Stop Check Valve
Stop Check Valve
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- DN50 to DN600
- Pressure Class
- PN10 / Class 150 to PN420 / Class 420
- Standards
- API 6D, API 602, ASME B16.34, GB/T 12235, ASME B16.10, GB/T 12221, API 598, GB/T 13927, GB/T 12224, Flange Standard: ASME B16.5, GB/T 9113, Butt Weld Standard: ASME B16.25, GB/T 12224, Fire Safe: API 607, Pressure-Temperature Rating: ASME B16.34, GB/T 12224
- End connection
- ASME B16.5 flange · GB/T 9113 flange · Butt weld ASME B16.25 / GB/T 12224
Available sizes
Standard DN sizes covered by this product. Confirmed at quote.
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- body
- disc and seat sealing surface
Features
- Dual function: operates as a stop valve when stem is lowered and as a check valve when stem is raised
- Stem and disc are not mechanically fixed, enabling independent check valve action
- Disc and seat sealing surfaces are hard-faced with iron base alloy or Stellite cobalt base carbide
- Sealing surface provides wear resistance, high-temperature resistance, corrosion resistance, and extended service life
- Lower disc-to-seat friction compared to gate valve, improving wear resistance
- Reduces installation cost and space on lines requiring both stop and check functions
- Size range NPS 2" - 24" (DN50-DN600)
- Pressure rating Class 150-420 / PN10-420
- Temperature range -60 °C to +538 °C
Description
A multi-purpose cast valve that functions as both a stop valve and a check valve, with a structure similar to a globe valve in which the stem and disc are not mechanically fixed to one another. When the stem is lowered the disc is pressed onto the seat acting as a stop valve; when the stem is raised the valve operates as a check valve. The disc-to-seat friction is lower than that of a gate valve, providing improved wear resistance.
Available pressure classes
Pressure classes this product is rated to.