Atlas Non-return Valve 2236043880 High Quality Screw Air Compressor Parts Wholesalele
A non-return valve (NRV) or check valve allows fluid flow in one direction only, preventing backflow in pipelines. Commonly used in water, oil/gas, chemical, and HVAC systems to protect pumps, compressors, and other equipment.
Key Features
-
Automatic Operation: Opens/closes based on flow pressure (no manual intervention).
-
Low Pressure Drop: Minimal flow resistance in open position.
-
Versatile Designs: Swing, lift, ball, diaphragm, or wafer styles.
-
Leakproof Seal: Tight sealing when closed (metal-to-metal or soft seals).
Parameters Table
| Parameter | Specification |
|---|---|
| Type | Swing / Lift / Ball / Wafer / Dual Plate |
| Size Range | ½" to 24" (DN15–DN600) |
| Pressure Rating | PN10–PN420 (Class 150–2500) |
| Temperature Range | -40°C to +550°C (-40°F to +1022°F) |
| Body Material | Cast Iron / Carbon Steel / SS304/316 / Duplex |
| Seat Material | EPDM / NBR / PTFE / Metal (Stellite) |
| Flow Direction | Horizontal/Vertical (depends on type) |
| Standards | API 6D, ASME B16.34, ISO 5752, DIN 3352 |
Applications
-
Water/Wastewater: Pump discharge lines.
-
Oil & Gas: Pipeline backflow prevention.
-
Chemical Plants: Corrosive fluid handling.
-
HVAC: Chiller and boiler systems.
Selection Notes
-
Swing Check Valves: Best for low-velocity liquids.
-
Lift Check Valves: High-pressure systems.
-
Wafer Check Valves: Compact, for limited-space pipelines.
Need additional details (e.g., CV values, installation diagrams)? Let me know!
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.