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KNIFE GATE VALVE WB 12

KNIFE GATE VALVE WB 12
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Knife gate valve WB12 Data is only for informational purpose. All specifications are subject to change without notice.

Knife gate valve WB12 Stafsjö's knife gate valve WB12 is bi-directional tight and can therefore be installed into a pipe system independent of pressure direction. A square flanged valve body with integrated flange gaskets makes it easy to install and also allows end-of-pipe installations. WB12 has a full bore with no cavity which gives excellent flow characteristics, and this makes it suitable for fluids, sludge and liquids with solids in suspensions such as water, sewage and bio mass. WB12 has a robust epoxy coated valve body in cast iron. Its extended face-to-face and square flanges...

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Design data Sizes Face-to-face dimension ATEX Design Stafsjö manufacturing standard ATEX 94/ 9/EG II cat 3 G/D for zone 2 and 22 on request Other sizes on request Leakage rate Pressure tests EN 12266-1:2003 rate A: No visually detectable leakage is allowed for duration of the test Pressure tests are performed with water at 20º C according to EN 12266-1:2003. Pressure shell test: 1,5 times maximum allowable working pressure for open valve. Pressure seat tightness test: 1,1 times maximum allowable differential pressure for closed valve. Maximum working pressure body at 20 °C Maximum...

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Accessories Knife gate valve Accessories Mechanical limit switch (MLS) Inductive limit switch Solenoid valve Parker Namur valves for EC 100 - EC 160 G1/4", Mono stable 5/2, Namur series VDI/VDE 3845, IP 65, 24 V DC/110 V AC/220 V AC Parker Namur valves for EC 200 - EC 320 G1/2", Mono stable 5/2, Namur series VDI/VDE 3845, IP 65, 24 V DC/110 V AC/220 V AC Stem extension Pneumatic cylinder Magnetic limit switch The accessories are described in separate data sheets. For advice and information on other accessories or on ATEX-classified ones, please contact Stafsjö or your local representative....

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Material (Name) Material (Name) Hand Weel Epoxy coated cast iron Ø 200 - Ø 315 (EN-JL1040/GG25) Steel (EN 1.0038/SS 1312), epoxy coated Slide washer Valve body Flange sealing Nitrile Sealing profile Gate guard, not Steel (EN 1.0038/SS 1312), for HW, HL epoxy coated Gate clevis Steel (EN 1.0038/SS 1312), epoxy coated Locking pins Carbon steel (ASTM A216/WCC), epoxy coated Recommended spare parts

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Main dimensions Dimensions (mm) DN Weight in kg for valve equipped with hand wheel. Main dimensions are only for information. Contact Stafsjö for certified drawings. 5)

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Further information is available on www.stafsjo.com Globally active. Locally represented. AFRICA South Africa: Valve & Automation (Pty) Ltd, ASIA China: EBRO ARMATUREN (BEIJING) CO., LTD, India: Ebro Armaturen India Pvt. Ltd, Indonesia: Contromatic Prima Mandiri PT, Japan: SKC Co. Ltd, Malaysia: Precision Control SdnBnd, Philippines: EBRO ARMATUREN (PHILIPPINES) INC., Thailand: EBRO VALVES (Trading) Co. Ltd., Vietnam: EBRO VALVES (Thailand) Co., Ltd, AUSTRALIA WITH OCEANIA Australia: EBRO ARMATUREN Pacific PTY. LTD, New Zeeland: H.J.Asmuss&Co.Ltd, EUROPE Austria: EBRO ARMATUREN GmbH,...

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