Technical Overview & Engineering Specifications
The Commercial HVAC Piping: Balancing, Triple Duty & Chilled Water Shutoff 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 |
|---|---|---|
| HVAC Circuits | Chilled water supply/return (6°C/12°C), condenser water, hot water | High-efficiency building MEP systems |
| Valve Selection | Wafer butterfly (D71X), silent check (H42X), Y-strainer (GL41H) | Low operating torque and zero condensation corrosion |
| Balancing & Bypass | Model 800X differential pressure bypass control valve | Protects variable frequency chillers from low flow |
| Pressure Ratings | PN16 (1.6 MPa) / PN25 (2.5 MPa) / Class 150 | Tested to EN 12266-1 Rate A bubble-tight |
| Temperature Range | -10°C to +120°C with WRAS approved EPDM seats | Prevents hardening under chilled/hot cycling |
Eliminating Condensation Corrosion on Chilled Water Mains
Chilled water piping operates in moist ambient conditions. Baoming's full exterior fusion bonded epoxy coating (≥ 250 mm) prevents rust sweating and pipe insulation deterioration.
Model 800X Differential Bypass for Variable Chiller Flow
As individual zone two-way control valves modulate closed, system differential pressure rises. The Model 800X valve senses pressure across supply and return headers, bypassing excess flow to protect chillers from tripping on low-evaporator flow alarms.
Compact Wafer Butterfly Valves for Tight Equipment Rooms
With mechanical equipment rooms demanding maximum spatial efficiency, Baoming Model D71X wafer butterfly valves fit into tight pipe racks, offering bi-directional bubble-tight shutoff with lever or gear operation.
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Direct technical consultation and container load quotation from Baoming Valve engineers.