Pneumatic knife-shaped gate valve

Short Description:

The pneumatic knife gate valve has the advantages of simple and compact structure, reasonable design, light material saving, reliable sealing, light and flexible operation, small volume, smooth channel, small flow resistance, light weight, easy installation, easy disassembly and other advantages. It can work normally under the working pressure of 1.0mpa-2.5mpa and the service temperature of – 29-650 ℃. The knife gate valve has shear function, which can scrape off the adhesion on the sealing surface and automatically remove the impurities. The stainless steel gate valve can prevent the seal leakage caused by corrosion.

Product Detail


Product Tags

DN: DN50-DN1200
PN: PN1.0MPa/PN1.6MPa 150LB
Connection type: Wafer, Flange, Lug
Operation: Hand wheel, bevel gear, chain wheel, Pneumatic, Electric
Medium: Water, Grout, Dust particle
Temperature: -29℃≤T≤200℃
Standard: JB/T8691
Face to face: GB/T12221-2005 GB/T15188.2-94
Flange End: JB/T79.1 HG/T20592 ASME B16.5
Testing and inspection: GB/T13927 API598

Structural features:

The valve has the advantages of light switch, reliable sealing, good elastic memory and long service life. It can be widely used in tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electric power, ship, metallurgy, energy system and other body pipelines as regulating and intercepting device.

Features of knife gate valve:
1. Ultra short structure length, material saving, can greatly reduce the overall weight of the pipeline system.
2. It can effectively support the strength of the pipeline and reduce the possibility of pipeline vibration.
3. Using austenitic stainless steel, the corrosion resistance is greatly improved, which can effectively prevent the sealing leakage caused by the corrosion of the ram.
4. Flexible PTFE is used as the upper sealing packing, which is reliable in sealing and light and flexible in operation.
5. The gate has the function of knife switch, which can effectively cut off all kinds of sundries in the medium.
6. If the hard sealing stainless steel material is used and the valve disc is spray welded, the requirements of temperature and pressure of the valve can be well expanded.

Advantages of gate valve:
1. The fluid resistance is small, and the sealing surface is less eroded and eroded by the medium.
2. It is easy to open and close.
3. The flow direction of the medium is not limited, the flow is not disturbed and the pressure is not reduced.
4. Durable and easy to use.
5. The utility model has the advantages of simple shape, short structure length and wide application range.


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