Yulin vinyl-acetate unit awards valve pressure-testing services
China Chemical Engineering Fourth Construction announced on 27 October that Hangzhou Ruifa Intelligent Technology won valve pressure-testing services for Shaanmei Yulin Chemical’s vinyl-acetate unit.

The story explained
China Chemical Engineering Fourth Construction announced on 27 October that Hangzhou Ruifa Intelligent Technology won valve pressure-testing services for Shaanmei Yulin Chemical’s vinyl-acetate unit.
The unit forms part of the 15-million-tonne-per-year coal conversion demonstration project. That capacity describes the parent coal-conversion project, not vinyl-acetate output or the quantity of valves covered by the service package.
The open comparative procurement is numbered FCC-XB-FWZB-2026-039, with awarded lot FCC-XB-FWZB-2026-039/01. The result identifies the pressure-testing service provider; it does not award valve manufacturing or equipment supply.
The public notice omits test pressures, hold times, leakage criteria, valve quantities, contract value and completion date. Appointment of a testing contractor does not establish that tests have been completed, that valves passed, or that the process unit is ready to start.
Why it matters
Editorial analysis: This milestone concerns valve quality-verification services. Scope, traceable records and acceptance are more relevant follow-ups than estimating new valve purchases.
Relevant toValve-testing companies, construction contractors, project quality teams
What to watch next
Look for the approved testing plan, results and acceptance records; keep this event separate from procurement for other units.
These are research prompts, not announced tenders or confirmed subsequent developments.
中国化学电子招标投标交易平台
榆林陕煤榆林化学1500万吨/年煤炭分质清洁高效转化示范项目醋酸乙烯装置-阀门试压服务作业成交公告
This is an independently written summary and analysis, not an official translation. Project plans and status may change.