Swing Slow-closing Extraction Check Valve
Automatic valve for unidirectional flow control and backflow prevention. The disc opens under medium flow and closes rapidly by self-weight or auxiliary force when flow stops or reverses.
| Size Range | 2″~60″ (DN50~DN1500) |
|---|---|
| Pressure Rating | Class 150~4500 (PN16~PN760) |
| Body Material | Carbon steel, alloy steel, stainless steel, duplex steel, etc. |
| Connection Type | RF, BW, RTJ, etc. |
Frequently Asked Questions
The valve opens automatically with forward medium flow. When flow stops or reverses, the disc closes by self-weight or auxiliary force to limit backflow.
The published range is 2″~60″ (DN50~DN1500) and Class 150~4500 (PN16~PN760). Final selection should be checked against the project duty.
Available material options listed for this product include carbon steel, alloy steel, stainless steel and duplex steel, subject to the project specification.
RF, BW and RTJ connections are listed. The required end connection should be confirmed with the pipeline standard and rating.
Applications include water supply and drainage, water conservancy, power and petrochemical systems where automatic backflow prevention is required.
Product Overview
The Vornet Swing Slow-closing Extraction Check Valve is an automatic valve for unidirectional flow control. It is designed to prevent medium backflow in water, power and process piping systems.
The disc opens under forward flow and closes rapidly by self-weight or auxiliary force when flow stops or reverses. This operating principle supports controlled closure without a separate powered actuator.
Size, pressure class, body material and end connection can be configured against the operating medium, pump conditions and applicable piping standard.
- Automatic Backflow Prevention: Opens with forward flow and closes when flow stops or reverses.
- Slow-closing Action: Self-weight or auxiliary force supports controlled disc closure.
- Broad Pressure Range: Available from Class 150 to Class 4500, subject to engineering review.
- Industrial Service: Listed for water, power, water conservancy and petrochemical applications.
Related Valve Selection Guides
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