Control Valve

ZhengFeng is the top three brand of water system valves in China, and control valves are widely used in building and water supply and drainage systems in China and around the world.ZhengFeng has strict material material control requirements and corresponding process and detection process for material monitoring, for example, about the control valve of the stainless steel parts and copper parts, because of considering the material instability of raw materials, is abundant with China's top five copper factory, stainless steel factory cooperation, let all related materials of spare parts demand by the raw materials have been specified by the manufacturer to supply, in the process of casting, we demand for partners before furnace is through analysis and material testing to ensure the accuracy of the spectrometer, for example, about the control valve of the stainless steel parts and copper parts, because considering the material of the instability of raw materials, is abundant with China's top five copper factory, stainless steel factory cooperation way,The raw materials required for all parts of relevant materials shall be supplied by the designated manufacturer. In the casting process, our requirements for partners are to ensure the accuracy of materials through pre-furnace analysis and material testing of spectrometer; All copper fittings and stainless steel fittings are processed by high-precision numerical control equipment to prevent dimensional deviation caused by human.In the process of processing and at the end of processing, there will be intermediate inspection and final inspection to verify whether the roughness and size of the processing are qualified. Control valves are especially important for performance requirements. If the pressure reducing valve is not decompressed during operation, it may cause detonation.If the pressure relief valve is in use, if not pressure relief, may also cause pipe explosion, these losses are not quantifiable.Because ZhengFeng has maintained a rigorous attitude to all materials, the reliability of control valve and maintenance.