Cast Steel Wedge Gate Valve

Technical Requirement:
  1. Design & Manufacture: GB/T 12234
  2. Face-to-Face: GB/T 12221
  3. End Flanges: GB/T 9124 / HG/T 20592
  4. Inspection & Test: GB/T 13927 / JB/T 9092

Description

The Cast Steel Wedge Gate Valve is a flanged WCB carbon steel gate valve with an outside screw & yoke rising stem and flexible wedge. Hardfaced seats and a bolted bonnet make it a robust isolation valve for steam, oil, gas and other industrial media where cast iron is not permitted.

Technical Specifications:
  • Pressure Class: PN16 / PN25 / PN40 / PN64
  • Size Range: DN50 – DN600
  • Applicable Medium: Water, steam, oil, gas
  • Operating Temperature: -29°C to 425°C
Main Parts and Materials:
Parts NameMaterials
Body, BonnetCast Steel WCB
WedgeWCB + 13Cr / Stellite overlay
Seat13Cr / Hardfaced
Stem2Cr13
Packing / GasketFlexible Graphite / Spiral-wound
Key Product Features:
  1. Flexible Wedge: Compensates for seat distortion from pipe loads and temperature.
  2. Hardfaced Seats: Resist erosion and galling.
  3. OS&Y Rising Stem: Shows valve position; threads kept out of the medium.
  4. Backseat Function: Repacking possible under pressure.
  5. Full Bore: Low pressure drop when fully open.
Applications:

Ideal for Steam Lines, Petrochemical Plants, Power Generation, and Oil & Gas Piping. Specifically suited for high-temperature isolation duties.

Additional information

Standard

GB