Stafsjo MV Positive Shutoff Knife Gate Valve

Stafsjo‘s MV knife gate valve has a bevel-edge gate that effectively cuts through different media. In closed position the gate is pushed onto the seat which gives a tight and reliable sealing. This special shut-off technique makes the MV valve suitable for both fluids and dry media such as pulp, sludge, biomass, powder and different kinds of waste.

It comes standard with a stainless steel or ductile iron body, stainless steel gate, and EPDM seat. Like other Stafsjo valves, the MV comes with Stafsjo‘s box packing TwinPack™, to secure that no media reaches surrounding environment. The gland box can also be supplied with a box bottom scraper or with double gland for the most demanding applications. The top works consist of aluminum beams and stainless steel tie rods, providing good corrosion resistance and a stable operation.

Key Specifications

  • Available in 2" to 56" sizes
  • Positive shutoff for fluids, bulk solids, and suspensions of up to 5% concentration
  • 316 stainless steel or ductile iron body, 316L gate, EPDM seat standard. Optional materials available

Specifications, Manuals, and Supporting Literature

Click the file icon to view the file online, or right-click on the file icon and select "Save Target As..." to download the file to your computer for later viewing.
Tip: If you want to print a large file, download it to your PC first.


Subscribe to the Lesman Instrument Company YouTube channel.Lesman Instrument Company on YouTube

Video is a great way to learn about instruments and technology, and it's available whenever you need it. Watch step-by-step instructions on how to configure a transmitter, tune a controller, or troubleshoot a safety valve. We'll post videos we create, and those our manufacturer partners share with us, so you don't have to look in multiple places to find the video training you need.

Subscribe to Lesman's YouTube channel, and you'll get email notifications as soon as we add new training videos and webinars.