The Shanghai Municipal Bureau of Quality and Technical Supervision recently conducted special supervision and spot checks on the quality of valve products produced in Shanghai. This batch spot checks 55 batches of products, after inspection, failed 0 batches. It is reported that the valve is listed in the National Industrial Product Licensing Product List. By the end of April, there were 57 valid certified manufacturing enterprises in Shanghai, of which 55 were actually obtained. Another 2 companies did not collect samples due to reasons such as suspension of production.
The supervision and inspection are based on GB/T13927-2008 "Industrial Valve Pressure Test", JB/T9092-1999 (2009) "Valve Inspection and Test", GB/T12224-2005 "Steel Valve General Requirements", GB/T12232- 2005 "General Valve Flanged Connection Iron Gate Valve", GB/T12233-2006 "General Valve Iron Stop Valve and Lifting Check Valve", GB/T12234-2007 "Steel for Connecting Valve Cover for Petroleum and Natural Gas Industry Studs Gate Valves", GB/T12235-2007 "Steel and Globe Valves and Lifting Check Valves for Petroleum, Chemical and Related Industries", GB/T12237-2007 "Steel Ball Valves for Petroleum, Chemical, and Related Industries", GB/T T12238—2008 Flange and Clipping Connection Flexible Sealed Butterfly Valve, GB/T19672-2005 Pipeline Valve, CJ/T216-2005 Soft Sealing Gate Valve for Water Supply and Drainage, CJ/T261-2007 Butterfly Valve for Water Supply and Drainage , JB/T8527-1997 "Metal Sealed Butterfly Valve", GB/T12236-2008 "Steel Swing Check Valve for Petroleum, Chemical, and Related Industries", GB/T 12239-2008 "General Valve Diaphragm Valve", GB /T13932—1992 General Purpose Valve Iron Swing Check Valve, CJ/T 219—2005 "hydraulic control valve" and other national standards and related standards require that the following items of the product be tested: shell test, high pressure seal test, low pressure seal test, upper seal test, body wall thickness measurement, stem diameter Measurement, valve sign inspection, nameplate content inspection.
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