Technical Overview & Engineering Specifications
The Model 200X Pilot-Operated Pressure Reducing Valve Engineering 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 |
|---|---|---|
| Functional Role | Maintains constant downstream pressure regardless of upstream surges | Accurate to within ± 0.02 MPa (± 3 psi) |
| Pressure Rating | Inlet up to PN25 (2.5 MPa) / Outlet adjustable 0.1 to 1.6 MPa | Dual calibrated pressure gauge ports |
| Pilot Trim Architecture | Stainless Steel 304 pilot with micro-metering needle valve | High sensitivity multi-hole throttling disc |
| Size Coverage | DN50 to DN600 (50 mm to 600 mm) | Heavy QT450-10 ductile iron body |
| Testing Standard | 100% factory flow loop calibration & pressure holding test | Tested to EN 12266-1 Rate A zero leakage |
Downstream Pressure Stabilization Under Fluctuating Inflow
Model 200X senses downstream pressure through a stainless steel pilot circuit. If downstream pressure rises above the setpoint, the pilot throttles, accumulating pressure in the upper diaphragm chamber and closing the main valve to restore desired pressure.
Anti-Hunting Stability with Precision Needle Damping
An integrated stainless steel needle valve controls the rate of flow into the control chamber, preventing high-frequency pressure oscillations and water hammer in municipal domestic supply lines.
Complete Flow Loop Calibration Before Export
Every Baoming 200X valve is pre-calibrated on our factory flow test loop to the client's exact project pressure settings, with verification certificates included in shipping documentation.
Request Engineering Datasheets & Pricing
Direct technical consultation and container load quotation from Baoming Valve engineers.