Knife gate valve MV

Knife gate valve

Uni-directional knife gate valve for on/off or control on dry media or liquids.

Available size range:

DN 50 - DN 1600 (2” - 64”).

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Product information

About MV

Stafsjö’s knife gate valve MV can be used within a wide range of applications, on both dry media and liquids such as pulp stock up to 7% concentrations, sludge, slurry, biomass, water, ash, granulate and different kinds of waste.

The MV valve is modular designed and it can easily be customized in materials, with actuators and related automation accessories to different process conditions. As standard it is available in a stainless steel version and one in nodular iron, but it can also be supplied in a range of high alloy materials such as Duplex and 254 SMO. Stafsjö’s retainer ring system offers great flexibility and several seat material options. Up to DN 800 the MV holds a one piece valve body and from DN 900 it features a rigid two piece version.

Stafsjö’s gland box system with TwinPack braids ensures that no media reaches the surrounding environment. It can also be reinforced with a box bottom scraper or with a double gland for the most demanding applications.

Download the product data sheet for additional technical information.


Shut-off technique


Valve seat material







PTFE FDA/EC 1935/2004

Connection type

Wafer/Semi lugged

Valve body material

254 SMO equivalent


Nodular iron

Stainless steel




Food and Beverage




Pulp and Paper


Water treatment

Product features

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