIDESODIUM CHOROMATESODIUM CYANIDESODIUM FLUORIDESODIUM HYDROXIDE (COLD) 20%SODIUM HYDROXIDE (HOT) 20%SODIUM HYDROXIDE (COLD) 50%SODIUM HYDROXIDE (HOT) 50%SODIUM HYDROXIDE (COLD) 70%SODIUM HYDROXIDE (HOT) 70%SODIUM HYPOCHIORIDESODIUM METAPHOSPHATESODIUM METASSILICATE (COLD)SODIUM METASSILICATE (HOT)SODIUM NITRADESODIUM PERBORATESODIUM PEROXIDESODIUM PHOSPHATE (DIBASIC)SODIUM PHOSPHATE (TRIBASIC)SODIUM SILICATESODIUM SILICATE (HOT)SODIUM SULFATESODIUM SULFIDESODIUM SULFIDE (HOT)SODIUM THIOSULFATESOYBEAN OILSTANNIE CHORIDESTARCHSTEAM (212ºF)STEARIC ACIDSTODDARD SOLVENTSTYRENESUGAR LIQUIDSSULFATE BLACK LIQUORSULFATE GREEN LIQUORSULFATE WHITE LIQUORSULPHURSULPHUR DIOXIDESULPHUR TRIOXIDESULFURIC ACID (0-7%)SULFURIC ACID (20%)SULFURIC ACID (50%)SULFURIC ACID (100%)

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IRONFOUNDRY

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SULFUROUS ACIDSÍNTESIS GASTALL OILTANNIC ACIDTAR AND TAR OILTARTARIC ACIDTETRAETHYL LEADTOLUENE OR TOLUOLTOMATO JUICETRANSFORMER OILTRIBUTYL PHOSPHATETRICHLORETHYLENETUNG OILTURPENTINEUREAVARNISHVEGETABLE OIL EDIBLEVEGETABLE OIL NON EDIBLEVINEGARWATER DISTILLED (AERRATED)WATER FRESHWATER SEAWAX EMULSIONSWAXESWHISKEY AND WINEXLENEZINC CHORIDEZINC HYDROSULFITEZINC SUFATE

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53

Unival® Butterfl y ValvesMarketing Tools Available to Distributors

A rich assortment of Unival® marketing tools are available to our distributors worldwide, visit our corporateWeb site www.comeval.es for more details.

Data Sheets ManualComprehensive of all technical and engineering information on the comprehensive portfolio.

Web Site Product SheetValve description, main dimensions, operating parameters and other links accessible at your fi nger tips.

TraceabilityValves are provided with a riveted name plate ensuring traceability, year of manufacture and main parameters. Valves are individually preserved into a sealed air bubble plastic bag and then on sets of some number of valves per cardboard box to assist with handling and storing. Please ask your UNIVAL® distributor for packaging details. (no minimum order requirement is imposed).

Price ListsUp dated price book comprehensive of all models including actuated valves.

Operating and Maintenance ManualsProvided along every valve into the sealed plastic bag. Also accessible via Internet at all times

Arrangement DrawingsStandardized sectional parts and dimensional drawings for use on engineering projects or enquiries.

Cut way / Demo Samples

Join us on the net to start your Unival® experience

www.comeval.es

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Unival® Butterfl y ValvesGet in touch

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The UNIVAL® range of Butterfl y Valves are lengthy available across the World at the UNIVAL® distributors

place to ensure a prompt service. Get in touch through www.comeval.es to know where

the nearest available stock location is from yours.

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Butterfl y Valveswww.comeval.es

Unival®

www.comeval.es

Unival®Excelling the best.

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