Grooved Silent Non-Return Valve H81X
The H81X-16 Grooved Silent Non-Return Valve H81X is precision manufactured by Quanzhou Baoming Hardware Products Co., Ltd. for potable water, HVAC, and industrial fluid pipelines. Built with high-grade Ductile Iron GGG50, this valve complies with EN 12334 / API 594 and face-to-face dimensions per ISO 5752 / ASME B16.10. Every production batch undergoes 100% hydrostatic shell testing under EN 12266-1 Rate A zero-leakage criteria. The valve body and internal flow pathways are protected by electrostatically applied fusion bonded epoxy (FBE) coating exceeding 250 mm barrier thickness, meeting WRAS drinking water standards. Engineered for operating temperatures from -10°C to +120°C across nominal sizes from 50 mm to 1200 mm (DN50 - DN300 (2" - 12")) under working pressures of 1.6 MPa and 2.5 MPa (PN16 / 300 PSI). Baoming Valve provides complete EN 10204 3.1 mill test certificates, container loading optimization for 20GP and 40HQ export, and low MOQs starting from 50 pcs.
Key Technical Specifications
Key Performance Features
- Fast victaulic grooved end piping
- Stainless steel spring closing mechanism
- Anti-water-hammer shock absorption
- Fire protection standard test passed
Full Engineering Standard Matrix
| Engineering Parameter | Verified Specification & Standard Conformance |
|---|---|
| Design & Manufacturing Standard | EN 12334 / API 594 |
| Face-to-Face Standard | ISO 5752 / ASME B16.10 |
| Flange Drilling & Standard | EN 1092-2 PN10/PN16 / ANSI B16.1 Class 125/150 / BS4504 |
| Hydrostatic Test Standard | EN 12266-1 Rate A / ISO 5208 Rate A (Zero Bubble-Tight Leakage) |
| Shell Test Pressure | 1.5x PN (e.g. 2.4 MPa for PN16) |
| Seat Test Pressure | 1.1x PN (e.g. 1.76 MPa for PN16) |
| Coating Specification | Fusion Bonded Epoxy (FBE) Thermal Powder ≥ 250 μm (EN 14901 / AWWA C550) |
| Working Temperature Range | -10°C to +120°C |
| Suitable Working Media | Potable Water, Municipal Sewage, HVAC Chilled Water, Neutral Fluids |
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