Slow-closing Check Valve
Specifications
Confirmed at quote- Size Range
- DN15 to DN400
- Pressure Class
- PN16 to PN420
- Standards
- GB/T12235, API 594, GB/T12221, ASME B16.10, GB/T13927, API 598, GB/T12224, ASME B16.34, GB/T9113 (Flange Standard), ASME B16.5 (Flange Standard), GB/T12224 (Butt Weld Standard), ASME B16.25 (Butt Weld Standard), API 607 (Fire Safe)
- End connection
- GB/T9113 flange · ASME B16.5 flange · Butt weld ASME B16.25 · Butt weld GB/T12224
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
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.
Available pressure classes
Pressure classes this product is rated to.
Smart find
Searches our product catalogue using your spec. Drop a PDF (or multiple PDFs at once), paste a description or a part number and we'll find the closest matches for each. Anything we can't match goes to your RFQ as a custom enquiry for our team to source.Related Check Valves
Check ValveREF 6API Check Valve
- Type
- Check Valve
- Size
- NPS 2"-NPS 24"
- Pressure
- Class 150 / Class 2500
- Body
- ASTM A216 WCB / ASTM A351 CF8 / ASTM A351 CF8M
- Standards
- API 6D, BS 1868
Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.
Check ValveREF 7Lug Type Dual Plate Check Valve
- Type
- Check Valve
- Size
- —
- Pressure
- —
- Body
- —
- Standards
- API VALVE, DIN VALVE
Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.
Check ValveREF 8Wafer Dula Plate Check Valve
- Type
- Check Valve
- Size
- —
- Pressure
- —
- Body
- —
- Standards
- —
Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.
Check ValveREF 19Forged Steel Check Valve
- Type
- Check Valve
- Size
- NPS 1/2"-NPS 2"
- Pressure
- Class 150 / Class 2500
- Body
- A105N / A182 F22 / A182 F304(L) / A182 F316(L)
- Standards
- API standards
Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.