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Pneumatic Bidirectional Seal Knife Gate Valves

YFL Pneumatic Bidirectional Seal Knife gate valves are applicable for coal in power plant, sewage in wastewater treatment, paper pulp in paper making, food waste in slaughter plants etc.

  • Face to FaceMSS SP-81
  • Operationhandwheel, Gear, Electric, Pneumatic, Hydraulic, Electric-hydraulic
  • SeatNBR, EPDM
  • Stem304, 316, 316L, 310, 2205, F51, F53
  • BodyGGG40, WCB, CF8, CF8M, 904L, 2205
  • PressurePN6, PN10, PN16, 150lbs, JIS 10K
  • SizeDN50-DN3000, 2''-120''
  • Connection EndsWafer, Lug, Flange
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YFL pneumatic bidirectional seal knife gate valve has U-shape flexible seat at the bottom of the body with groove. When the valve is closed, the bottom of the knife edge contact with the seat and then press the seat into the groove in the body to achieve excellent sealing performance. When the valve is open, the knife edge departs from the bottom edge of the seat and the seat will bounce to be with same height as the groove so that the medium won't settle and accumulate at the groove in the valve cavity.Then there will be no blocking and no residue in the valve cavity. And the pipe will be easy for cleaning to make sure excellent sealing performance to avoid leakage when valve is closed.
 
Why Choose YFL?

1． Experienced in providing best solutions according to various sever working conditions to solve problems
2． Strict quality control from ceramic raw materials production, ceramic parts machining to pressure test and function test
3． Professional technical support and fast response trouble shooting
4． Approved & Registered vendor of Glencore & Umicore
5． Successful cases and reference list available
6． Customizable, Flexible,  Short delivery time

Testimonials from Glencore in Mining industry


"We are very happy with the results so far, and the valves seem to be top quality.
You must understand that this factory has some of the world's toughest conditions with regards to abrasive and corrosive solutions. We dissolve metals and most products and suppliers we tested in our applications failed. "  


YFL for 誉丰利 means benefiting from reputation.

We cast brand and forge reputation by quality and service.

We focus on your satisfaction and our responsibility.

Let‘s solve problems and create values for your projects.


Bidirectional seal knife gate valves

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