The chemical industry refers to the industry that processes, produces, and modifies chemical raw materials and substances through physical and chemical methods, and finally produces various chemical products. The chemical industry is widely involved in various fields such as energy, materials, medicine, pesticides, food, daily chemicals, textiles, electronics, etc., and is an important part of modern industries.
There are many kinds of products in the chemical industry, which can be divided into two categories: basic chemicals and fine chemicals. Basic chemical products include chemical fertilizers, petrochemicals, synthetic resins, plastics, rubber, fibers, glass, etc., which are raw materials for manufacturing in various industries. Fine chemical products include pigments, dyes, fine chemicals, spices, pharmaceutical raw materials, specialty chemicals, etc., which are an important part of the manufacture of various high-end products.
The production process of the chemical industry is generally more complicated, involving a large number of chemical reactions and transformations of substances, and also produces a large amount of pollutants and waste. Therefore, chemical companies need to strictly abide by environmental regulations in the production process to protect the environment and human health and safety.
Why Valves Are Important in Chemical Industry?
In the production process of the chemical industry, valves are a very important component. Valves are widely used in various fields of the chemical industry, such as raw material transportation, reaction process, separation and purification, storage and transportation. Valves can be used to control parameters such as flow, pressure, temperature and direction of media to ensure the safety, stability and efficiency of the production process. Different media may require different types of valves, such as globe valves, regulating valves, ball valves, butterfly valves, diaphragm valves, etc.
At the same time, chemical companies also need to select appropriate valve materials and sealing methods according to the needs of the production process to ensure the corrosion resistance, high temperature resistance and sealing performance of the valves. The correct selection and use of valves can effectively improve the production efficiency and product quality of chemical enterprises, reduce production costs, and at the same time ensure the safety of the production process and the environment.
Which Kinds Of Materials Are Suitable For Chemical Industry?
For the production process of the chemical industry, the material selection of the valve is very important. Different chemical media have different parameters such as corrosiveness, temperature, pressure and density, so it is necessary to select suitable valve materials to ensure the durability, sealing and performance of the valve. The following are some common valve material recommendations:
Stainless steel has high corrosion resistance, high-temperature resistance and mechanical strength, and is one of the valve materials widely used in the chemical industry. Stainless steel valves can be used to handle media such as acids, alkalis, oxidants and organic solvents.
PTFE is a very inert material with great corrosion and chemical resistance. PTFE valves can be used to handle media such as strong acids, strong alkalis, chlorides, fluorides, and organic acids.
F46 is a modified material of PTFE, which has good corrosion resistance and wear resistance and can be used for the treatment of some specific media in the chemical industry.
PTFE and its modified materials are inert and chemically stable, can withstand a wide range of acids, alkalis, oxidants, reducing agents and organic solvents, and can maintain stability in high-temperature, high-pressure and low-temperature environments. Due to its excellent performance, it is widely used in valves, pipelines, pumps, seals and packings in the chemical industry.
PVDF material is a kind of polyvinylidene fluoride, which has good corrosion resistance, heat resistance, mechanical strength and weather resistance, and is widely used in valves, pipes, pumps, seals and packings in the chemical industry.
PVDF material has excellent corrosion resistance, and can run stably for a long time in a variety of strong acids, strong alkalis, salts, organic solvents, and oxidants. It also has wear resistance and UV resistance, and can be used in outdoor environments for a long time. In addition, the PVDF material also has good high temperature resistance and can operate in high-temperature environments.
In short, PVDF valves are one of the commonly used materials in the chemical industry. They can operate in a variety of corrosive media, have good high temperature resistance and weather resistance, and are suitable for various process conditions and operating environments.
The Different Between PTFE Material And PVDF Material
PTFE and PVDF are both polymer materials, but they have several important differences:
PTFE is a very chemically inert material that does not react to most chemicals. In contrast, PVDF can be somewhat reactive to some chemicals.
Temperature And Corrosion Resistance
PTFE has excellent corrosion resistance and temperature resistance, and can be used under high temperature and strong acid and alkali conditions. In contrast, PVDF has poor corrosion resistance and temperature tolerance, and can only be used under medium temperature and weak acid and alkali conditions.
PTFE is a very soft material with high elasticity and compressibility, while PVDF is a harder material with high tensile strength and abrasion resistance.
The types and properties of media in the chemical industry vary widely, and different media may cause different corrosion and wear to valves made of different materials. Therefore, when selecting the valve material, it is necessary to comprehensively select the most suitable valve material according to the actual situation, according to the characteristics of the medium, operating conditions, service life and other considerations.
Here is the introduction of materials for the chemical industry for your reference. If anything we could help with valve selection, feel free to consult us at email@example.com