industrial diaphragm valves brands you trust

Industrial Diaphragm Valves

brands you trust.

0 3

The Original and the BestSaunders diaphragm valve features and benefitsfor corrosive and abrasive applications with100% leaktight closure operation

Compressor supports thediaphragm in all positionsfor longer life

Wide range ofbody materialsavailable

Paint finish resists environmental attack

Wide choice ofdiaphragm materialsprovide positive shut-offand isolate all bonnetworking parts from theline fluid

Body end connections –screwed, flanged or weldend options to variousinternational standards

Reinforceddiaphragms givelong life and leakfree operation

Handwheel sized forcomfortable grip andeasy operation

Lubricated for long life.Lipseal prevents ingressof dust, dirt andatmospheric pollutants

Yellow valve indicatorgives clear indication ofvalve position

Sealed toatmosphere bonnetoption available

Many valve liningoptions available.Lower cost than alloy options

Pocketless design for smooth flowcharacteristics

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•

•

•

•

•

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Crane Process Flow Technologies0 4

Saunders Diaphragm Valve RangeValves for Corrosive and Abrasive Applications

Ability of leak tight � � � � � �shut-off against gases, � � � � �liquids and solids � � �

��

Resistance to abrasion � � � � � �and erosion � � � � �

� � ��

Wide choice of � � � � � �materials to � � � � � �match service � � � � �

� � � ��

Non-turbulent flow path � � � � � ��

� �

Low fluid friction loss � � � � � ��

Weight/size ratio � � � � � ��

��

Resistance to corrosion � � � � � ��

Compact overall height � � � � � ��

� � ��

Pressure range � � � � � ��

� � � � ��

Vacuum capability � � � � � ��

Maintenance – � � � � � �in line servicing, � � � � �low cost spares � � � �

��

High purity � � � � � ��

Control applications � � � � � ��

�

On/off applications � � � � � ��

� �

Temperature range � � � � � ��

� � � � ��

Valve/Service features Diaphragm Ball Butterfly Globe Gate Lubricated Plug

Comparison of different valve types against industrial processrequirements

We at Crane Process FlowTechnologies Ltd have inour Saunders portfolio acomprehensive range ofdiaphragm valves forindustry. They encompassthe full spectrum ofcorrosive and abrasiveapplications that requirereliable leak free valveoperation.

Easily maintained to ensure many years oftrouble free operation, the Saunders valve hasbecome the standard valveused in many industriessuch as chemicalproduction, mining, water treatment, fertiliserproduction and marine to name just a few.

Five stars – exceptionalOne star – poor

��

�

Gate

Globe

Butterfly

Ball

Plug

0 5

Saunders Diaphragm Valve RangeValves for Corrosive and Abrasive Applications

A Type screwed

Weir type valve inSG iron, gunmetaland stainless steel.DN8 to DN50

KB Straight through valve

Diaphragm valve with a fullbore opening to ensuremaximum flow when handlingviscous or abrasive fluids.Also available with variousdiaphragm and lining options.DN15 to DN350

KB Type screwed

Straight through borescrewed valve in castiron, gunmetal andstainless steel.DN15 to DN50

WFB

A specialised range of weir type diaphragm valves for marine and firefightingapplications. Used primarily aswater hydrant valves because of 100% reliability inadverse conditions.

DN40 and DN65

AFP valve

Weir type diaphragmvalve in stainless steelfor the biopharm andchemicals markets.DN8 to DN150

A Type flanged

Weir type flanged valve in castiron, SG iron, cast steel, gunmetaland stainless steel. Can also beprovided with various body linings

and diaphragms to suit mostindustrial duties includingcorrosive and abrasiveapplications.

DN15 to DN350


Saunders A Type Diaphragm ValvesValve Benefits for Corrosive and Abrasive Applications

Our Saunders A Type diaphragm valves have been developed to handle a wider range of fluids and gases than any other valve type. A wide choice is available for materials, methods of operation and body end connections –to satisfy the needs of most corrosive and abrasive applications.

Pocketless design for contamination free performance and smooth flow characteristics. Linear operation ensuresvalve does not induce damaging pressure surges or static charges.

Three part design allows maintenance and actuator retrofittingwithout removing thevalve from the pipeline.Overall this results inlower cost of ownershipcompared to other valve types.

On pressure and vacuum, Saunders diaphragm valves operate and close 100% leaktight even after thousands of operations. This feature reduces processing and handling costs, by eliminating emissions normally associated with conventional valve designs.

All working parts of the valves are isolated from the line media and positive closure is obtained even on frequent cycling or with entrained particulates in the line unlike quarter turn ball and butterfly valves. Throttling and control characteristics are enhanced by a streamlined flow path that is cavity free and provides excellent flow control capabilities.

Extended life, reliability, safety and ease of use, combined with an essentiallysimple design, results in low maintenance for minimum running costs.

Ease of maintenance

Valve flow

0 7

Bonnet assemblylubricated for long life.Needs no additionalgrease. The indicator lipseal stops the ingress ofdust, dirt and atmosphericcontaminates.

Restricted valveoperation can beachieved by utilising the padlocking bonnet option.

The Saunders valve canbe installed to assist self-draining if required.Please consult us fordrainage angle advice.

The Saunders valve can be installed in anyposition without affectingits operation. However,we recommend 6x pipediameter from bend or pump.

Valve usable inany position

Sealed bonnet

Valve set for self draining

Padlock bonnet

Lubrication

α

In cases where hazardous liquids or gases are being handled and where additional safety features are considered to be necessary.


Saunders A Type Diaphragm ValvesMaterials of Construction – Valve Bodies

Rubber lined body data

Plastic lined body features

� SG iron body – highmechanical strength

� SG iron body –mechanically supportsplastic lining

� Lining protected fromultraviolet (UV)

� Injection gate to side ofweir flange means:–

� Smooth weir fordiaphragm sealing andzero leakage

� Lining lock-on weir flangeand in-bore inlet

� Lining thickness range 3 –5mm (DN20–DN150)

� Soft rubber linings

� Butyl (Isobutyleneisoprene), 60–66° IRHD

� Hard ebonite rubberHRL, 75–85° Shore D

� Lining thickness range 2–4.5mm(DN20–DN350)

CAST IRONBS EN 1561 GJL–250 Flanged DN15–DN500

SG IRONBS EN 1563 GJS–450–10 Screwed DN15–DN50BS EN 1563 GJS–400–18 Flanged DN15–DN150

GJS–400–18–LT

CAST STEELASTM A216 WCB Flanged DN15–DN100

BRONZEBS EN 1982 CC491K–GS Screwed DN15–DN50BS EN 1982 CC492K–GS Flanged DN15–DN100

STAINLESS STEELBS 3100 316C16 Screwed DN15–DN50BS 3100 316C16 Flanged DN15–DN150

Valve body lining – production tests

Standard Unlined Body Material

Lined valve weir plan

All Saunders linedvalves have each bodyindividually tested forlining integrity.

� Glass lining – Spark test 10kV ac

� Rubber, Butyl – Spark test 14kV ac/dc

� Rubber, HRL – Spark test 17kV ac/dc

� Plastic lined – Spark test 20kV ac/dc

Lined valve body section

A Type valve bodyETFE lined

A Type valve body hard

rubber lined

A Type valve bodyPFA lined

0 9

Saunders Environmental Protection

� Hard Rubber – NR/HRL

Used for salts in water, dilute mineral acids,chlorine water, de-ionised water, platingsolutions and potable water.

� Soft Butyl Rubber – IIR/BL

Good for corrosive and abrasive slurries,mineral acids and acidic slurries.

� Glass

Used in multi-process chemical plants onacids and solvents.

� Polypropylene – PP

Main applications include mineral acids,salts in water, water and effluent treatmentchemicals.

� Ethylene tetrafluoroethylene – ETFE

Suitable for strong acids, salts in water athigher temperatures, solvents at mediumtemperature.

� Perfluoroalkoxy – PFA

Most suitable for concentrated mineralacids at high temperature, aromatic,aliphatic and chlorinated solvents.

� Polytetrafluoroethylene – PTFE

Most suitable for concentrated mineralacids at high temperature, aromatic,aliphatic and chlorinated solvents.

� Soft Natural Rubber - AA/SRL

High abrasion resistance.Suitable for use on powders, abrasiveslurries, clays, coal dust, dry fertilizer,gypsum.

� Neoprene – NRL

Particularly suitable for animal, vegetable,fatty oils and greases. Abrasion resistanceover wide pH range –used for aggressiveslurries.

Valve Body Lining Materials – Visual Process Resistance Guide

A B R A S I O N R E S I S T A N C E High

CO

RR

OS

IO

N/

CH

EM

IC

AL

R

ES

IS

TA

NC

EH

igh

Valve Body Linings for Saunders Valves

� PTFE/PFA

� ETFE

� HRL

� PP� Butyl

� Neoprene

� Glass

� AA Natural

Saunders environmental protective coating has beendeveloped specifically to provide unrivalled corrosiveresistance in the industrial processing industry, the newprotective coating utilises Du Pont’s Tefzel™(Ethylenetetraflouroethylene) material.

The green Tefzel™ coating is applied before the injectionmoulding of the Perfluoroalkoxy (PFA) orEthylenetetraflourorethylene (ETFE) lining, using anelectrostatic powder coating method. By coating the valvebody, bonnet and hand wheel, both internal and externalcorrosive protection is maximised providing peace of mind inextreme corrosive material processing applications.

Available in DN 20-100 with a PFA lining and DN 20 – 150 inthe ETFE lined option.


Saunders A Type Diaphragm ValvesMaterials of Construction – Diaphragms

We at Crane Process Flow Technologies are proud of our corecompetence, the in-house manufacture of Saunders diaphragms foruse within our valve range. Many years of experience has resulted in arange of diaphragms, which handle a wide variety of fluids with totalsecurity. The guaranteed high performance of Saunders diaphragmsresults from stringent quality control and continuous development.

� High flex performance

� Good compressionset properties

� Chemical resistance

� Abrasion resistance

� Anti-aging

� Approvals, traceability

Rubber DiaphragmsThe polymer materialis bonded with a highstrength wovenreinforcement toensure maximumstrength anddurability.

Rubber diaphragm screw fixing

PTFE diaphragm bayonet fixing

Key Considerations Diaphragm Construction

PTFE DiaphragmsA two piece construction PTFE face with a rubber backingdiaphragm to increase pressure rating and durability. Thesediaphragms have a bayonet fitting to ensure reliable installation,reduced point loading and ensure maximum life. The 214K isthree piece specially reinforced for chlorine service.

� Constructed with multi-layers of rubber andnylon reinforcement

� Studs are attachedwith bonding adhesiveand mechanicalanchorage

� Rib on face for weirflange and across weirfor leak tight sealingand lower closuretorque

� Compressor support inboth the open andclosed positions forextended life

1 1

Saunders A Type Diaphragm ValvesDiaphragm Materials of Construction

� Full traceability ofmanufacture toEN10204 3.1b (wasDIN 50049 3.1b)

� Coding tag for bothmaterial and batchnumber for easyidentification

� Saunders name toconfirm genuinemanufacture andmaximum reliability

Standard� Rubber diaphragms

have a brass stud

� Diaphragms suitablefor vacuum duties(eg. CV) have steelstud

� PTFE diaphragms arefitted with stainlesssteel bayonet

SaundersDiaphragms areprovided with:–

Grade Elastomer type General service and approvals

C Butadiene Acrylonitrile, sulphur cured, Lubricating oil, cutting oils, paraffin, animal black reinforced and vegetable oils, aviation kerosene

CV Butadiene Acrylonitrile, sulphur cured, Vacuum where oils are present,black reinforced compressed air, liquid petroleum gas (LPG)

HT Polychloroprene, sulphur cured, Abrasive slurries containing hydrocarbonsblack reinforced

Q Natural rubber polyisoprene/SBR, Salts in water, dilute acids and alkalis, abrasivessulphur cured, black reinforced

226 Fluoroelastomer, amine cured, Concentrated acids, aromatic solvents, chlorine, ozone,black reinforced chlorinated solvents, unleaded petroleum

237 Chlorosulphonated polyethylene Strong acids, sodium hypochlorite, chlorine gasmetal oxide cured, black reinforced

286 Chlorosulphonated polyethylene metal Fire mains isolation in WFB valveoxide cured, black reinforced Kevlarfabric reinforced

300 Isobutylene Isoprene, resin cured Salts in water, dilute acids and alkalis, drinking water, black reinforced Food & Drug Administration (FDA), United States

Pharmacopeia (USP), Water Regulations Advisory Scheme (WRAS)

425 Ethylene propylene (EPM) Salts in water, acids and alkalis, ozone, intermittentorganic peroxide cured, black reinforced steam, drinking water, FDA, USP, WRAS

425V Ethylene propylene (EPM) Vacuum where acid, alkali, water vapours are present,organic peroxide cured, black reinforced FDA, USP, WRAS

214/226 Virgin PTFE/Fluoroelastomer – two piece Strong acids, solvents, chlorine, bromineat higher temperatures

214/300 Virgin PTFE/Isobutylene isoprene – Strong acids, alkalis and salts in water at hightwo piece temperature. Constant steam, water for injection (WFI),

biopharmaceuticals, FDA USP, WRAS

214/425 Virgin PTFE/Ethylene propylene – Strong acids, alkalis and salts in water at hightwo piece temperature. Constant steam, water for injection (WFI),

biopharmaceuticals, FDA, USP, WRAS

214S/425 Virgin PTFE/PPVE/Ethylene propylene – Strong acids, alkalis and salts in water at hightwo piece temperature. Constant and intermittent steam,

WFI, biopharmaceuticals, FDA, USP, WRAS

214K/425 Virgin PTFE/PVDF/Ethylene propylene – Chlorine, bromine gas and chlorinated solventsthree piece


Saunders A Type Diaphragm ValvesDiaphragm Materials

Size DN 8 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350

Non-rising handwheel 6 5 4 3.5Rising handwheel 16 16 16 16 16 16 16 16 10 10 10 10 10WFB and tank cleaning 15 15

Size DN 8 10 15 20 25 32 40 50 65 80 100 125 150 200 250

Non-rising handwheel 6 5Rising Handwheel 10 10 10 10 10 10 10 10 10 10 10 10 7

As with all valves, the application and environment have a major bearing on actual valve operatinglimits, but the following can be used as a guide to the maximum operational limits.

Bonnet assemblies with rubber diaphragm

Bonnet assemblies with PTFE faced diaphragm

Maximum working pressure (bar) – A Type valves

Diaphragm Materials – Visual Process Resistance Guide

Material Grade

PTFE 214/214KFluoroelastomer 226Chlorosulphonatedpolyethylene 237Polychloroprene HTNitrile C, CVButyl 300, 300VEPM 425, 425VNatural Rubber QA B R A S I O N R E S I S T A N C E High

CO

RR

OS

IO

N/

CH

EM

IC

AL

R

ES

IS

TA

NC

EH

igh

� PTFE

� Fluoroelastomer

� Chlorosulphonated polyethylene

� Polychloroprene

� Butyl/EPM

� Nitrile

� Q Natural Rubber

1 3

Diaphragm PerformanceTemperature and Pressure Relationship

16

14

12

10

8

6

4

2

-10° HARD RUBBER LINED 85°

-10° POLYPROPYLENE LINED (P.P.) 85°*

-10° BUTYL RUBBER LINED 110°

-10° ETHYLENE TETRAFLUOROETHYLENE (ETFE) 150°

-10° CAST IRON: UNLINED, GLASS LINED & PTFE LINED 175°

-10° SG IRON: UNLINED AND PFA LINED 175°

-30° OTHER METALS: CARBON STEEL, STAINLESS STEEL, COPPER ALLOYS 175°

-5° 214/226 175°

-20° 214/425 160°

-20° 214/300 150°

-50° Q 100°

-20° C & CV 100°

-30º HT 100°

-5° 226 150°

-10° 237 & 286 100°

-40° 300 & 300V 130°

-40° 425 & 425V 130°

Diaphragm Temperature Type A (°C)

Temperature bands for diaphragms are shown as a guide only. Many aspects of serviceconditions will determine the highest working temperature. For example, 325 diaphragmshave given excellent performance under certain conditions up to 150°C.

In certain applications the following temperature ratings apply:SG: -20°C, SS: -30°C, GM: -30°C.

* Depends on body substrate material.** When lined body is cast steel, minimum temperature is -30°C.

When SG Grade EN-GJS-400-18-LT is used, minimum temperature is -20°C.*** 214S manual operation only.

Body Temperature Limit (°C)**

-20° 214K/425 100°

0°C 20°C 40°C 60°C 80°C 100°C 120°C 140°C 160°C 175°C

A Type Valve Body (SG Iron & Cast Iron) Temperature/Pressure Relationship

PR

ES

SU

RE

(bar

)

TEMPERATURE °C

DN8 - DN50 (R) (P)***

SG

CI

DN65-DN150 (R) DN8-DN125 (P)

DN150 (P)

DN200

DN350

DN250DN300

16

14

12

10

8

6

40°C 20°C 40°C 60°C 80°C 100°C 120°C 140°C 160°C 175°C

A Type Valve Body (Carbon Steel, St.Steel & Copper Alloys) Temperature/Pressure Relationship

PR

ES

SU

RE

(bar

)

TEMPERATURE °C

DN8 - DN50 (R) (P)***

CS

SS

COPPER ALLOY

DN65-DN150 (R) DN8-DN125 (P)

DN150 (P)


Saunders Diaphragm ValvesDimensions, Weights and Standards

Valve StandardsAs well as being in overall lengths to EN 558-1 Series 1 and Series 7 and MSS SP88, Saunders valves are manufactured to the following standards:

FlangesBRITISH BS 10 tables D and E

BS 4504 tables PN10/16BS 1560 Class 150

EUROPEAN EN 1092-1 PN10/16EN 1092-2 PN10/16

AMERICAN ASME/ANSI B16.1 Class 125ASME/ANSI B16.5 Class 150and B16.24 Class 150

JAPANESE JIS B 2212

Female screwed pipe connections

BRITISH BS 21 taperBS 21 parallel

AMERICAN API 5B

GERMAN DIN 259

INTERNATIONAL ISO 7/1 taperISO 7/1 parallel

1 5

Saunders A Type Diaphragm ValvesDimensions and Weights

8 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350

A 54 67 90 94 119 154 164 188 – – – – – – – – –B 52 61 84 88 108 142 148 164 – – – – – – – – –C 49 49 63.5 83 111 125 145 168 – – – – – – – – –Weight 0.11 0.15 0.45 0.90 1.13 1.80 2.70 5.00 – – – – – – – – –

A – – 100 91 108 143 157 175 226 243 308 388 442 495 581 679 660B – – 93 85 98 131 141 152 194 208 262 322 367 – – – –C – – 108 117 127 146 159 190 216 254 305 356 406 521 635 749 749D – – 130 150 160 180 200 230 290 310 350 400 480 600 730 850 980Weight – – 1.80 1.80 2.70 4.00 4.90 7.70 14.0 19.0 31.7 48.0 62.1 152 270 360 506

A – – – 97 111 146 160 177 229 246 311 391 445 498 585 683 664B – – – 91 101 134 144 154 197 212 265 325 370 – – – –C – – – 121 131 150 163 194 220 258 309 362 412 527 641 755 755D – – – 150 160 180 200 230 290 310 350 400 480 600 730 850 980Weight – – – 2.70 3.10 4.50 5.40 8.20 15.0 20.4 33.1 49.2 63.0 154 273 365 512

A – – 101 92 109 144 158 176 227 244 309 389 443 496 582 – –B – – 94 86 99 132 142 153 195 210 263 323 368 – – – –C – – 110 119 129 148 161 192 218 256 307 358 408 523 637 – –D – – 130 150 160 180 200 230 290 310 350 400 480 600 730 – –Weight – – 1.80 1.80 3.10 4.50 5.40 8.20 14.5 19.5 32.2 48.5 62.6 153 272 – –

A – – – 97 112 – 162 176 – 246 314 – 450 – – – –B – – – 91 102 – 145 155 – 211 267 – 374 – – – –C – – – 123 133 – 165 196 – 260 311 – 412 – – – –D – – – 150 160 – 200 230 – 310 350 – 480 – – – –Weight – – – 2.70 3.10 – 5.40 8.20 – 20.4 33.1 – 63.0 – – – –

E 38 50 62 62 80 120 120 120 170 230 280 280 368 482 584 699 699

Weights in kg. C valve length = EN 558-1 Series 7 (ex BS 5156). D valve length = EN 558-1 Series 1 (ex DIN 3202 Series F1).

Screwed

Flanged

FlangedRubber

Lined

FlangedGlass Lined

FlangedPlasticLined

Valve Diameter (DN)

E

A –

OPE

NB

– C

LOSE

D

C

E

A –

OP

ENB

– C

LOSE

D

C or D

A –

OP

ENB

– C

LOSE

D

C or D

E

E

A –

OP

ENB

– C

LOSE

D

C or D

Screwed DN8–DN50 Flanged DN15–DN50

Flanged DN65–DN150 Flanged DN200–DN350


Saunders A Type ValveFlow Co-efficient of Valve Range Cv (Kv)

Cast iron Rubber Lined Glass Plastic Lined

1009080706050403020100

5.505.285.064.834.613.843.082.301.540.770

4.714.534.334.143.953.292.621.971.320.660

–––––––––––

–––––––––––

6.005.755.515.275.034.193.352.511.670.830

5.144.934.724.524.313.592.872.151.430.710

–––––––––––

–––––––––––

% Open Cv Kv Cv Kv Cv Kv Cv Kv

DN15

B O D Y M A T E R I A L / L I N I N G

Cast iron Rubber Lined Glass Plastic Lined% Open Cv Kv Cv Kv Cv Kv Cv Kv

DN20


1009080706050403020100

11.5011.0310.5710.12

9.668.056.434.833.211.600

9.869.459.068.678.286.905.514.142.751.37

0

9.209.008.808.407.706.705.504.102.501.000

7.897.717.547.206.605.744.713.512.140.86

0

12.0011.5111.0310.5510.07

8.396.715.033.351.670

10.299.879.459.048.637.195.754.312.871.430

6.506.245.985.725.454.543.632.721.810.900

5.595.355.134.904.673.893.112.331.550.770


DN25


1009080706050403020100

17.6016.2916.1915.4814.7812.32

9.857.394.922.460

15.0913.9613.8813.2612.6710.56

8.446.334.222.11

0

14.0013.7013.4012.7011.6010.20

8.406.303.801.500

12.0011.7411.4910.89

9.948.747.205.403.251.290

18.0017.2816.5615.8315.1112.5910.07

7.555.032.510

15.4314.8114.1913.5712.9510.79

8.636.474.312.150

11.1910.7510.30

9.859.407.836.274.703.131.560

9.609.218.838.428.066.715.374.022.681.340


DN32


1009080706050403020100

27.5026.3925.2924.2023.0919.2515.3911.54

7.693.840

23.5722.6121.6820.7419.7916.5013.19

9.896.593.290

22.0021.1220.2419.3518.4715.3912.32

9.236.163.080

18.8618.1017.3516.5915.8313.1910.57

7.915.282.62

0

28.0026.8825.7524.6423.5119.6015.6711.75

7.833.910

24.0023.0422.0721.1120.1516.8013.4310.07

6.713.350

16.7016.0315.3614.6914.0211.69

9.357.014.672.330

14.3113.7413.1712.5912.0210.02

8.016.014.001.980


DN40


1009080706050403020100

43.0041.2839.5637.8436.1130.1024.0718.0512.03

6.010

36.8635.4033.9132.4330.9525.8120.6315.4710.315.15

0

35.0034.0033.632.0029.0026.0021.0016.00

9.53.90

30.0029.1428.8027.4324.8622.2818.0013.68

8.143.340

45.0043.2041.3939.5937.7931.5025.1918.8912.59

6.290

38.5737.0335.4833.9332.4127.0021.5916.1910.79

5.390

31.0029.7628.5127.2826.0321.6917.3513.01

8.674.330

26.5725.5124.4323.3822.3218.5914.8711.15

7.433.710


DN50


1009080706050403020100

80.0076.8073.5970.4067.1956.0044.7933.5922.3911.19

0

68.6165.8663.1160.3757.6248.0338.3928.7919.19

9.600

64.0063.0061.0058.0053.0047.0038.0029.0017.00

7.000

54.8954.0352.3149.7145.4340.2932.5724.8614.57

6.000

88.0084.4880.9677.4373.9161.6949.2836.9524.6412.32

0

75.4772.4569.4366.4063.3852.8242.2431.6721.1110.56

0

59.0056.0054.0052.0050.0041.0033.0025.0016.00

8.000

50.6048.0046.2944.5742.8635.1428.2821.4313.71

6.860


DN65


1009080706050403020100

127.00121.00116.00111.00106.0088.9071.1253.3335.5617.78

0

108.80103.7099.4095.1090.9076.2060.9045.7030.5015.20

0

102.0097.9093.8089.8085.7071.4057.1042.8028.6014.30

0

87.4083.9080.4076.9073.4061.2048.9036.7024.5012.20

0

132.00126.00121.00116.00110.0092.4073.9055.4037.0018.50

0

113.10108.00103.7099.4094.3079.2063.4047.5031.7015.84

0

83.0079.7076.4073.0069.7058.1046.5034.9023.2011.60

0

71.1068.3065.4062.6059.8049.8039.8029.9019.90

9.900


DN80


1009080706050403020100

185.00177.00170.00162.00155.00129.00103.0077.7051.8025.90

0

158.60151.70145.70138.90132.90110.6088.3066.6044.4022.20

0

148.00145.00142.00135.00123.00108.0089.0067.0040.0016.00

0

126.90124.30121.70115.70105.4092.6076.3048.9034.3013.70

0

186.00178.00171.00163.00156.00130.00104.0078.1052.1026.00

0

159.40152.60146.60139.70133.70111.4089.1067.0044.6022.30

0

148.00142.00136.00130.00124.00103.0082.9062.2041.4020.70

0

126.90121.70116.60111.40106.3088.3071.0044.7035.5017.80

0

1 7


DN100


1009080706050403020100

315302289277264220176132

88.2044.10

0

270259248 23722618915111376380

25224724222920918415111368280

2162122071961791581299750240

336322309295282235188141

94.1047.00

0

28827626525324220116112181400

270259248237226189151113

75.6037.80

0

2312222132031941721299765

32.400


DN125


1009080706050403020100

420403386369352294235176117590

360345331316302252201151100490

363348333319304254203152101510

31129828527326121817413087440

440422404387369308246184123620

377362346332316264211158105530

–––––––––––

–––––––––––


DN150


1009080706050403020100

605580556532508423338254169850

519497477456435363290218145730

484474465440402353290218131530

415406399377345303249187112450

630604579554529441352264176880

540518496475453378302226151750

505484464444424353282212141710

433414398381363303242182121610


DN200


1009080706050403020100

13001248119611441092910728546364182

0

111410701025981936780624468312156

0

13091256120411511099916733549366183

0

112210771032987942785628471314157

0

13201267121411611108924739554369184

0

113110861041995950792633475316158

0

–––––––––––

–––––––––––

Cast iron Rubber Lined Glass% Open Cv Kv Cv Kv Cv Kv

DN250


Cv is flow in US gpm through valve at ∆ P of 1 psi

Kv is flow in m3/hr through valve at ∆ P of 1 bar

Note: Differing Cv & Kv rating can be derived, depending on themethod used for testing. The tables above are based on BritishStandards 1042 and EN 605314/IEC 534.2.3 and show flow in US gallons per minute and cubic metres per hour.

100908070605040302010

0

1980190018211742166313861108

831554277

0

169716291561149314251188

950712475237

0

2000192018401760167914001120

839560280

0

171416461577150914391200

960719480240

0

2100201519321848176314701176

881588294

0

1800172716561584151112601008

755504252

0


DN300


100908070605040302010

0

370035523404325631072590207215531036

5180

31713045291727912663222017761331

888444

0

375036003450330031492625210015741050

5250

32143086295728292699225018001349

900450

0

388037243569341432592716217216291086

5430

33263191305929262793232718611396

931465

0


DN350


100908070605040302010

0

370035523404325631072590207215531036

5180

31713045291727912663222017761331

888444

0

375036003450330031492625210015741050

5250

32143086295728292699225018001349

900450

0

388037243569341432592716217216291086

5430

33263191305929262793232718611396

931465

0


Saunders A Type Diaphragm ValvesLarge Valve Sizes: DN400, DN450 & DN500

Some applications, for example, in the minerals processing and water treatmentindustries involving corrosive and abrasiveslurries, have successfully utilised larger sizeSaunders diaphragm valves for many years.Double weir options are also available.

These double weir bodies utilise diaphragmsand bonnets from the tried and testedDN300 and DN350 range of valves.

Valve sizes

DN400 fitted with two DN300 bonnets



Note: These valves are not suitable for usewith Group 1 (Dangerous) Gases

Size DN A B C D

400 750 750 190 700450 750 750 190 700500 750 780 230 700

(TRAVEL) ��

��

��

��

��

��

��

��

C B

D A

Large A Typevalves installed ina distillery

1 9

Cast Iron Rising Handwheel BonnetValve sizes: DN15 to DN50

Rising HandwheelValve sizes: DN8 to DN10

��

��

��

��

��

�

��

Stainless Steel (Silicone Sealed)Valve sizes: DN8 to DN80

��

Rising Handwheel Indicator(simple padlocking)

Valve sizes: DN15 to DN150*

��

��

Stainless SteelValve sizes: DN15 to DN150*

Fluoroelastomer Sealed BonnetValve sizes: DN15 to DN150*

��

Fluoroelastomer Sealed PadlockingValve sizes: DN15 to DN150*

Cast Iron Rising HandwheelValve sizes: DN65 to DN150��

��

��

��

��

��

��

Non-rising Handwheel with Indicator

Valve sizes: DN200 to DN300

��

��

��

��

��

��

��

��

�

�

�Non-rising Handwheel

without IndicationValve sizes: DN200 to DN350

Manual Bonnet Options for A Type Valves

* Handwheel is spoked design DN65 – DN150

��

Standard Range

High Performance Range

��

�


Saunders WFB Type ValvesFor Marine and Firefighting Applications

The WFB valve is a weir type diaphragmvalve developed to overcome conventionalvalve problems on fire fighting, tank cleaningand wash-down on land or sea, whereverguaranteed valve operation is needed.

There are no second chances with a defectivefire hydrant valve. Saunders WFB modelprovides dependable operation when it matters– even after years of non-use.

This highly specialised fire hydrant valve hasbeen tested and approved by the world’sleading safety agencies. Similar in design andoperation to the widely used A Type, it has theadded benefit of a certified chlorosulphonatedpolyethylene base fire resistant diaphragm. TheWFB valve is available in SG iron or gunmetalproviding high mechanical strength. This meansthat they provide greater resistance toaccidental impact. Gunmetal resists corrosionon the more demanding applications.

Model 4 with bodyand bonnet materialin gunmetal.

Diaphragms

Fire mains use:

� 286 grade ‘Fire’ diaphragm

� 233 CV grade diaphragm (tank cleaning)

Flanges

� BS10 Tables D, E and F (Gunmetal & SG)

� BS4504 PN16

� DIN 86021 ND16 and ANSI B16.24 Class 150 (Gunmetal)

� EN1092-2 PN16 and ANSI B16.1 Class 150 (SG Iron)

Main Body Inlet/Outlet Body Options

Screwed Flanged

BS 21RP BS4504 PN16 BS 21RP ANSI Class 150BS 21RP BS10 Table D BS 21 RP JIS10KANFT 7.5 TPI(American National Fire thread)Male or female

(Other screwed and flanged connections available on request)

Valve Weights (kg)Model 4 9 11

Gunmetal 10.3 10 11.5S.G.Iron 8 7.8 8.95

Model 11 with bodyand bonnet materialin gunmetal.

Model 4 withbody and bonnet materialin SG Iron

2 1

“We specified Saunders WFB65mm nominal bore fire-mainshydrant valves for our ferriesand cruise liners. Significant

factors behind this choice areexcellent reliability and the lowmaintenance costs”.P&O Cruises (UK) Ltd

• American Bureau of Shipping• UK Marine Safety Agency• Bureau Veritas• Det Norske Veritas• Rina• Lloyds• DTI

The whole valve hassuccessfully undergone a hightemperature resistance test, BS 5041 Part 1, audited by aLloyds Surveyor.

Testing Valves tested in accordance with BS 6755 i.e. body strength test to 22.5 bar, seat test to 16.5 bar (1.1 x maximum working pressure)

Registro Italiano NavalRina

Type ApprovalCertificate No: MAC/057/94

Model No: DN65

Lloyds Register of ShippingLR Type Approval Certificate

Certificate No: 97/00047Model No: DN40, DN65

Bureau VeritasType Approval Certificate

Certificate No: 2207 3457 C10 HModel No: DN40, DN65

Marine Safety AgencyThe Department of Transport

Certificate of Inspection and TestsCertificate No: SUR 222 (REV 4/94)

Model No: DN40, DN65

Det Norske VeritasRegister of Type Approval

Products No. 5: MechanicalEquipment and Piping 1997/98

Page 54Certificate No: P-9951

Model No: DN65

American Bureau of ShippingList of Type Approved Equipment

Page 25.Certificate No: 96-WM10305-X

Model No: DN40, DN65

64

111

54

183

92

111

183

92

120

183

45

21 /2" BS

P

21 /2" BSP

45º

Model 9Model 11Model 4

Model 2 Model 6 Model 7

21 /2" BS

P

SIZE MODELS BODY MATERIALS1 2 4 6 7 9 11

DN40 – � � – � � – GunmetalDN65 � � � � � � � Gunmetal and SG Iron

Cap and chain as shown is optional Cap and chain as shown is optional

Product approvals

Note: 3” flange standard option

Model 1


Pneumatic Valve ActuationEV and ES Modular Actuators

EV spring close(DN15-150)

ES Modular(DN15-150)

The ES Modular Actuator offers efficient mechanical/pneumatic controlof the diaphragm, allowing remote and automated operation.

Saunders ES Modular Actuator has been designed to offer full flexibility tothe user. Cost of ownership have been reduced through standardizationof the Actuator Heads, and a unique interchangeable bonnet assembly.

Several different actuator models may be provided for each valve size tosuit different line and operating pressures. The range allows valve closureagainst the maximum valve working pressure and can be successfullyused for modulating control duties in addition to more normal isolationfunctions.

Failsafe closing actuators are fully adjustable, i.e. spring compression canbe externally adjusted to provide optimum diaphragm forces and henceprovide extremely long diaphragm life in service.

Many accessory options are available which include solenoid valves,remote indication devices (switches or sensors) to suitenvironmental conditions such as hazardous services.Limit stops and positioners and many other devices maybe offered to allow usage within particular controlsystems. ES Modular Actuators are provided with atough polyester coating which gives maximumdurability, even in exposed locations.

3 3

Saunders diaphragm valves offerexcellent control capabilities within abroad range of pressure, flow or levelcontrol applications.

Rangeability (ratio of maximum flow vs. minimumcontrol flow) of Saunders weir type valves is 35:1extending beyond the range of most processand service control systems.

The positive shut-off characteristics of the valvecan, in many instances, eliminate the need forindependent block valves, a major component inthe piping system cost.

The inherent flow characteristics illustratedshows linearity up to 60% of travel (80% of flow).

The chart illustrates installed characteristicsaffected by the dynamic friction loss for theremainder of the piping system. Equal %characteristics can be obtained through the use of characterised positioners.

Pressure recovery factor = 0.7.

Pneumatic Valve ActuationValve Throttling and Flow Control

100

90

80

70

60

50

40

30

20

10

00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Instrument Signal psi

% M

axim

um

Flo

w (C

on

stan

t ∆

P)

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

Percent of Rated Travel

Perc

ent o

f Rat

ed F

low

QUICK OPENING

LINEAR

EQUAL PERCENTAGE

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

SHUT OPEN

Percent Valve Travel

% M

axim

um

Flo

w (C

on

stan

t ∆P

)

�

Actuator with digitalfoundation fieldbuspositioner

% flow/% travel, weirtype diaphragm valve

Diaphragm valvecharacteristic curves

Hysteresis for weirtype diaphragm valve

fitted with actuatorplus valve positioner

3 7

TECHNICAL DATA

ES Modular Pneumatic Actuation DN15 — DN150Materials of Construction

1 Upper cylinder Silicon alumin2 Diaphragm plate screw Steel3 Upper diaphragm plate Mild steel4 Cylinder nut Steel5 Cylinder bolt Steel6 Cylinder washer Steel7 Operating diaphragm Rubber8 Lower diaphragm plate Mild steel9 Lower cylinder Silicon alumin

10 Lower cylinder ‘o’ ring11 Master spindle Stainless steel12 Spindle attachment Stainless steel13 Bonnet Cast iron14 Compressor pin Steel15 Compressor Cast iron

Item Component MaterialMATERIALS OF CONSTRUCTION ES (DA)

1 Handweheel spindle Mild steel2 H/wheel spindle bush Mild steel3 Cover seal PVC4 Adj. screw locknut Mild steel5 Upper spring plate Steel6 Slot seal PVC7 Spring Steel8 Adjusting screw Mild steel9 Lower spring plate Mild steel

10 ‘O’ ring Nitrile11 Dished washer Mild steel12 Clamp washer Mild steel13 Diaphragm plate Forged steel14 Operating diaphragm Rubber15 Master spindle Stainless steel16 Compressor pin Steel17 Compressor Cast iron

Item Component MaterialMATERIALS OF CONSTRUCTION ES (SO)

ES double actingES spring opening

1 Handwheel Spindle Mild steel2 Locking bush Mild steel3 Locking bush screw Steel4 Reinforcing plate Forged steel5 Cover seal PVC6 Indicator sleeve PVC7 Slot seal PVC8 Lifiting rod locknut Steel9 Upper spring plate Forged steel

10 Outer spring Steel11 Inner spring Steel12 Lifting rod Mild steel13 Cover Silicon Alumin14 Lifting plate screw Steel15 Lifting plate Mild steel16 Diaphragm plate Forged steel17 Clamp washer Mild steel18 Lower cylinder o ring Rubber19 Master spindle Stainless steel20 Compressor pin Steel21 Compressor Cast iron

Item Component MaterialMATERIALS OF CONSTRUCTION ES (SC)

ES spring closing

+14mm+14mm+18mm

68/69/7061/62/6371/64


Model ∆ H (Type A Valve) – Size in mm h (Type KB Valve) – Size in mm

Fail Safe Spring

CLOSING

Fail Safe Spring

OPENING

DOUBLE ACTING

15 20 25 32 40 50 65 80 100 125 150

408 413 423 435 461462 476 501 501 503

700 729 732 756784 800 828 895

1031 1059 1125

378 383 393 406 432497 511 537 536 538

773 783 786 810763 786 813 881

879 907 974

155 160 170 183 209222 235 246 259 271

306 315 318 357336 363 378 444

382 410 479

Add-on

ES 61 169EV 62 260EV 63 316EV 64 425ES 65 549

ES 68 169EV 69 260ES 70 316EV 71 425ES 72 549

ES 54 169ES 55 260ES 56 316ES 57 425ES 58 549

Actuator

15 20 25 32 40 50 65 80 100 125 150

480 480520 521 518 547

740 765 797 827841 871 847 962

1102 1078 1193

450 450556 557 555 582

794 819 850 881827 857 833 948

950 926 1041

227 227280 281 280 307

326 351 382 413400 430 406 521

453 429 544

Dimension table shows in mm diameter/width of actuators and the maximum heightof the actuator from the centre of the valve flange or pipeline.

NNootteeAll dimensions are based on unlined bodies and bareshaft actuators. Add onhandwheel dimensions are below (ES Modular only)

∆ = Actuator Diameter/Width H = Actuator Height

ESC 61-65 ESO 68-72 ESDA 54-58

EVC 61-64 EVO 68-71 EVDA 54-57

∅∅

H

TECHNICAL DATA

ES Modular/EV Actuator Dimensions

4 1

Saunders Diaphragm ValvesTypical Applications

The table shows typical application areas for Saunders diaphragm valves under four categories,Abrasive, Corrosive, Industrial and Aseptic.

Abrasive

� Minerals processing,chemicals, fertilisers,china clay, paper,power generation aresome of the industriesthat rely on SaundersKB Type diaphragmvalves to withstand awide variety of abrasiveservice conditions.

� Ores – phosphate rockor bauxite in aggregateform, slurries such asgypsum in power plantde-sulphurisation,powders – titaniumdioxide in pigmentapplication are typicalservice examples.

� Applications requiring acombination ofcorrosion and abrasionresistance, such asphosphaterock/sulphuric acid,together with reliabilityand long service life arealso well catered for bythe Saunders KBrange.

Power Stations

Road Tankers

Mining

Water Treatment

China Clay Production

Marine

Corrosive

� Corrosion is estimatedto cost worldwideindustry 300 billionEuros every year.Every process industrysector handlescorrosive fluids to asmaller or greaterextent.

� Saunders haveexpertise and unrivalledexperience in corrosiveapplications.

� Continuousdevelopment of ‘in-house’ materialstechnology hasresulted in the currentextensive range ofvalve options includingelastomer andfluoropolymer linings,designed to combatcorrosion.

Industrial

� Saunders valves arewidely used on utility(air, water, and gas)service lines. Also, asmost process plantshave an effluenttreatment system thereare many applicationswhere Saunders valves can be usedsuccessfully: –

� The Food Industry –Saunders valves arewidely used onmargarine, yogurt andcorn processing plants.

� In the TransportIndustries Saundershave found success inthe marine sector asmentioned earlier, inthe automobile sectoron service lines andpaint coating systemsand on road and rail tankers.

Aseptic

� Saunders is a keyplayer in the evolutionof high purity valvetechnology.

� The top tenpharmaceuticalcompanies in the worldhead our international customer base.

� Saunders extensiverange of valvesdesigned for thepharmaceuticalindustry are detailed inother dedicatedliterature available from us.

ASEPTIC

Biotechnology

Pharmaceuticals

WFI

Fine Chemicals

Chromatography

Cosmetics

Ultra Filtration

Clean Water

CIP

Yeast

Food & Beverage

Soap

INDUSTRIAL

Marine

Vegetable Oil

Paints

Fire Fighting

Tanning

Oil Production

Automobile

Air

Effluent

Gases, Fuels

Dye Liquors

CORROSIVE

Chlor-Alkali

Iron and Steel

Sulphuric Acid

Effluent treatment

Potable Water

Pulp & Paper

Basic Chemicals

Acids and Alkalis

Organics

Toxic Fluids

Nitric Acid

ABRASIVE

Gold Mining

Cement

Copper Mining

Ceramics

FGD

Sugar

Coal Slurry

Phosphate

Sand

Fertilisers

Titanium dioxide

Sewage


Actuation Accessories

MODEL SIZE RANGE STYLE MATERIAL SOLENOID SWITCH BOX POSITIONER AIR FILTER HANDWHEEL

EC DN8-50 A, AFP PES � � � � �

SSC DN8-50 A, AFP 316 C12 � � � � �

ECX DN65-150 A, AFP SiAl � � � � �

EV DN15-150 A, AFP, KB SiAl � � � � �

ESM DN15-150 A, AFP, KB SiAl � � � � �

� = Available and � = Not available

A wide range of locally mounted banjo solenoidvalves can be fitted to the Saunders actuatorrange with a manual override option and varioushazardous area classifications. The solenoidrange should cover all yourrequirements.

Overview

Solenoid Valves

Mini Positioner

A

Module

Opti-SET Switchbox

* ASI interface can be retro-fitted

This highly modularswitchbox option isavailable for EC/SSC &ECX actuator ranges.The switchbox offers awide range of V3mechanical andproximity sensors withspace for up to 4 switch, integralsolenoid valve & ASIinterface*.

Suitable for EC andSSC Actuators. The Opti-SET is aneasy to set switchbox. Available with twomechanical or proximityswitches andintrinsically safe Option.Manufactured fromcarbon filled Nylon 66.

For control applicationon the EC and SSCthe VIAPOS mini offersboth pneumatic,electro-pneumatic anddigital inputs withsensor feedbackoption and linearmounting designproviding a neatcontrol solution.

4 3

Manufactured frompolyester coatedaluminium. Thisswitchbox is used forthe ESM and EV linearactuators. It has thecapability for up to 4 switches and canincorporate internalsolenoid valve and ASI system.

The EC/SSC limit openstop can be supplied toorder and offers a fullyadjustable travel stop.With the removal of theplastic indicator thelimit stop is easilyaccessible. �

1

2

S DANGER

OUTLET

SUPPLY

NPT 1/4"1/8"

FILTERPLUGWARNINGDO NOT REMOVETHE PLUG WHEN THEUNIT IS PRESSURIZED

NPT 1/8"

Providing precisecontrol of the flowthrough the valve. Thislong life corrosionresistant range suits awide variety ofapplications withreliability and accuracy.Available as pneumaticelectro pneumaticintrinsically safe andexplosion proof,together with a varietyof feedback options.

SSC M/O

007 Switchbox

ES Positioner

EC & SSC Limit Open Stop

��

�

For extra security theSSC can be suppliedwith an emergencymanual over-ridemanufactured fromstainless steel. Pleasecontact Crane forfurther information.

SSC SwitchboxManufactured from 316stainless steel.This switchbox is usedfor the EC and SSCcompact actuator.It is available with eithermechanical switches orproximity sensors.

Shown mounted to ESM Actuator

Shown mounted to ESM Actuator

industrial diaphragm valves brands you trust

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