• PVC pipe fittings cold spots eliminate

    PVC pipe fittings in the production process, caused by the material temperature is too low plasticizing poor, generally known as cold spots, the following is introduced on PVC pipe fittings cold spots eliminate. The elimination of cold spots, cold sp...

  • Common faults of pneumatic butterfly valves and their troubleshooting methods

    Pneumatic butterfly valve is a commonly used valve in various projects. Each pneumatic butterfly valve produced by our Shanghai Zhongmei Valve will undergo pressure test before leaving the factory. Only qualified pneumatic butterfly valves will be ap...

  • Valves are classified by function and use

     (1) Cut-off category: such as gate valve, globe valve, plug valve, ball valve, butterfly valve, needle valve, diaphragm valve, etc. Shut-off valves are also known as closed-circuit valves and shut-off valves, which are used to connect or cut off the...

  • How to improve the sealing performance of self-operated regulating valve

    The self-operated pressure regulating valve is divided into three series: self-operated pressure, differential pressure and flow regulating valve. The self-operated pressure regulating valve is divided into two types according to the position of the ...

  • What is the main difference between PVC-U pipe and PVC-C pipe

    There are differences in appearance. PVC-C cable pipes are generally yellow and orange, while PVC-U drainage pipes are generally white. Muqiao Valve Technology Shanghai Co., Ltd. upvc industrial pipe fittings The two applications are different. PVC-U...

  • How to set the sampling valve of high pressure pipeline

    Sampling valve, as its name implies, is a valve used to obtain media samples for chemical analysis. Generally, it is installed on equipment or pipelines and can be divided into the following types: double opening valve, flange clip valve, and samplin...

  • How globe valves work

    The shut-off valve only allows the medium to flow in one direction, and it is directional during installation. The structural length of the globe valve is longer than that of the gate valve. At the same time, the fluid resistance is large. During lon...

  • What is the essential difference between chemical grade PVC pipe fittings and PVC pipe fittings

    Polyvinyl chloride is made from acetylene gas and hydrogen chloride, and then polymerized. Has higher mechanical strength and better corrosion resistance. It can be used to make exhaust gas detoxification towers and gas-liquid conveying pipes in chem...