Factory & About
A real factory you can audit — not a trading office with a borrowed workshop photo.
From castings to crates, under one roof
SunPeak started in 2008 as a machining workshop supplying valve bodies to exporters. In 2014 we built our own assembly and test halls and began exporting under our own name. Today 140 people work across 26,000 m² in Wuxi's Huishan District, and roughly 120,000 valves a year leave for distributors, EPC contractors and OEM skid builders in more than 40 countries.
Keeping casting inspection, machining, assembly, testing and painting in-house is slower to build but faster to ship: nothing waits on a subcontractor, and when a drawing changes, the change reaches the machine the same day.
- ✔ ISO 9001:2015 quality management
- ✔ CE / PED 2014/68/EU for the EU market
- ✔ Test reports to API 598 / EN 12266 with every shipment
- ✔ EN 10204 3.1 material certificates on request
What the factory can do
Machining
32 CNC machining centres and lathes; bores and faces finished in-house to IT7 tolerances.
Assembly
Two assembly lines with torque-controlled bolting and stem alignment checks on every unit.
Testing
Hydrostatic benches to DN600 / 6.4 MPa, air test tanks, torque test rig for actuated packages.
Surface & packing
Epoxy coating line, then export packing: plastic caps, desiccant, fumigation-free plywood cases.
Planning a factory audit?
We host buyer visits and third-party inspections (SGS, Bureau Veritas, TÜV) regularly — and if you can't travel, we do live video walk-throughs of the exact line your order runs on. Arrange it here →