Development of plastic valves

Plastic valve is a widely used type of valve, it has the advantages of corrosion resistance, light weight, wear resistance, etc. It is widely used in chemical, petrochemical, environmental protection and other industries. The following is the development history of plastic valves.

In the 1950s, with the rapid development of the chemical industry, the demand for valves gradually increased. At this time, plastic materials have been widely used in the industrial field, so some engineers began to study how to apply plastic materials in the manufacture of valves. Early plastic valves were mainly manufactured using polyvinyl chloride (PVC) material, which has good corrosion resistance, but its mechanical properties are poor and only suitable for low pressure and low temperature working environment.


In the 1960s, with the continuous development of plastics technology, polypropylene (PP), polytetrafluoroethylene (PTFE) and other materials were used in the manufacture of plastic valves. These materials have better mechanical properties and corrosion resistance, and can adapt to a wider range of working environments.

In the 1970s, with the maturity of plastic valve technology, a variety of new plastic valves were introduced, such as polyvinyl fluoride (PVDF) valves, glass steel valves, etc.. These new materials have better chemical stability and mechanical properties, and can adapt to more demanding working environment.

At the beginning of the 21st century, with the increasing awareness of environmental protection, the requirements for valves are becoming higher and higher. At this time, some new plastic materials were used in the manufacture of valves, such as polyetherketone (PEEK), polyimide (PI) and other high-performance plastic materials. These materials have better mechanical properties and corrosion resistance, and can meet the more demanding working environment.

In short, with the development of the chemical industry and the continuous innovation of plastics technology, plastic valves have experienced the development of high-performance plastic materials from the early PVC materials to the present, constantly improving their corrosion resistance, mechanical properties and scope of application, becoming an important and indispensable equipment for chemical, petrochemical and environmental protection industries.

Post time: Mar-02-2023