Each valve is tested for strength and air-tightness before leaving the factory. For some valves intended for special applications, SHANGYU also performs low emission test, high and low temperature cycle test, life test, fire test, cryogenic test, and cleanliness test after deoiling and degreasing treatment as the case may be.When all materials are received at the factory, chemical composition analysis and mechanical performance review are performed to prevent nonconforming materials from entering the warehouse. Valve pressure-containing parts are subject to non-destructive testing such as magnetic particle testing (MT), liquid penetration testing (PT), ultrasonic testing (UT) and radiographic testing (RT) as needed.The use of the ERP system in conjunction with the serial number engraved on the valve ensures that each valve is traceable.
Meet and even exceed customers’requirements for quality and service and pursue zero defects.
SHANGYU has its own forging plant, machining plants, welding plant, heat treatment plant and assembly plant, which enable it to control its product quality, date of delivery and prices conveniently and efficiently.
