QB Flange Knife Gate Valve Pneumatic Operated
1. Size: DN50-DN400
2. Pressure: 1.0-1.6MPa
3. Material: 304
4. Flange Vave

Specifications:

QB Flange Knife Gate Valve Pneumatic Operated

1.  Size: DN50-DN400
2.  Pressure: 1.0Mpa-1.6MPa
3   Material:  Cast Iron, Stainless steel 304, 316, 316L

4.  Material for Disc:  2Cr13, 201, 304, 316, 316L

5.  Seat Ring:  PTFE, 2Cr13, stainless steel, hard alloy

6.  Packing:  Graphite, PTFE

7.  Connection:  Wafer, Flange, Plum

8.  Application:  sewage, powder, paper pulp, ore pulp, sugar

9.  API Knife Gate Valve for Chemicals for Ore Plup is widely used and enjoy good reputation.

Introduction:

QB metal seated  cast steel knife gate valve ( QB Flange Knife Gate Valve Pneumatic Operated ) is a new type knife gate valve whose seat is fixed up on the body. The metal seat ring moves ladderlike with body, and moves concavo-convex with seat. QB stainless steel pneumatic flange knife gate valve is with O type seat ring is set between the metal seat ring and the seat, and a seat ring is at the joint of the seat and the body. Some dollops which are casted together with the body at the bottom, on the gate there also is bevel to fit the dollops. When the gate closes to the bottom of the body, the dollops extrude the gate to impinge the metal seat. This structure breaks the shortage of can’t be taking pressure test for the metal seat, evidently improve the effect of pressurizing. The QB Flange Knife Gate Valve Pneumatic Operated is suitable for the medium of granule.