Knife gate valve WB & WB11

Knife gate valve
WB & WB11

Semi lug performance knife gate valves in nodular iron.

Available size range:

DN 50 - DN 1600 (2" - 64")

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Product information

About WB & WB11

Stafsjö’s WB and WB11 knife gate valve offers superior flow characteristics and bi-directional zero leakage shut-off. It is suitable for fluids such as water, sludge, bio mass and light slurry.

These valves are modular designed and it can easily be customized in materials, with actuators and related automation accessories to different process conditions. The WB11 is supplied with a robust one piece valve body in nodular iron up to DN 300 (12″). From DN 350 up to DN 1600 (14″ – 64″) it is the WB.

Other versions are fully lugged WB14 in DN 50 – DN 600 (2″ – 24″) and WB12 in DN 150 – DN 200 (6″ – 8″) which has a square fully flanged valve body. The WB14E is a high performance stainless steel version.

Download the product data sheet for additional technical information.


Shut-off technique


Valve seat material




Connection type

Wafer/Semi lugged

Valve body material

Nodular iron



Food and Beverage



Water treatment

Product features

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