Forged Valve, Forged Steel Gate Valve, Manual Valve 

 

Specifications:

QB Handwheel Non Rising Stem Knife Gate Valve WCB Material

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.  Rising Stem Knife Gate Valve is widely used and enjoy good reputation.

 

 

Introduction:

QB metal seated knife gate valve, QB Non Rising Stem WCB Material 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 Rising Stem 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 type valve is suitable for the medium of granule.

 

Features:

1, Seal by structural ceramics, can prevent solid grain scour to seal face, wear, ensure valve seal

lasting effective.

2, single seat design can effectively prevent the deposition of slag and jam.

3, single seat, one-way sealing.

4.the valve plate design is flat with blade shape, easy to cut materials or granular media, the valve

plate close to seal face, shave their the quality and slag particles which are stick to seal face and

valve plate , short type structure design makes the body more compact structure.
5. choose packing also adopt  the ptfe braid rope, seal depth design enough sealing and reliable.

7. the valves are suitable for power plant dry ash system, the warehouse pump material out conveying,

also can be used in mining, paper making, chemical industry etc of all kinds have worn slag, cinders,

and slag water mixture medium in pipelines as an opening and closing.Nominal pressure IS 1.0 MPa,

applicable temperature less than 80 °C.
8. the valve seal adopt double seal structure type, soft seal + metal seal, metal sealing layer effective

 protection soft sealing layer, increase the life of the seal; The valve body and cover adopt WCB steel

castings, filler/packing used high quality wear-resisting mixed Flexible

 

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

 

Photoes and Details