MOQ: | 1 |
Price: | USD12 |
Delivery Period: | 15-20 work days |
Payment Method: | T/T |
Supply Capacity: | 100-1000 |
A Check Valve is an automatic, one-directional flow control device that prevents backflow in piping systems. These valves operate without external control, using system pressure to open and close, ensuring fluid flows in only one direction while protecting equipment from reverse flow damage.
✔ Automatic Operation - Self-actuating with flow pressure
✔ Backflow Prevention - Protects pumps and compressors
✔ Low Pressure Drop - Optimized flow path designs
✔ Multiple Configurations - Various styles for different applications
✔ Maintenance-Free - No external controls or power required
Parameter | Description | Technical Specifications |
---|---|---|
Valve Type | Swing, Lift, Dual-Plate, Ball, Tilting Disc, Stop-Check | Based on application requirements |
Size Range | Connection dimensions | ½" to 72" (DN15 to DN1800) |
Pressure Rating | Maximum working pressure | 150-2500 psi (10-172 bar) |
Temperature Range | Operational limits | -320°F to 1500°F (-196°C to 816°C) |
Cracking Pressure | Minimum opening pressure | 0.5-15 psi (0.03-1 bar) |
Flow Capacity (Cv) | Flow coefficient rating | 5-10,000 (varies by size/type) |
Body Material | Primary construction material | Cast Iron, Carbon Steel, Stainless |
Seat Material | Sealing surface composition | Metal, EPDM, FKM, PTFE |
End Connections | Interface types | Flanged, Threaded, Wafer, Butt Weld |
Closure Speed | Response time to close | Instant to 5 seconds |
Certifications | Industry standards | API, ASME, ISO, PED |
Optional Features | Special configurations | Spring-assisted, Silent, Non-slam |
✔ Water Systems - Pump discharge protection
✔ Oil & Gas - Pipeline backflow prevention
✔ Chemical Processing - Corrosive fluid control
✔ HVAC - Chiller and boiler systems
✔ Power Generation - Condensate return lines
✔ Marine - Ballast and bilge systems
Equipment Protection - Prevents reverse rotation damage
System Safety - Eliminates contamination risks
Energy Efficient - Minimal pressure loss
Versatile Installation - Multiple mounting orientations
Long Service Life - Robust construction materials
Standard Features:
Corrosion-resistant internals
Positive sealing mechanism
Flow direction markings
Maintenance access points (select models)
Heavy-duty hinge pins (swing types)
Application | Recommended Type | Key Advantage |
---|---|---|
High-Pressure Steam | Nozzle Check Valve | Fast closure prevents water hammer |
Wastewater Systems | Dual-Plate Check | Compact design, easy maintenance |
Chemical Processing | PTFE-Lined Check | Superior corrosion resistance |
Pump Discharge | Swing Check | Low cracking pressure |
Vertical Flow | Lift Check | Reliable operation in any orientation |
Would you like:
Pressure drop calculations for specific models?
Material compatibility charts?
Installation orientation guidelines?
Water hammer prevention solutions?
Custom configuration options?
MOQ: | 1 |
Price: | USD12 |
Delivery Period: | 15-20 work days |
Payment Method: | T/T |
Supply Capacity: | 100-1000 |
A Check Valve is an automatic, one-directional flow control device that prevents backflow in piping systems. These valves operate without external control, using system pressure to open and close, ensuring fluid flows in only one direction while protecting equipment from reverse flow damage.
✔ Automatic Operation - Self-actuating with flow pressure
✔ Backflow Prevention - Protects pumps and compressors
✔ Low Pressure Drop - Optimized flow path designs
✔ Multiple Configurations - Various styles for different applications
✔ Maintenance-Free - No external controls or power required
Parameter | Description | Technical Specifications |
---|---|---|
Valve Type | Swing, Lift, Dual-Plate, Ball, Tilting Disc, Stop-Check | Based on application requirements |
Size Range | Connection dimensions | ½" to 72" (DN15 to DN1800) |
Pressure Rating | Maximum working pressure | 150-2500 psi (10-172 bar) |
Temperature Range | Operational limits | -320°F to 1500°F (-196°C to 816°C) |
Cracking Pressure | Minimum opening pressure | 0.5-15 psi (0.03-1 bar) |
Flow Capacity (Cv) | Flow coefficient rating | 5-10,000 (varies by size/type) |
Body Material | Primary construction material | Cast Iron, Carbon Steel, Stainless |
Seat Material | Sealing surface composition | Metal, EPDM, FKM, PTFE |
End Connections | Interface types | Flanged, Threaded, Wafer, Butt Weld |
Closure Speed | Response time to close | Instant to 5 seconds |
Certifications | Industry standards | API, ASME, ISO, PED |
Optional Features | Special configurations | Spring-assisted, Silent, Non-slam |
✔ Water Systems - Pump discharge protection
✔ Oil & Gas - Pipeline backflow prevention
✔ Chemical Processing - Corrosive fluid control
✔ HVAC - Chiller and boiler systems
✔ Power Generation - Condensate return lines
✔ Marine - Ballast and bilge systems
Equipment Protection - Prevents reverse rotation damage
System Safety - Eliminates contamination risks
Energy Efficient - Minimal pressure loss
Versatile Installation - Multiple mounting orientations
Long Service Life - Robust construction materials
Standard Features:
Corrosion-resistant internals
Positive sealing mechanism
Flow direction markings
Maintenance access points (select models)
Heavy-duty hinge pins (swing types)
Application | Recommended Type | Key Advantage |
---|---|---|
High-Pressure Steam | Nozzle Check Valve | Fast closure prevents water hammer |
Wastewater Systems | Dual-Plate Check | Compact design, easy maintenance |
Chemical Processing | PTFE-Lined Check | Superior corrosion resistance |
Pump Discharge | Swing Check | Low cracking pressure |
Vertical Flow | Lift Check | Reliable operation in any orientation |
Would you like:
Pressure drop calculations for specific models?
Material compatibility charts?
Installation orientation guidelines?
Water hammer prevention solutions?
Custom configuration options?