As a professional plastic check valve manufacturer, we produce over one million valves annually in compliance with ISO 9001, DIN, ASTM, and CE standards for the global market. Our valves offer excellent sealing, chemical resistance, and a service life exceeding 50,000 cycles, making them ideal for water treatment, chemical processing, and industrial applications.
The PVC swing check valve is an automatic valve that operates based on the pressure differential between the upstream and downstream sides. Designed with a swinging disc, it pivots open under upstream pressure and closes when pressure drops or flow reverses, effectively preventing backflow.
| Item Name | Details |
|---|---|
| Size | 3/4" - 6" |
| End Connection | Socket or Threaded |
| Working Pressure | PN16 / 235psi |
| Standard | DIN / ANSI |
| Main Market | Southeast Asia, Middle East, Africa, South America |
| Parts | Material |
|---|---|
| Lower Body / Upper Body | PVC-U |
| Shaft / Flapper | PVC-M |
| Body Seal / Seat Seal | EPDM |
| Inside Weight Plate | 45 Steel |
| Bolt Sets | Stainless Steel 304, 316 |





Rigorous final inspection is performed before shipment, covering dimensions, sealing performance, and packaging quality. We maintain over 20,000 semi-finished valves in stock to ensure fast delivery within 10 days for urgent projects.





