Cast Steel Lift Check Valve

Technical Requirement:
  1. Design & Manufacture: GB/T 12235 / GB/T 12236
  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 Lift Check Valve is a flanged non-return valve in which a guided disc lifts off the seat with forward flow and drops back to seal when flow stops or reverses. Its WCB steel body and hardfaced trim suit steam, oil and high-pressure water lines, with fast, tight closure that helps protect pumps and equipment.

Technical Specifications:
  • Pressure Class: PN16 / PN25 / PN40 / PN64
  • Size Range: DN15 – DN200
  • Applicable Medium: Water, steam, oil, gas
  • Operating Temperature: -29°C to 425°C
Main Parts and Materials:
Parts NameMaterials
Body, CoverCast Steel WCB
DiscWCB + 13Cr / Stellite overlay
Seat13Cr / Hardfaced
GasketSpiral-wound SS + Graphite
Cover Bolts35CrMo / 25#
Key Product Features:
  1. Automatic Operation: Opens and closes by the medium itself.
  2. Guided Disc: Straight lift motion gives fast, tight closing.
  3. Hardfaced Seating: Long life in steam and high-temperature service.
  4. Bolted Cover: Easy inspection and maintenance.
  5. Horizontal Installation: Designed for horizontal pipelines (cover up).
Applications:

Ideal for Steam Systems, Boiler Feed Lines, Petrochemical Plants, and Pump Discharge. Specifically suited for preventing backflow in high-pressure steel pipelines.

Additional information

Standard

GB