Technical Overview & Engineering Specifications
The EN 12334 Cast Ductile Iron Resilient Hinge Swing Check Valve Datasheet is an authoritative engineering and procurement specification published by Quanzhou Baoming Hardware Products Co., Ltd. (Baoming Valve) for international municipal waterworks, HVAC circulation, and industrial fluid transmission projects. Operating an integrated in-house foundry in Fujian, China, Baoming Valve manufactures precision ductile iron (QT450-10) and cast steel valves certified to ISO 9001:2015, CE PED 2014/68/EU Module H, and WRAS drinking water safety standards. Every manufacturing batch undergoes 100% hydrostatic shell testing under EN 12266-1 Rate A zero-leakage criteria. Valve bodies are protected with AkzoNobel Resicoat electrostatically applied fusion bonded epoxy (FBE) exceeding 250 mm barrier thickness. Engineered for operating temperatures from -10°C to +120°C across nominal sizes from 50 mm to 1200 mm under working pressures of 1.6 MPa and 2.5 MPa. Baoming Valve provides complete EN 10204 3.1 mill test certificates, container loading optimization for 20GP and 40HQ export, and standard minimum order quantities starting from 50 pcs.
Verified Engineering Matrix & Standards
| Specification Parameter | Standard Engineering Value | Baoming Quality Guarantee |
|---|---|---|
| Design Codes | EN 12334 / BS 5153 / DIN 3202 F6 / EN 558 Series 48 | European waterworks swing check benchmark |
| Nominal Pressure | PN10 / PN16 (1.6 MPa) / PN25 (2.5 MPa) | Tested to EN 12266-1 Rate A zero leakage |
| Size Spectrum | DN50 to DN600 (50 mm to 600 mm) | Full unobstructed cylindrical flow area |
| Wedge & Disc Material | Ductile Iron fully vulcanized in WRAS approved EPDM | Zero metallic contact, cushioned closure |
| Protective Coating | AkzoNobel Resicoat electrostatically applied FBE ≥ 250 mm | Corrosion protection for potable and raw water |
Full-Port Unrestricted Waterway for Low Head Loss
The EN 12334 swing check valve provides an unobstructed waterway matching the pipe diameter, resulting in exceptionally low hydraulic resistance and minimizing pumping energy consumption in municipal boost stations.
One-Piece Flexible Rubber Hinge Disc
Baoming's resilient swing check design utilizes an EPDM-encapsulated disc with an integral nylon-reinforced flexible hinge. The absence of traditional mechanical pins and bushings prevents galling and seizure in raw water service.
Inspection Bonnet for Fast In-Line Maintenance
A spacious top inspection bonnet allows technicians to inspect the interior cavity, flush sediment, and replace the disc assembly in minutes without removing the flanged body from the pipeline.
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