Slow-closing Check Valve
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- DN15 to DN400
- Pressure Class
- PN16 to PN420
- End connection
- Flanged · Butt weld
- Operating temperature
- -29°C to 538°C
Standards
- Design & manufacture
- GB/T 12235, API 594, API 607
- Inspection & test
- GB/T 13927, API 598
- Fire safe
- API 607
- Face to face
- GB/T 12221, ASME B16.10
- Flange & end dimension
- GB/T 9113, ASME B16.5
- Butt weld end
- GB/T 12224, ASME B16.25
- Materials
- GB/T 12224, ASME B16.34
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- Body
Operating media
Typical applications
- water supply pipelines
- oil pipelines
- gas pipelines
- pump protection systems
- auxiliary pressure supply systems
Approvals
Features
- Automatic disc opening and closing actuated by medium pressure without external control
- Slow-closing design reduces impact sound and water hammer effect
- Prevents backflow of medium and reverse rotation of pumps and drive motors
- Suitable for pipelines where auxiliary system pressure may rise above system pressure
- Compact structure
Description
A slow-closing check valve that opens and closes the disc automatically in response to medium flow, designed to prevent backflow. The valve is suitable for preventing reverse rotation of pumps and drive motors, and for releasing medium in containers. It may also be used in pipelines supplying supplementary pressure to auxiliary systems where pressure may exceed system pressure.
Selection notes
This check valve is a slow-closing pattern, supplied for flanged and butt weld installation.
Sizes run DN15 to DN400, in PN16 to PN420.
The body is offered in Carbon Steel, Stainless Steel and Alloy Steel, so the grade can be matched to the service rather than the other way round.
Stated service media include water, oil and gas.
It is catalogued for Water & Wastewater and Oil & Gas.
Working temperature is -29°C to 538°C.
Built to GB/T12235, API 594, API 607, GB/T12221 and ASME B16.10.
Available pressure classes
Pressure classes this product is rated to.
Used in
Related guides
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