Technical Overview & Engineering Specifications
The Module 05: In-House Casting, CNC Machining, Hydrostatic FAT & QC Nodes 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 |
|---|---|---|
| Foundry Equipment | Medium-frequency electric induction furnaces + automated sand molding | Strict temperature control during tapping (1480°C) |
| Nodularizing Treatment | FeSiMg master alloy inoculation achieves > 90% spheroidal graphite | Verified under metallographic microscope on every heat |
| CNC Boring & Turning | High-precision multi-axis CNC machines for body and flange faces | Flange perpendicularity and roughness controlled to Ra 3.2 |
| Coating Application | Automated preheating ovens + electrostatic fluid bed powder spraying | AkzoNobel Resicoat FBE applied uniformly ≥ 250 mm |
| Quality Hold Points | Chemical analysis, tensile test, dimensional check, 100% pressure test | Zero defect pass policy before crating |
In-House Electric Induction Foundry Control
By melting our own virgin pig iron and steel scrap in controlled electric induction furnaces, Baoming maintains absolute oversight over metallurgical chemistry, eliminating the structural porosity and inclusions common in outsourced casting operations.
Optical Emission Spectrometry on Every Melt
Before pouring each ladle into sand molds, a spectral sample is sparked and analyzed to verify that carbon, silicon, and magnesium levels match strict QT450-10 specifications. Test logs are permanently archived against casting heat numbers.
100% Individual Hydrostatic Testing Policy
Unlike manufacturers who practice statistical sampling, Baoming subjects 100% of finished valves to individual hydrostatic shell (1.5x PN) and seat (1.1x PN) pressure testing on automated clamping test benches.
Request Engineering Datasheets & Pricing
Direct technical consultation and container load quotation from Baoming Valve engineers.