�Stafsjö Valves AB. SE-618 95 Stavsjö, Sweden. Tel: +46 (0)11-39 31 00. Fax: +46 (0)11-39 30 67. info@stafsjo.se www.stafsjo.com

A Bröer Group company

Document: Data sheetProduct: WBSize: DN 50 - DN �200 Issue: 7 Issue date: 2009-�2-22

WBStafsjö’s knife gate valve WB is a bi-directional valve with full bore. It is made to handle different liquids, especially in water, waste water and biogas plants.

The WB valve is designed of one piece or a two piece valve body in cast iron, with flange gaskets integrated in the body. Small cavities in the bore provide for good flow characteristics and minimize the risk for clogging. The valve is equipped with a gate in stainless steel and a sealing profile in EPDM or Nitril. Stafsjö’s unique gland box packing, TwinPack™, gives a tight sealing and assures high operation reliability.

The valve is modular designed and it can easily be provided with different actuators and accessories.

Stafsjö’s knife gate valve WB is designed, manufactured, inspected and tested according to the European Pressure Equipment Directive (PED 97/23/EC) category II module A1. The valve is therefore CE-marked.

The WB valve is also available in an ATEX design (ATEX 94/ 9/EC II cat 3 G/D for zone 2 and 22). Please contact Stafsjö or your local representative for more information and advice.

Information is only for informational purpose. All specifications are subject to change without notice.

2

Document: Data sheetProduct: WBSize: DN 50 - DN �200 Issue: 7 Issue date: 2009-�2-22

Design dataSizes Flange drilling Face-to-face dimension Leakage rate

DN 50 - DN �200 EN �092 PN �0 DN 50 - DN 300: DIN 3202 K� DN 350 - DN �200: Stafsjö manufactoring std

EN �2266-�:2003 Rate A: no visually detectable leakage is allowed for duration of the test MSS SP-8�

Other sizes on request

Pressure tests

Pressure tests are performed with water at 20º C according to EN 12266-1:2003.Pressure for shell test: 1,5 times maximum allowable working pressure for open valve.Pressure for seat tightness test: 1,1 times maximum allowable differential pressure for closed valve.

Maximum working pressure body at 20°C Maximum differential pressure at 20°C

DN bar DN bar

50 - 300 �0 50 - 300 �0

350 - 400 6 350 - 400 6

450 - �000 4 450 - �000 4

�200 2 �200 2

Basic equipmentA. Valve Body

DN Material Type Max. temperature °C

50 - 600 Cast iron (A) GG25 200

700 -�200 Nodular iron (L) GGG50 200

Standard colour: epoxy colour, thickness 140-200µm, RAL 5015.

B. Gate

DN Material Type

50 - 300 Stainless steel AISI3�6L/EN�.4404/SS2348

350 -�200 Stainless steel AISI304/EN�.430�/SS2333

C. Sealing profile

Material Max. temperature °C

EPDM (E) �20

Nitril (N) �00

D. Box packing

Material pH Max. temperature °C

TwinPackTM (TY) 2-�3 260

3

Document: Data sheetProduct: WBSize: DN 50 - DN �200 Issue: 7 Issue date: 2009-�2-22

ActuatorsManual Automatic

Hand wheel�) (HW) Pneumatic cylinder (AC)

Hand lever2) 3) (HL) Electric motor (EM)

Chain wheel2) (CW) Hydraulic cylinder2) (MH)

Ratchet wrench2) (RW)

Bevel gear2) (BG)1) For recommended size, see page 5 column E.2) For recommended size, see separate data sheet.3) Differential pressures in preferred or reversed direction according to design data are not valid for hand lever (HL). Maximum differential pressure in preferred direction at 20°C for DN 50 - DN 200: 4 bar.

Pneumatic cylinder Electric motor – AUMA multi-turn

DN valve Size AC Maximum Force (kN) DN valve AUMA Attachment

50 - �50 �00 3,5 50 - �50 SA 07.� F�0/A

200 - 300 �60 9.0 200 - 250 SA 07.5 F�0/A

350 - 500 200 �4.� 300 - 600 SA �0.� F�0/A

600 250 22.� 700 - 900 SA �4.� F�4/A

700 - �000 320 36,2 �000 SA �4.5 F�4/A

�200 - - �200 SA �6.� F�6/A

The table above gives recommended cylinder sizes at normal operation with 5 bar air pressure. For other operating conditions, please contact Stafsjö or your local representative for advice.

Electric motors are mounted according to standard ISO 5210. The table above gives recommended motor sizes at normal operation. For other operating conditions, please contact Stafsjö or your local repre-sentative for advice.

The actuators are described in detail in separate data sheets. For actuators classified according to ATEX, please contact Stafsjö or your local representative.

AccessoriesKnife gate valve

Accessories Model Design

Mechanical limit switch Omron D4V AC�2 5A/250 V

Inductive limit switch ifm electronic IG-2008-ABOA/IG0006 2-wire, 20-250 V AC/DC

ifm electronic IG-3008-BPKG/IG540� 3-wire, �0-36 V DC PNP

Stem extension Short Pipe Length < �.5 m

Long Pipe Length > �.5 m

Pneumatic cylinder

Accessories Model Design

Solenoid valve Metal Work mono stable 5/2, series 70 �/4”

Metal Work mono stable 5/2, series 70 �/2”

Magnetic limit switch Elobau �02247 & �0224709 2-wire, 20-250 V AC/DC

Elobau �02290PE & �02290PE09 3-wire, �0-36 V DC PNP

The accessories are described in detail in separate data sheets. For accessories classified according to ATEX, please contact Stafsjö or your local representative.

4

1

2c

2

2b

2a

3

4

4b6

7

8c

8b

8a

8

9

10

10c

18

25

7g

7e

7f

7c

7d

13a

13b

13

16

4a

20b

20a

20

3a

3b

10a

14

10a

17

2821

20

Document: Data sheetProduct: WBSize: DN 50 - DN �200 Issue: 7 Issue date: 2009-�2-22

Part listPos Part Material (Name) Pos Part Material (Name)

� Hand Wheel Epoxy coatedØ 200 - Ø 315 Gjutjärn (GG25)> Ø 400 Gjutjärn (GG20)

8b Washer Stainless steel (A2)

8c Nut Stainless steel (A2)

9 Box packing* See equipment D

2 Yoke Steel (Q235), epoxy coated �0/a Valve body See equipment A

2a Bearing Bar brass (CuZn39Pb3) �0c Flange sealing* NBR

2b Slide Washer POM �3 Sealing profile* See equipment C

2c Bearing Bar brass (CuZn39Pb3) �3a Pin, long* Stainless Steel (304)

3 Stem Stainless Steel SS2320-02 �3b Pin, short* Stainless Steel (304)

4 Stem Nut Bar brass (CuZn39Pb3) �4 Guiding pads POM-C

4a Washer Stainless steel (A2) �6 Gate guard,Not for HW

Steel (Q235), epoxy coated

4b Bolt Stainless steel (A2)

6 Gate See equipment B �7 Gate clevis Stainless steel (SS2346)

7 Beam Steel (Q235), epoxy coated �8 Cylinder See data sheet

7c Bolt Stainless steel (A2) 20 Bolt Stainless steel (A2)

7d Washer Stainless steel (A2) 20a Washer Stainless steel (A2)

7e Washer Stainless steel (A2) 20b Nut Stainless steel (A2)

7f Nut Stainless steel (A2) 2� Locking pin Stainless steel (SS2343)

7g Bolt Stainless steel (A2) 25 Piston rod Stainless Steel (303)

8 Gland Ductile iron (GGG50), epoxy coated 28 Jam nut Stainless steel (SS2346)

8a PinnBolt Stainless steel (A2) * Recommended spare parts

5

DN A B C D E F G H J K L

50 50 43 90 86 200 59 299 44� ��7 629 227 5,5

65 65 46 �05 86 200 66 324 48� �3� 654 252 6,5

80 80 46 �20 86 200 88 346 5�9 �30 677 275 7,5

100 �00 52 �44 86 200 �0� 38� 574 �5� 7�2 3�0 9,5

125 �25 56 �69 86 250 ��2 42� 709 �77 752 350 �2

150 �50 56 �92 86 250 �30 464 8�7 20� 794 392 �4

200 200 60 256 �5� 3�5 �54 56� 888 265 8�8 483 27

250 250 68 307 �5� 3�5 �53 657 �034 335 9�4 579 38

300 300 78 354 �5� 3�5 2�2 753 ��80 372 �059 675 53

350 350 80 407 �87 400 245 880 �367 490 �228 783 8�

400 400 80 460 �87 400 246 977 �5�4 490 �375 880 �06

500 500 90 566 262 520 284 �225 �835 6�7 �706 ��06 �85

600 600 �00 682 262 520 34� �429 23�� 729 20�� �3�0 275

700 700 ��0 784 320 635 462,5 �647 2638 925 2643 �528 -

800 800 ��0 893 320 635 520 �857 2946 �040 2953 �738 -

900 900 ��0 999 320 635 574 2049 3239 ��48 3244 �929 -

1000 �000 ��0 ��04 320 635 63� 2238 3529 �262 3535 2�39 -

1200 �200 �50 �3�6 500 - 749 - - �490 4297 2597 -

ST AFSJÖST AFSJÖ ST AFSJÖK

GF

H

C A

D

E

J

L

K

GF

H

C A

D

E

J

L

BB

ST AFSJÖST AFSJÖ ST AFSJÖ

K

GF

H

C A

D

E

J

L

K

GF

H

C A

D

E

J

L

BB

Document: Data sheetProduct: WBSize: DN 50 - DN �200 Issue: 7 Issue date: 2009-�2-22

Main dimensionsDimensions (mm)

Weight* kg

* Weight valve including hand wheel (HW)Main dimensions are only for information. Contact Stafsjö for certified drawings.

One piece body: DN 50 - DN 600

Two piece body: DN 700 - DN �200

6

DN 80 - DN 200DN 250 DN 300

DN 350 DN 400DN 500-DN 600

DN �200DN 900-DN �000

DN 700-DN 800

DN 50 - DN 65

Document: Data sheetProduct: WBSize: DN 50 - DN �200 Issue: 7 Issue date: 2009-�2-22

EN �092 PN�0 (mm)

DN 350 400 500 600 700 800 900 1000 1200

Outside flange diameter 505 565 670 780 925 �040 ��48 �262 �490

Bolt circle diameter 460 5�5 620 725 840 950 �050 ��60 �380

Number of throughgoing bolts ( ) 6 6 8 8 �0 �0 �2 �2 �6

Number of tapped hole/side ( ) �0 �0 �2 �2 �4 �4 �6 �6 �6

Bolt size M20 M24 M24 M27 M27 M30 M33 M33 M36

Size of throughgoing holes in flange Ø22 Ø26 Ø26 Ø30 Ø30 Ø33 Ø36 Ø36 Ø39

Ⱐ��,25 ��,25 9 9 7,5 7,50 6,43 6,43 5,63

Screw lengths1) �8 20 24 24 26 26 26 26 401) Add the values with the thickness of the pipe flanges, the washers and the estimated thickness of the gasket.

Throughgoing holes

Tapped holes

12121010

Ø30Ø26Ø26Ø22Size of throughgoing holes in flangeB

2ß°

ß°

2ß°

ß°

Bolt size

Screw length

ß°

2ß°2ß°

ß°

15412710278

and the estimated thickness of the gasket.

1) Add the values in the table with the thickness of the pipe flanges, the washers

1) 2217Screw lengths 3025911,2511,25 9ß°

=Throughgoing holes=Tapped holes

Outside flange diam (mm) 780565505 670

600400350 500Size (DN)

B

725620

8M27

8M24

515460

6M24

6M20Bolt size

No. of tapped hole/side. ( )No. of throughgoing bolts ( )Bolt circle diameter (mm)

Flange drillingEN �092 PN�0 (mm)

DN 50 65 80 100 125 150 200 250 300

Outside flange diameter �65 �85 200 220 250 285 340 395 445

Bolt circle diameter �25 �45 �60 �80 2�0 240 295 350 400

Number of throughgoing bolts ( ) - - 4 4 4 4 4 6 4

Number of tapped hole/side ( ) 4 4 4 4 4 4 4 6 8

Bolt size M�6 M�6 M�6 M�6 M�6 M20 M20 M20 M20

Size of throughgoing holes in flange Ø�8 Ø�8 Ø�8 Ø�8 Ø�8 Ø22 Ø22 Ø22 Ø22

β° 45 45 22,5 22,5 22,5 22,5 22,5 �5 �5

Screw lengths1) �4 �6 �0 �2 �2 �4 �6 �8 �8

12121010

Ø30Ø26Ø26Ø22Size of throughgoing holes in flangeB

2ß°

ß°

2ß°

ß°

Bolt size

Screw length

ß°

2ß°2ß°

ß°

15412710278

and the estimated thickness of the gasket.

1) Add the values in the table with the thickness of the pipe flanges, the washers

1) 2217Screw lengths 3025911,2511,25 9ß°

=Throughgoing holes=Tapped holes

Outside flange diam (mm) 780565505 670

600400350 500Size (DN)

B

725620

8M27

8M24

515460

6M24

6M20Bolt size

No. of tapped hole/side. ( )No. of throughgoing bolts ( )Bolt circle diameter (mm)

12121010

Ø30Ø26Ø26Ø22Size of throughgoing holes in flangeB

2ß°

ß°

2ß°

ß°

Bolt size

Screw length

ß°

2ß°2ß°

ß°

15412710278

and the estimated thickness of the gasket.

1) Add the values in the table with the thickness of the pipe flanges, the washers

1) 2217Screw lengths 3025911,2511,25 9ß°

=Throughgoing holes=Tapped holes

Outside flange diam (mm) 780565505 670

600400350 500Size (DN)

B

725620

8M27

8M24

515460

6M24

6M20Bolt size

No. of tapped hole/side. ( )No. of throughgoing bolts ( )Bolt circle diameter (mm)

12121010

Ø30Ø26Ø26Ø22Size of throughgoing holes in flangeB

2ß°

ß°

2ß°

ß°

Bolt size

Screw length

ß°

2ß°2ß°

ß°

15412710278

and the estimated thickness of the gasket.

1) Add the values in the table with the thickness of the pipe flanges, the washers

1) 2217Screw lengths 3025911,2511,25 9ß°

=Throughgoing holes=Tapped holes

Outside flange diam (mm) 780565505 670

600400350 500Size (DN)

B

725620

8M27

8M24

515460

6M24

6M20Bolt size

No. of tapped hole/side. ( )No. of throughgoing bolts ( )Bolt circle diameter (mm)

12121010

Ø30Ø26Ø26Ø22Size of throughgoing holes in flangeB

2ß°

ß°

2ß°

ß°

Bolt size

Screw length

ß°

2ß°2ß°

ß°

15412710278

and the estimated thickness of the gasket.

1) Add the values in the table with the thickness of the pipe flanges, the washers

1) 2217Screw lengths 3025911,2511,25 9ß°

=Throughgoing holes=Tapped holes

Outside flange diam (mm) 780565505 670

600400350 500Size (DN)

B

725620

8M27

8M24

515460

6M24

6M20Bolt size

No. of tapped hole/side. ( )No. of throughgoing bolts ( )Bolt circle diameter (mm)

12121010

Ø30Ø26Ø26Ø22Size of throughgoing holes in flangeB

2ß°

ß°

2ß°

ß°

Bolt size

Screw length

ß°

2ß°2ß°

ß°

15412710278

and the estimated thickness of the gasket.

1) Add the values in the table with the thickness of the pipe flanges, the washers

1) 2217Screw lengths 3025911,2511,25 9ß°

=Throughgoing holes=Tapped holes

Outside flange diam (mm) 780565505 670

600400350 500Size (DN)

B

725620

8M27

8M24

515460

6M24

6M20Bolt size

No. of tapped hole/side. ( )No. of throughgoing bolts ( )Bolt circle diameter (mm)