Knife gate valve SLV

Knife gate valve

Compact push through slurry knife gate valve

Available size range:

DN 50 - DN 900 (2” - 36”).

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Product information

About SLV

Stafsjö’s SLV is a push through slurry knife gate valve with superior flow characteristics, offering reliable and bi-directional shut-off performance in abrasive and demanding mineral processing applications.

The SLV valve is modular designed and it can easily be customized with actuators and related automation accessories to different process conditions. The valve is also available with mechanical lock out. As standard, the SLV is supplied with a robust and precision machined nodular iron valve body and strong duplex stainless steel gate, which is also special grinded with purpose of reducing the friction when it cycles through the valve’s rubber seats.  

In addition to this slurry valve Stafsjö also offers a fully flanged slurry valve, the SLF, and two high pressure versions, the SLH and SLX, available in pressure rating up to 50 bar.

Download the product data sheet for additional technical information.


Shut-off technique



Valve seat material


Natural rubber

Connection type

Wafer/Semi lugged

Valve body material

Nodular iron





Product features

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