Technical Overview & Engineering Specifications
The API 609 Category A Lugged Body Concentric Butterfly 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 Standard | API 609 Cat A / MSS SP-67 / EN 593 / ISO 5752 | Full threaded lug pattern |
| Dead-End Service | Full rated bi-directional dead-end isolation capability | Allows downstream pipe removal under pressure |
| Pressure Classes | PN10 / PN16 (1.6 MPa) / 200 psi | 100% hydrostatic shell and seat tested |
| Size Range | DN50 to DN600 (2 inch to 24 inch) | Compact face-to-face ISO 5752 Series 20 |
| Actuation Interface | Direct mount ISO 5211 actuator pad with double D shaft | Pneumatic, electric, or manual lever/gearbox |
Dead-End Isolation Capability for Plant Maintenance
Lugged butterfly valves feature individual threaded holes corresponding to flange bolt patterns. This allows one side of the piping system to be disconnected for pump or filter maintenance while holding full line pressure on the upstream side.
Ductile Iron Body with Reinforced Threaded Bosses
Body lugs are cast from heavy-duty ductile iron QT450-10, providing robust mechanical thread engagement that withstands maximum piping tensile loads without stripping.
Blow-Out Proof Shaft Design
The stem incorporates internal retaining clips and a double-D drive interface, ensuring the shaft cannot blow out of the valve body even under excessive pressure surges.
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Direct technical consultation and container load quotation from Baoming Valve engineers.