The sealing principle of the wedge gate valve is achieved by the tight combination of the two sealing surfaces on the wedge gate plate and the two sealing surfaces on the valve body when they are wedged together. The purpose of using a wedge gate is to increase the auxiliary sealing load so that the metal-sealed wedge gate valve can seal both high and low medium pressures. When closing, rotate the valve stem clockwise to make the sealing surface of the gate valve and the valve body sealing surface close to achieve a seal. However, the inlet-end sealing specific pressure generated by the wedge effect of the metal-sealed wedge gate valve is often insufficient to achieve the inlet-end seal due to the force of the medium. Therefore, the metal-sealed wedge gate valve is a single-sided forced seal.
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Guarantee |
12 months from date of shipment or Negotiable |
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MOQ |
1 Set |
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Sample |
Available |
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Color |
Customer required or manufacturer default |
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Packing |
Plastic bag wrapped inside, seaworthy wooden case outside |
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Certificate |
API6D, CE, TUV, ISO9001, ISO14001, ISO45001, Mill Test Certificate |
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Country of Origin |
Henan, China |
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HS Code |
848180 (universal), 8481804090 (China) |
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Port |
Shanghai or Ningbo |
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Payment Terms |
T/T, L/C, Western Union |
- Occasions where wedge gate valves are suitable
Among various types of valves, gate valves are the most widely used. It is generally only suitable for fully opening or fully closing, and cannot be used for adjustment and throttling. Wedge gate valves are generally used in situations where there are no strict requirements on the external dimensions of the valve and the operating conditions are relatively harsh. For example, the working medium of high temperature and high pressure requires the closing parts to ensure long-term sealing, etc. Generally, it is recommended when the usage conditions or requirements require reliable sealing performance, high pressure, high pressure cutoff (large pressure difference), low pressure cutoff (small pressure difference), low noise, cavitation and vaporization phenomena, high temperature medium, and low temperature (cryogenic). Wedge gate valve. Such as electric power industry, petroleum refining, petrochemical industry, offshore oil, water supply engineering and sewage treatment engineering in urban construction, chemical industry and other fields.
- Cast Steel Wedge Gate Valve
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