Resilient Seat Knife Gate Valve

The new product elastic compensation valve seat knife gate valve specifically relates to the valve manufacturing field, including the valve body. The outlet position of the valve body is provided with a pressure sleeve, one side of the pressure sleeve is provided with a valve seat, between the valve seat and the pressure sleeve is provided with a spring, between the valve seat and the valve body is provided with an O-ring, one side of the valve seat is provided with a wedge, and between the wedge and the valve seat is provided with a ram, The top of the valve body is connected with the gate plate with a filler. The utility model is provided with a valve seat, a wedge block and a gate, and the rotating hand wheel drives the position of the gate to move down, which can squeeze the valve seat to drive the spring to shrink when the gate valve is closed. Then, under the spring resilience, the contact position between the valve seat and the gate can be automatically adjusted to achieve better sealing effect, which avoids the excessive wear of the gate when the gate valve and the valve seat move relative to each other, Keep good sealing effect continuously.

Technical Specification
Size Ranges: 2" to 60"- 50mm to 1500mm (Larger sizes upon request) 
Pressure Ratings: ANSI 150#, PN10, PN16 
Materials: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel, Alloy Steel, Duplex steel
Operation: Handwheel, Pneumatic, Electric, Chainwheel. Lever
Seat: EPDM, Viton, Metal, PTFE, NBR
Temperature Range: -29~150Degree C
Uni- or Bi-direction
Bolted Bonnet
Ends Connections: RF

Standards compliance
Design and Manufacture: GB/T12237
Face to face(end to end): GB/T15188.2
Flanged connection: ANSI B16.5, GB/T 9113
Test and inspection: API 598, GB/T 13927
Optional top flanges to ISO 5211