UPVC    CPVC   the difference UPVC is hard PVC, a modified material is made by adding a certain amount of modifying additives on the basis of PVC resin powder. "U" means Unplasticized (unplasticized), so the main difference between UPVC and PVC ...

Whether the selection of the connection method between the valve and the pipeline or equipment is correct or not will directly affect the probability of running, emitting, dripping and...

Off in the butterfly valve LOOK！LOOK！ Butterfly valve, also called flap valve, is a kind of regulating valve with simple structure. The butterfly valve that can be used for switching control of low-pressure pipeline medium means tha...

For valves under corrosive medium conditions, corrosion prevention is the most important part of chemical equipment. If the metal materials of chemical valves cannot be selected correctly, a little carelessness will damage the equipment, or cause acc...

1. Preparatory work before assembly: Before assembly, valve parts need to remove the burrs formed by machining and welding residues, clean and cut fillers and gaskets. 2. Cleaning of valve parts: The inner cavity of the valve installed as a fluid pip...

Valve assembly is the final stage in the manufacturing process. Valve assembly is the process of combining various parts and components of the valve to make it a product based on the delineated technical premises. The whole machine is the most basic ...

Everyone must have seen the body of a fully welded ball valve. We all know that the welded joints are generally designed for narrow gap thick wall submerged arc welding, and the fully welded valve bodies are mostly super thick cylindrical welded join...

Because of the special structure of the cryogenic valve, the installation of the cryogenic valve also has its special requirements. Because of the structural characteristics of the long-neck bonnet of the cryogenic valve, the direction of the stem of...

We must first understand how to deal with valve water leakage and steam leakage. First, we must understand why water leakage and steam leakage occur. The so-called knowing what is happening and knowing why. To maintain air tightness, the valve must h...

The center of rotation of the butterfly plate (that is, the center of the valve stem) is located on the center line of the valve body and the sealing surface section of the butterfly plate. The valve seat is made of synthetic rubber. When closing, th...

In the chemical control system with a high degree of automation, the regulating valve is used as the terminal execution device of the automatic regulating system, which receives the control signal to realize the regulation of the chemical process. It...

For valves under corrosive medium conditions, corrosion prevention is the most important part of chemical equipment. If the metal materials of chemical valves cannot be selected correctly, a little carelessness will damage the equipment, or cause acc...