GB Standard Flanged Ball Valve

Zhejiang Chenxiang Valve Co., Ltd. offers our product for domestic engineering projects. Many chemical, power, metallurgy, and municipal projects in China follow the national standard system. Our product is designed and manufactured strictly according to GB standards. Connection dimensions comply with GB/T 9113. Face-to-face dimensions follow GB/T 12221. Performance tests meet GB/T 12237 requirements. Pressure ratings range from PN16 to PN420. This product serves petroleum, chemical, natural gas, light industry, power, pharmaceutical, metallurgy, water supply, and military sectors. It handles compressed air, natural gas, coal gas, LPG, nitrogen, oxygen, hydrogen, steam, flue gas, and various process tail gases. Our models include Q341F, Q347F, Q347N, Q347PEEK, and Q347Y.

Our GB standard flanged ball valve uses body materials such as A105, F304, F316L, LF2, F11, F22, F53, F55, 4A, 5A, Inconel, Monel, 2205, 2507, 904L, copper alloy, titanium alloy, Hastelloy, and nickel alloy. You can choose manual, worm gear, pneumatic, electric, or hydraulic drives. Connections are RF, FM, G, M, or RTJ, meeting GB flange face standards. The structure is floating ball or trunnion ball. We are located in Wenzhou Longwan, the China Valve City. The production support for GB standard valves here is very mature. Every product undergoes shell strength testing and seal testing before shipment. We use a direct-reading spectrometer to check the chemical composition of each material batch. Our laser printer marks the GB code, pressure rating, diameter, and heat number on the valve body. These marks are clear and permanent. Each valve comes with a GB material certificate and pressure test report.

Chenxiang Valve has supplied GB standard flanged ball valves to thousands of domestic projects. We have never had a batch return. Our products meet the GB/T 19001 (ISO 9001) quality management system requirements. We provide a 1-year warranty. Export products use wooden case packaging. Trade terms are EXW and FOB. Choose our product for reliable, fully compliant performance in your domestic pipeline systems.