Every claim on this site can be checked against a document. Certificates are issued with each offer; factory audits and third-party inspection are welcome.
Scope and validity are stated on the certificate itself — we send the full documents, not just logos.
Design, machining, assembly and calibration under one roof in Wuhan. Every unit is calibrated and stroke-tested before packing; serial numbers trace the build and calibration record.
Selected references. Client names are shared during commercial discussion where confidentiality permits.
Retrofit of imported positioners across 600 MW-class units; turbine bypass service on 1000 MW units.
316L stainless series selected for offshore oil platforms in the CNOOC system.
Positioner life extended from about six months to four years on coking service at a major steel group.
Batch installations in chlorinated paraffin and fine-chemical projects — hundreds of units per plant.
Supplied into nuclear-sector projects; 2025 entry in the petrochemical & chemical instrumentation catalogue.
Cryogenic service with low-temperature configuration; custom builds to −60 °C for cold-climate projects.
It is not the fashionable architecture — it is the one that survives dirty air, heat and vibration with the fewest failure modes. No fragile front-end electronics exposed to ambient heat; a mechanical position loop; a sealed air circuit.
Where electronics do appear — HART 7 diagnostics, LCD, limit contacts, surge protection — they serve maintenance decisions, not the control loop itself.
Factory visit, third-party inspection before shipment, or a sample unit on trial — all welcome. We would rather you verify than trust a brochure.
Arrange a factory visit