Quality System

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Quality is the soul and value of the product, it's the key point we care most. Suzhou Sunco Valve established efficient quality system, equipped with full sets of test & inspection facilities, from dimensional check instruments to hardness test gauges, torque wrench, chemical composition analyzing (PMI), physical (mechanical)  property test, impact (charpy) and cryogenic test, fugitive emission (FE) test, even NDE (PT, MT, UT, RT) instruments and gauges, guaranteed the 100% stable high quality and zero defect.

QC Flow

Inspection & Test Facilities

Chemical Composition 


Physical Property Tester

HB Tester

HC Tester

Digital Hardness Tester

Ultrasonic Wall 

Thickness Tester

Coating Thickness Tester

Impact Tester for Cryogenic

Helium Leak DetectorFor 

FE & Vacuum

NDE-PT Detector

NDE-MT Detector

NDE-UT Detector