Check valve manufacturer in China. Swing, dual plate, rubber disc and silent types. DN50-DN800, PN10/16/25. CI/DI/WCB body. Factory-direct.…
Check valve manufacturer in China. Swing, dual plate, rubber disc and silent types. DN50-DN800, PN10/16/25. CI/DI/WCB body. Factory-direct.
Standard specifications below. Custom sizes, materials and standards available on request.
| Type | Swing · Rubber Disc · Wafer Dual Plate · Silent · Ball · Foot · Air Valve |
|---|---|
| Size Range | DN50–DN800 (2"–32") |
| Pressure | PN10 · PN16 · PN25 · Class 125/150/300 |
| Body Material | Cast Iron · Ductile Iron · WCB · Stainless Steel |
| Seat / Disc | Brass · 2Cr13 · NBR/EPDM · PTFE · 316 SS |
| Design | DIN 3202 F6 · EN 1074-3 · ANSI/AWWA C508 · API 598 |
Every production line is quality-controlled from raw casting to finished valve, and every order ships with the documentation your importers and customs require.
Material identification (PMI) · tensile testing · hardness testing · impact testing — verified on castings and finished bodies.
Fire resistance · high-temperature · ultra-low temperature · high-pressure gas · vacuum · low-leakage (ISO 5208) testing.
Conventional water pressure (shell & seat) testing per the applicable DIN / BS / ANSI / AWWA standard.
Certificate of Origin · test reports (PMI / tensile / hardness / pressure) · material certificates · Bill of Lading · packing list & commercial invoice.
| Quality System | ISO 9001 quality management · third-party inspection on request |
|---|---|
| Packaging | Wooden case / pallet + plastic wrap · individual unit ≤ 1.5 t · 20 ft container ≤ 25 t |
| Lead Time | 30–40 days standard for a 20 ft container · quotation within 24 hours |
Proven in municipal, industrial and commercial installations worldwide.
Quick answers to the questions buyers ask most.
Swing, rubber disc, wafer dual plate, silent, ball and foot check valves.
DN50 to DN800 (2" to 32"), with larger sizes on request.
DIN 3202 F6 and EN 1074-3 for design and face-to-face dimensions.
Cast iron, ductile iron and WCB with brass, stainless steel or rubber seats.
Available models and variants in this line. Click any item to request a factory-direct quotation.
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