QB Cast Iron Knife Gate Valve for Petrochemical 
1. Size: DN50-DN400
2. Pressure: 1.0-1.6MPa
3. Material: SS304
4. Chemical

 

Specifications:

QB Cast Iron Knife Gate Valve for Petrochemical          

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 Type API Knife Gate Valve)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 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 API knife gate valve is suitable for the medium of granule.

Main Spare Parts and Materials

 

No	Name	Material
1	Body	Carbon Steel:WCB,WCC,WC1~WC5,C5~C12A105,CA12,CA15
		Stainless steel:CF3,CF8,CF3M,CF8M,304,316,314L,316L
2	Disc	2CR13,304,304L,316,316L
3	Stem	2CR13,304,304L,316,316L
4	Packing	PTFE
5	Yoke	Q235A,304,316,314L,316L,904
6	Bolt	201
7	Nut	201
8	Bearing	ZChSnSB10-6
9	Handwheel	Malleable Cast Iron

 

Drawing

Drawing

Machining Process

Package and Delivery 

Certificates