Manufacturing
Every valve begins with verified materials and follows a structured manufacturing process covering machining, welding, assembly, testing, and traceability management. Supported by a 10,000㎡ facility and 6 production lines, HAOGUANG helps you secure consistent valve quality across both standard and customized orders.
6
Modern Production Lines
200,000+
Valves Produced Annually
1 Piece
MOQ for Custom Orders
7 Days
Fast Lead Time for Standard Orders
Advanced Equipment for Scalable Valve Production
CNC Vertical Lathe System
Core precision machining for fully welded ball valve production
HAOGUANG uses 15 CNC vertical lathes for CNC machining of valve body sealing surfaces, connection structures, and flow channel reference faces.
Ensures stable performance in API 6D valve manufacturing for DN15–DN2500 valves under extreme pressure conditions.
CNC Machining Centers
Precision CNC machining for OEM valve customization
15 CNC machining centers enable precision production of flow passages, seat cavities, bonnet interfaces, and stem guide holes for industrial valves.
Improves dimensional consistency across ball valves, gate valves, and check valves, supporting OEM valve manufacturing and non-standard customization.
How We Control Valve Quality
We record every stage of valve production, giving you complete traceability from forging materials to final pressure testing.
Zero-Leakage Pressure Testing Control
Each valve is hydro-tested to ensure stable sealing performance under Class150–Class2500 working pressure.
Full NDT Welding Quality Screening
Ultrasonic inspection ensures hidden weld defects are eliminated before delivery into your pipeline system.
Fire-Safe API Compliance Validation
API 607 testing confirms sealing stability during fire exposure in gas and petrochemical applications.
Need OEM or Custom Valve Manufacturing Support?
Submit your specifications, including size, pressure class, and medium conditions. We provide technical support aligned with industrial valve applications.