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Butterfly Valves

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Engineering GREAT Solutions

IMI Interativa / Válvulas Borboleta

Butterfly Valves NE/NF & NP/NT Series

Specifications

Highlights

Features

Butterfly Valves NE/NF and NP/NT series have excellent perfomance, easy maintenance and components interchangeability and besides that, longer service life.

Construction standardAPI 609 A

EndWafer / Lug / Flanged

Face to faceAPI 609 AISO 5211 DIN 3337

DimensionsNE/NP: 1½” to 12” NF/NT: 14” to 24”

RatingsNE/NF: 50 to 250 psi NP/NT 100 to 150 psi

SeatNBR / EPDM / Viton / PTFE /Hypalon / Neoprene

MaterialsASTM A-536 for Grade 65.45.12A-351 Stainless Steel for Grade CF8M / CF8A-216 WCB Stainless StellCast Iron with E-CTFE / Nylon / NickelASTM A-536 Cast Iron for Grade 65.45.12 ASTM A-276 Stainless Steel for Grade 410 Bronze AluminiumDuplex Stainless Steel

> Monobloc body > Seat with rigid ring

> Split shaft with low pressure drop > Wide range of materials

> Body

Wafer, lug or flange style monobloc body has been designed in order to ensure maximum security and reliability (proven by Finite Elements). It has extended valve neck enabling piping isolation. Wafer style body has in its external diameter a shaped ring that eases alve installation and centralization in the pipe flanges.

*Special series made on or after DN 6”

> Disc

Disc has been designed to minimise pressure drop in totally open position. Sealing area is polished in the entire perimeter providing total sealing in relation to the seat and ensuring low operating torque.

> Shaft

Upper shaft transmits the rotation movement

to disc by means of square drive, so, there is a system that eliminates the existence of taper pins, keys and studs making nonexistent the possibilities of wear and leakage by these parts.

Upper shaft end dimensions are defined to install in actuators as per ISO 5211/DIN 3337 Standard. Upper shaft is fixed to the body through a spring pin, defining the “anti-extrusion” system of the set, avoiding the shaft being extruded from the body.

Lower shaft is fixed to the body through a spring pin, defining the “Trunnion” system of the set, ensuring perfect alignment between body, disc and shaft.

> Actuation

It allows the coupling of manual, pneumatic and electric actuators directly on the top’s flange that, together with the shaft complies with ISO 5211 Standard.

Concentric Valve

Upper shaft

Body

Shaped ring

Rigid ring

Lower shaft

Bushing

Anti-extrusion

Seat

Disc

Features

> Body

Wafer, lug or flange style monobloc body has been designed in order to ensure maximum security and reliability (proven by finite elements). It has extended valve neck enabling piping isolation. Wafer style body has in its external diameter a shaped ring that eases the valve installation and centralization on pipe flanges.

> Disc

Disc has been designed to minimise pressure drop in totally open position. Sealing area is polished in the entire perimeter providing total sealing in relation to the seat and ensuring low operating torque.

> Shaft

Upper shaft transmits the rotation movement to disc by means of square drive, so, there is a system that eliminates the existence of taper pins, keys and studs

making nonexistent the possibilities of wear and leakage by these parts.

Upper shaft end dimensions are defined to install in actuators as per ISO 5211/DIN 3337 Standard. Upper shaft is fixed to the body through a spring pin, defining the “anti-ex-trusion” system of the set, avoiding the shaft being extruded from the body.

Lower shaft is fixed to the body through a spring pin, defining the “Trunnion” system of the set, ensuring perfect alignment between body, disc and shaft.

> Actuation

It allows the coupling of manual, pneumatic and electric actuators directly on the top’s flange that, together with the shaft complies with ISO 5211 Standard..

Butterfly Valve DS SeriesButterfly valve DS series is a line of large size valves with excellent performance, easy maintenance, and component interchangeability and furthermore, longer service life.

Highlights

> Monobloc body > Rigid seat

> Flow without contact > Wide range of materials

ConcentricValve

Specifications

Construction standartAPI 609 A


Face to faceAPI 609 A ISO 5752

Dimensions26” to 72”

RatingsPN10PN16PN20

SeatElastomer

MaterialsASTM A-536 for Grade 65.45.12A-351 Stainless Steel for Grade CF8M / CF8A-216 WCB Stainless StellCast Iron with E-CTFE / Nylon / NickelASTM A-536 Cast Iron for Grade 65.45.12 ASTM A-276 Stainless Steel for Grade 410 Bronze AluminiumDuplex Stainless Steel


Butterfly Valve WR Series

Specifications

Highlights

Features

High performance butterfly valve WR Series has been designed for the growing sanitary market. Developed following international standards, it has automatic sealing system, providing high reliability under high and low pressure, longer service life and low operating torque.

Construction standardAWWA C-504

EndFlangedLong and short body

Face to faceAWWAC-504 - FLG Standard

Dimensions75 to 1800mm

RatingsPN10PN16PN25

SeatElastomer / Polyurethane

MaterialsASTM A-536 Cast Iron Gr. 65.45.12ASTM A-351 Stainless Steel Gr. CF8MASTM D-2000 EPDMNBR (Buna N) ASTM D-2000ASTM A-276 Stainless Steel Gr.410ASTM A-276 Stainless Steel Gr.304ASTM A-276 Stainless Steel Gr.630 (17-4ph)Bronze

> Eccentric or double eccentric disc > Shaft sealing

> Manual or automatic actuation > Automatic sealing

> Body

Flange style body for installation between flanges according to ASME, AWWA, DIN and NBR Standards. Face to face dimensions according AWWA C-504.

> Disc

Disc designed to minimise pressure drop in fully open position, as well as to allow grater flow rate in smaller degrees of opening.

> Shaft sealing

Sealing is made by gaskets with packing gland mounted in an inverted position, allowing easy adjustment and uniform compression of the gaskets without interfering with actuator mounting directly in the top’s flange. Standard gaskets facilitate their interchangeability.

> Actuation

It allows the coupling of manual, pneumatic and electric actuators directly on the top’s flange that, together with the shaft complies with ISO 5211 standard.

> Automatic sealing

It ensures tightness under low and high pressure, attached to disc by means of stainless steel retaining ring.

> Seat

It is mechanically fitted to the body with polished sealing surface, guaranteeing low operating torque and sealing longer service life.

> Finite elements

Project developed with the aid of software for finite elements analysis ensuring greater structural reliability to the set.

Eccentric or Double Eccentric

Valve

Eccentric Disc

Dimensions Table WR Series (PN10)

Values in millimetres (mm)

DN 4” 6” 8” 10” 12” 14” 16” 20” 24” 28” 32” 36” 40” 48”

A 127 127 152 203 203 203 203 203 203 305 305 305 305 381

B 140 190 209 215 247 305 353 430 509 585 625 690 770 1080

C 260 368 400 411 548 598 660 790 932 1091 1190 1320 1450 1610

D 17 22 27 27 27 27 36 36 46 55 108 108 128 128

□ H (Square)

□ 17 □ 22 □ 27 □ 27 □ 27 □ 27 □ 36 □ 36 □ 46 □ 55 - - - -

Ø H (Gated)

- - - - - - - - - - Ø 72 Ø 72 Ø 98 Ø 98

ISO 5211 F07 F10 F12 F14 F14 F14 F16 F16 F16 F16 F25 F25 F30 F30

*Normative options for installation drilling:- ABNT NBR 7675 Standard- ASME B16.5 / B16.47 Standard - AWWA C207 Standard

Other options avaiable on request


Butterfly ValveMS Series

Specifications

Highlights

Features

Searching for opportunities and sanitary market needs, following international standards in addition to the large experience in the industrial market, IMI Interativa has developed butterfly valves MS series, main application in basic sanitation in non-potable and potable water piping.

Construction standardDIN EN 593 / ISO 5752 - S13 or S20

EndWafer / FlangedLong and short body

Face to faceISO 5211 - S13 or S20

Dimentions80 to 2500mm

RatingsPN10PN16PN25


MaterialsASTM A-536 Cast Iron Gr. 65.45.12ASTM A-351 Stainless Steel Gr. CF8MASTM D-2000 EPDMNBR (Buna N) ASTM D-2000ASTM A-276 Stainless Steel Gr.410ASTM A-276 Stainless Steel Gr.304ASTM A-276 Stainless Steel Gr.630 17-4PHBronze

> Double eccentric disc > Seat sealing

> Upper and lower end shaft sealing > Adjustable thrust bearing

> Body

Flange style body for installation between flan-ges according to ASME, AWWA C207, DIN and NBR Standard. Face to face dimensions according ISO 5752.

> Disc

Cast disc that minimises the effects of friction with the seat and increasing its service life, besides that, it allows flow in smaller degrees of opening providing low pressure drop and torque reduction.

> Seat sealing

Fixed to the body by a device that releases the use of counter flanges or other external part to the valve, it ensures sealing even when installed at the end of the pipeline.

> Upper end shaft sealing

Adjustable gaskets with grip system dispen-se actuator withdrawal for adjustments.

> Lower end shaft sealing

Lower end shaft sealing made through O-rings camera located on the shafts and the bearings.

> Shaft to disc connection

Shaft to disc connection made through stainless steel ASTM A564 condition H1075 (17-4PH) taper pins with conicity of 1:50 with screws and pressure washers at one end to ensure a perfect mounting.

> Bearings

Bearings made in bronze SAE 660 with self lubricant polymer and dimensioned to su-pport all requests.

> Adjustable thrust bearing

Thrust bearing constructed so as to allow adjustment of the valve disc position without the need to remove valve from the pipeline. Project developed with the help of software

Double EccentricValve

Butterfly Valve NW Series

Specifications

Highlights

Features

Butterfly valve NW series is characterized by a wafer style body following the normative AWWA construction Standard. Combining years of experience and research, the results are longer service life, excellent performance, easy maintenance and interchangeability of components.

Construction standardAWWA-C504 Standard Wafer

EndWafer

Face to faceAWWA-C504 Standard Wafer

Dimensions75 to 600 mm

RatingsPN10PN16


MaterialsASTM A-536 Cast Iron Gr. 65.45.12ASTM A-351 Stainless Steel Gr. CF8MASTM D-2000 EPDMNBR (Buna N) ASTM D-2000ASTM A-276 Stainless Steel Gr.410ASTM A-276 Stainless Steel Gr.304ASTM A-276 Stainless Steel Gr.630 17-4PHBronze

> Eccentric disc > Replaceable seat

> Monobloc body > Disc configuration to minimise pressure drop

> Body

Wafe style one-piece body is designed in order to ensure maximum security and reliability (proven by finite elements). It has extended valve neck enabling piping isolation.

> Disc

Disc configuration minimises pressure drop in totally open position. Sealing area is polished in the entire perimeter providing total sealing in relation to the seat, ensuring low operating torque and less wear of the seal.

> Shaft

Upper shaft transmits the rotation movement to disc by means of torque plug, ensuring product performance and safety. Interface dimensions according to ISO 5211 Standard.

> Replaceable seat

Replaceable seat covers completely the body and consists of a rigid ring, on which the elastomer seat material is vulcanized preventing deformation, reducing actuation torque and increasing seat service life.

> Bushing

Bronze bushing eliminates friction between shaft and body providing torque reduction.

> Actuation

It allows the coupling of manual, pneumatic and electric actuators directly on the top’s flange that, together with the shaft complies with ISO 5211 Standard.

> Finite elements

Project developed with the aid of software for finite elements analysis ensuring greater structural reliability to the set.

ConcentricValve

Project developed with help of software


Butterfly Valves RK/RT Interlok Series

Specifications

Highlights

Features

Double eccentric butterfly valve RK/RT series has been designed for high performance according to API 609 category B Standard, with the purpose of filling a gap in the market to fulfill the demands of the utmost severe applications.

Construction standardAPI 609 B

EndWafer / Lug / FlangedLong and short body

Face to faceAPI 609 B

DimensionsRK: 2” to 24”RT: 26” to 54”

Ratings150# to 300# / 100psi

SeatPTFE / Inter-Hard / Stansit / Inter-SteamAiSi 316 / Incoloy

MaterialsCarbon SteelCF8M Stainless SteelPTFE / Inter Hard / Stansit / Inter-Steam17-4PH Stainless Steel PTFECF8M Chromium Stainless Steel 316 Chromium Stainless SteelGraphite / PTFE

> Monobloc body > Seat with stainless steel energizer for mechanic seated

> SOFT seated interchangeable for mecha-nic seated > Wide range of materials

> Body

Wafer, lug or flange style, one-piece body is designed in order to ensure maximum security and reliability. It has extended valve neck that eases the access to the shaft’s sealing system through housing for the packing gland. The top’s flange allows actuators direct coupling of actuators without any need of support, thus eliminating the possibility of clearances between these components.

> Disc

Double eccentric disc made in stainless steel ASTM A-351 for grade CF8M, reducing friction with the seat and increasing its service life, besides that, it allows flow in smaller degrees of opening providing low pressure drop and torque reduction.

> Seat sealing

Fixed to the body by a device that releases the use of counter flanges or other external part to the valve, it ensures sealing even when installed at the end of the line.

> Upper end shaft sealing

Adjustable PTFE gaskets with system grip dispense actuator withdrawal for adjustments.

> Shaft to disc connection

Shaft to disc connection made through stainless steel ASTM A564 condition H1075 (17-4PH) torque plug to ensure perfect mounting.

> Bearings

Bearings made of compound material of self lubricant polymer.

Double-EccentricValve

Butterfly Valve MV SeriesThe unique Orton triple eccentric design eliminates friction between the disc seal ring and the seat in the body, thereby preventing wear and any consequent leakage.

Seal ring beforeSeating

Seal ringSeated

Triple EccentricValve

Features

Highlights

> Triple eccentric design > In-line easy maintenance

> Seat metal-to-metal seal > Fire Safe and SIL 3 Certification

Specifications

Construction standardANSI 1634 and ASME VIII


Face to faceAPI 609 / ISO 5752ANSI B16.10


RatingsRating 2500#Trim 900#

SeatWide range of materials

> Body

The body in MV series is one-piece cast or forged, providing the ultimate in rigidity and leak-free performance.

> Disc

The disc includes a resilient, laminated, metal seal ring, composed of alternating layers of corrosion-resistant alloy and composite graphite. Each individual lamination provides an independent seal. > ShaftWith rigid design, the one-piece shaft is secured to the disc by taper pins, minimising hysteresis.

Being totally enclosed within the disc, the shaft is hydrodynamically efficient improving flow capability and reducing pressure drop.

> Bushings

All bushings are long and made from hardened corrosion-resistant alloy.

> Packing

The adjustable gasket box includes two rings that allow flushing, additional sealing, leaking control or monitoring.


Butterfly Valve MV Series CryogenicThe unique IMI Orton series MV triple eccentric design eliminates friction between the disc seal ring and the seat in the body, thereby improving valve performance, reducing the need of maintenance and increasing valve service life. Royal series developed to NASA applications is also used in Cryogenic processes.

First Eccentricity

Second Eccentricity

Third Eccentricity

Triple EccentricValve

Highlights

> Triple eccentricity > Design with and inspection window allows easy and quick in-line maintenance

> Inpection window with independent actuation > Fire Safe and SIL 3 certification

Specifications

Construction standardASME B16.34 / ASME VIII

EndBW - Special

Face to faceISO 5752


RatingsRating 2500#Trim 900#

SeatWide range of materials

Features

> Body

The body is made by one-piece cast or forged, providing the ultimate in rigidity and leak free performance.

> Disc

The disc includes a resilient, laminated, metal seal ring, composed of alternating layers of corrosion-resistant alloy and composite graphite. Each individual lamination provides an independent seal that can be affected by damage to the others. > ShaftWith rigid design, the one-piece shaft is secured to the disc by taper pins, minimising hysteresis.

Being totally enclosed within the disc, the shaft is hydrodynamically efficient improving flow capability and reducing pressure drop.

> Bushings

All bushings are long and made from hardened corrosion-resistant alloy.

> Packing

The adjustable gasket box includes two rings that allow flushing, additional sealing, leaking control or monitoring.

Butterfly Valve VF SeriesVF Series valve design is based upon the double eccentric concept which minimises the contact between disc seal and body seal and thereby enhances the valve performance, reduces maintenance and extends the valve service life.

First Eccentricity

Second Eccentricity

Double EccentricValve

> Body

The body is made with the purpose of providing the ultimate in rigidity and leak free performance. The conical seat, welded, bolted or integral to the body retains a sealing surface completely free of interruptions and assures a minimum reduction of the inside port diameter as well as providing the maximum flow capacity. The body internal surface can be rubber vulcanized or epoxy lined.

> Body sealing

It remains corrosion resistant that, depending on the body material this is achieved by the following solutions:

- Integrally cast, for bodies in stainless steel, bronze or other corrosion resistant alloys;

- Welded to the body, for bodies in carbon steel;- Fully vulcanized, for bodies in ductile iron or cast / fabricated carbon steel.- Integral replaceable seat options are also available.

> Seal ring

The heavy “T” section seal ring is designed to eliminate the potential extrusion divided at high flow velocity. As a result of this design, the valve is capable of providing a full tight sealing at pressures up to 25 bar.

Features

Highlights

> Double eccentricity > Field maintenance possibility

> Maximum pressure up to 25 bar > Pendulum use possibility in special conditions

Specifications

Construction StandardAPI 609 B


Face to faceAPI 609 BISO 5752


RatingsPN2,5 / PN6 / PN10 / PN16 / PN25 andASME 150

SeatElastomer

IMI Critical Engineering Lakeside, Solihull Parkway Birmingham Business Park Birmingham B37 7XZ United Kingdom

Tel: +44 (0)121 717 3700 Fax: +44 (0)121 717 3701

www.imi-critical.com

IMI Interativa Garabed Gananian Avenue, 386 Industrial District, 18087-340 Sorocaba, São Paulo - Brazil Tel: +55 (15) 3235 9500 Fax: +55 (15) 3235 9501

IMI Orton Via dei Bazachi, 50 29121 - Piacenza Emilia-Romagna - Itália

Tel: +39 0523 762 511 Fax: +39 0523 762 512

IMI Truflo Rona Quatrième Avenue, 1 4040 - Herstal Liège - Bélgica

Tel: +32 (0)4 240 6886 Fax: +32 (0)4 248 0246

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