Knife Gate Valve
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Knife Gate Valve

Knife gate valve is suitable for pipelines with suspended particles, fiber materials, pulp, sewage, coal slurry, ash cement mixture and other media. These media can be cut off by knife edge gate which can cut fiber materials. In fact, there is no chamber in the valve body. The gate rises and falls in the side guide groove, and is tightly pressed on the valve seat by the lug at the bottom. In order to achieve more tighter, the O-shaped sealing valve seat can be selected to realize bidirectional sealing.

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Product Description

China Knife Gate Valve Manufacturers and Suppliers with the Best Price

1.Introduction of Knife Gate Valve

Knife gate valve is suitable for pipelines with suspended particles, fiber materials, pulp, sewage, coal slurry, ash cement mixture and other media. These media can be cut off by knife edge gate which can cut fiber materials. In fact, there is no chamber in the valve body. The gate rises and falls in the side guide groove, and is tightly pressed on the valve seat by the lug at the bottom. In order to achieve more tighter, the O-shaped sealing valve seat can be selected to realize bidirectional sealing.


2.Specification of Knife gate valve

Type of Valve Knife Gate  Valve
DN DN50~DN600
PN(MPa) 1.0~1.6
Design Temperature Range ≤100℃
Applicable Medium Paper pulp, sewage, coal slurry, ash, slag water mixture  etc
Connection type: Flang and lug
Actuator type Manual drive, Pneumatic,Hydraulic or electric Actuator
Sealing Metal Hard Seal, Soft seal

Material of Knife gate valve

Spare Parts Material
Body Stainless steel, carbon steel, gray cast iron
Disc Stainless steel, carbon steel
Stem  Stainless Steel
Sealing Rubber, PTFE, stainless steel, cemented carbide

3.Advantages of knife gate valve:

1. Knife gate valve is composed of narrow valve body and sliding gate.
2. The valve plate with a sharp knife edge, which can separate or cut the solid particles in the fluid medium.
3. The surface polishing treatment of the valve plate enhances the penetration of the valve plate and effectively protects the service life of the packing and the valve seat.
4. The bottom of the valve body is equipped with a valve plate pressing device, which can safely press the valve plate support on the valve seat to ensure tight and effective closing.
5. Knife gate valves are widely used in papermaking, water treatment, electric power, chemical industry, steel, mining and other industries.

Knife Gate Valve

Knife Gate Valve

4.Application of Knife Gate Valve

Knife Gate Valve

MST Valve Co., Ltd. is a professional supplier of industrial valve, such as Butterfly valve, Ball valve, Check Valve and Gate valve.
Dedicated to strict quality control and thoughtful customer service, our experienced stall member are always available to discuss your requirements and ensure full customer satisfaction.
We have hydraulic test for every single piece of valves, life test for new developed valve under certain working pressure and temperature, which ensure reliable quality of each piece of valve.
With large stock of valve parts, we may delivery the valves in a very short time.
As one of OEM manufacturers of industrial valve, we provide OEM service and accept customized order as well.
Trust, quality and value, your partner in success.
We passed CE , API, ISO certification.


5.Packaging and Delivery


6. FAQ

1. Can i have a sample order for valve ?
A: Yes, we welcome sample order to test and check the quality, Mixed sample are accepted.
2. Do you have any MOQ limit for valve order ?
A: Low MOQ, 1 PC for sample checking is avaible.
3. Could you offer OEM service ?
A: Yes, OEM is availble.
4. How about the payment ?
A: We normally accept 30% deposit, and balance will be paid before shipping. L7C is OK
5. Whafs the delivery time of your butterfly valves?
A: For most of the sizes,DN50-DN600,we have stock of valve parts,it*s possible to deliver in 1-3 weeks,to nearest seaport Tianjin.
6. Whafs the warranty of your products?
A:We normally offer 12 months of warranty in service or 18 months since shipping date.
7. What is your products standardization?
A: GB/T12238-2008, JBfT 8527-1997, API 609,EN 593-1998, DIN 85003-3-1997


7. Contact Information





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