Huaneng Power Auxiliary Equipment
Quality Control — ISO 9001 Certified Power Plant Equipment Factory
Certified systems, factory acceptance testing and full material traceability
Quality at Huaneng Auxiliary Equipment is built on a certified management system and verified by factory testing — not on promises.
Certified management systems
- ISO 9001:2015 — quality management covering design, procurement, fabrication and service.
- ISO 14001:2015 — environmental management across the works.
- ISO 45001:2018 — occupational health and safety management.
Factory acceptance testing on every unit
- Dampers & gates — leakage testing with sealing air, actuator torque and stroke verification, blade alignment check.
- Deaerators — hydrostatic test, internals assembly check, performance guarantee on dissolved oxygen.
- Silencers — insertion loss verified against measured sound pressure levels.
- Pressure equipment — hydrostatic testing at 1.5× design pressure; third-party inspection (SGS/BV) on request.
Material traceability
Mill certificates are archived by heat number and retrievable by purchase order for years. Steel grades, welding consumables and NDT records follow the unit through production, and the complete documentation package ships with the equipment.
Welding quality
Welders are qualified per applicable codes; critical welds on ducts, shells and gate blades are inspected 100% on the first unit and by AQL 1.0 sampling in series production. Welding procedure specifications (WPS) and procedure qualification records (PQR) are available for review.