Nominal Diameter: DN50～1200mm 

Pressure Range: PN10～160MPa 

Working Temperature: -29°C to +600°C 

Body Material: Carbon steel, Stainless steel, Alloy steel 

Application: Tap water, sewage, construction, petroleum, chemical, food, pharmaceutical, light textile, power, shipbuilding, metallurgy, energy systems, etc.

Design Specifications

• Design Standard: GB/T 12234
• Face-to-Face Dimensions: GB/T 12221
• Connection Standard: GB/T 9113, JB/T 79, HG/T 20592
• Pressure Test: GB/T 13927, JB/T 9092
• Pressure-Temperature Rating: GB/T 12224

Product Features

1. The gate has two sealing surfaces. The sealing surfaces form a wedge shape, and the wedge angle varies with valve parameters, usually 5°.
2. The sealing principle of the wedge gate valve relies on the tight fit of the two sealing surfaces of the wedge gate and the two sealing surfaces of the valve body when wedged in, thereby achieving sealing performance.
3. According to the different ways the stem drives the gate to open and close, wedge gate valves can be divided into rising stem gate valves and non-rising stem gate valves (rotating stem gate valves).
4. According to the different structural forms of the gate, wedge gate valves can be divided into flexible gate gate valves and rigid gate gate valves.
5. The valve body is cast, the body and bonnet are bolted, the middle flange is sealed with a spiral wound gasket, and a metal ring connection can also be used if the customer has special requirements.
6. Smooth passage, small flow coefficient. The sealing surface is subjected to little scouring and erosion by the medium.
7. The sealing surfaces are made of alloy steel or hard alloy, providing good wear resistance and anti-scoring performance.
8. Flexible graphite packing is adopted, ensuring reliable sealing and light, flexible operation.
9. The flow direction of the medium is unrestricted, causing no turbulence and no pressure drop.
10. Simple shape, short face-to-face length, good manufacturability, and a wide range of applications.