QB Worm Gear Valve Knife Type
1. Size: DN50-DN400
2. Pressure: 1.0Mpa-1.6MPa
3. Material: SS304, 316,316L
4. Worm Gear Valve

Specifications:

QB Worm Gear Valve Knife Type

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. QB Worm Gear Valve Knife Type is widely used and enjoy good reputation.

Introduction:

QB metal seated  cast steel knife gate valve ( QB Worm Gear Valve Knife Type)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 cast steel 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 worm gear gate valve' 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 Worm Gear Valve Knife Type is suitable for the medium of granule.