Knife gate valves

Knife gate valves comprise a knife-formed closing element that moves in the valve seat when the stem is being rotated.

There are two alternative seat structures. The bottom of the valve is either closed – in this case, the closing device closes against the bottom of the seat – or open, in which case the closing device passes through the bottom.

The through-passing model is also referred to as the guillotine valve.

Applications in the process industry

The knife gate valve is mainly designed for relatively low pressures and temperatures. Typical medias are liquids, masses and solid, powdery agents.

In addition to the manual operation possibility, the valves can be equipped with pneumatic actuators.


  • DN 50-1200
  • PN 10-16
  • Laippojen väliin
  • Runko GG-25, GGG 40, AISI 316Luisti AISI 304, AISI 316
  • Tiiviste NBR, EPDM, PTFE

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