Wafer Ball insulation standards: 1, the design and manufacture standard: GB / T12237, ASME B 16.34 2, structural length standard: GB / T 12221-2005, ASME B 16.10 3, Flange standard: JB / T 79, GB / T 9113, ASME B 16.5 4, pressure and temperature rating: GB / T 12224-2005 5, test inspection standards: GB / T 13927-2008, JB / T9092, 598 Ball API not only simple structure, good sealing performance BQ71F Wafer insulation valve manufacturers, but at a certain nominal diameter within the range of smaller, lighter weight, less material consumption, small size valve installation type, and the drive torque is small, easy to operate, easy to open and close fast BQ71F, nearly a dozen years to develop one of the fastest growing valve varieties. Ball is evolved from the stopcock valve Shandong, its opening and closing parts as a sphere, the use of the sphere around the stem axis 90 ° to achieve the purpose of opening and closing. Ball valve for cutting off the main pipeline, distribution and change the flow direction of the medium, designed as ball valves V-shaped opening also has a good flow regulation. Shandong BQ71F clip-on insulation ball valve type _BQ71F_ Everbright Everbright Limited provided by Shandong valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) strong, credible, Shandong Weifang ball industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Everbright valve into the brilliant and you work for a better future!