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Sell valve seat rubber

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  • Company Name :Tianjin Tanghai Valve Manufacturing Co., Ltd
  • Membership :Free member
  • Registrarion Date :2020. 06. 23
  • CountryRegion:China
  • Address:BinHai New District, Tianjin, China Tianjin Tianjin, China
  • Phone / Fax:86-022-58370228  /  86-022-58270228
  • Contact:Harry Li
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Valve seat sealing (TH-VSE)

The valve seat is a detachable surface part in the valve, used to support the fully closed position of the valve plate, and constitutes a sealing pair. The general valve seat diameter is the maximum flow diameter of the valve. For example, the valve seat material of butterfly valve is very wide, all kinds of rubber, plastic, metal materials can be used as the seat material, for example: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE and so on.

Introduction of valve seat/sealing

Elastic sealing material and small actuator thrust are used to obtain air bubble tight-grade sealing. Compression of the valve seat sealing stress causes the material to elastically deform and squeeze into the rough surface of the matching metal parts to block all leakage paths. The permeability of the material is the basis for a small amount of fluid leakage. The material is too soft, or cold deformation (creep) under load, you can add fillers such as glass fiber to make it hard. If it is used to make a thin sheet, it can still meet the requirements of use, and can eliminate cold deformation or permanent deformation.

The seal must be carefully fixed to prevent rupture and air leakage due to the pressure difference. It is a method to bond the soft valve seat to the metal parts, but it cannot completely solve the problem, because the bond will break and fail when subjected to thermal shock. A sufficiently large pressure drop will destroy the bonding material.

Spec Design and Manufacture Conform to EN 593、 API609 F
Quantity 1000
Package plywood case

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  • Sell valve seat rubber

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