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| Customization: | Available |
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| After-sales Service: | 12month |
| Warranty: | 180days |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Stainless Steel Check Valve (H71W-25P) | IEC61008-1/IEC61008-2-1 |
Parameter Table | 16A,20A,25A,32A,40A,50A,63A |
Rated voltage | 230~1P+N,400V~3P+N |
Rated frequency | 50/60Hz |
Number of pole | 2P,4P |
Module size | 36mm |
Circuit type | AC type,A type, B type |
Breaking capacity | 6000A |
Rated residual operating current | 10,30,100,300mA |
Optimum operating temperature | -5℃ to 40℃ |
Terminal Tightening torque | 2.5~4N/m |
Terminal Capacity(top) | 25mm² |
Terminal Capacity(bottom) | 25mm² |
Electro-mechanical endurance | 4000 cycles |
Mounting | 35mm DinRail |
Suitable Busbar | PIN Busbar |


















Production Capacity | We are equipped with 3 machining centers, 33 CNC lathes, plus sandblasting, polishing and sawing machines (total over 150 units), with a daily output of 2,600 pieces to support stable mass production. We have also established rough processing and component cooperation factories in Anhui and Oujiangkou to realize controllable upstream and downstream production. |
Quality Control | Raw materials are 100% inspected with full traceability; SS304 ≥8% nickel, SS316 ≥10% nickel, exceeding industry standards. We adopt strict IQC, IPQC, FQC control. All products are dimensionally checked within 0.1mm tolerance with regular sampling. Sealing performance and sizes are strictly verified, with qualified and defective goods sorted separately. Every valve passes 100% air-tight & high-pressure testing, with all records filed completely. With 3 workshop labs and ISO 9001 system, final pre-shipment inspection ensures zero defects. |
Technical & Customization Services | We have a team of 3 professional engineers (many with over 5 years of experience), supporting new model design and CAD drawing. With 20 skilled workers in our factory, we offer OEM/ODM customization according to your drawings, including custom logo, packaging, material and size. MOQ is 1 piece, with no minimum order limit. |
Lead Time & Delivery | Sample lead time: 5-7days Bulk order lead time: 30 days In-stock items lead time: 15 days Export-grade packaging (carton/wooden case) with clear marking of name, size, material and quantity, waterproof and dustproof for shipment. Complete documents (packing list, quality inspection report, certificate of origin) are provided in accordance with ISO 9001 requirements. |















