How Much Do You Know About Fluorine-lined Valves?

Lined Valve products include rubber lined stop valves, rubber lined ball valves, etc., and their manufacturing technology includes the formula of adhesives and their production process. The adhesive can make the lining rubber have a strong affinity with the pipe wall, and has good anti-corrosion and anti-scaling properties, long service life and other advantages. In order to make the valve have both the strength of metal and the characteristics of corrosion resistance. Classification of fluorine lined valves: Fluorine lined valves are divided into: pipe clamp valves, lined diaphragm valves, lined pneumatic butterfly valves, lined ball valves, lined check valves, fluorine lined stop valves, lined plug valves, lined wedge gate valves, diaphragm valves, butterfly valves, ball valves, swing type, ball core check valves, pneumatic lined rubber, fluorine plastic diaphragm valves (normally closed), DC lined rubber diaphragm valves, packing type adjustable fluorine plastic butterfly valves, fluorine plastic stop valves, etc. Purpose and use of fluorine-lined valves: With the rapid development of modern industry, fluorine-lined valves and various pipeline accessories have been rapidly applied and promoted in various fields such as petroleum, printing and dyeing, and chemical industry, showing strong vitality. As the preferred project in the project, it has attracted great attention and favor from various engineering design units and construction units. It is a sunrise product with great market potential. Fluorine-lined valves have the dual functions of switching and flow regulation. They can conveniently open and close the gas line without affecting the flow, ensuring the repeatability of the flow. It opens slowly, reducing the impact of instantaneous pipeline pressure on the instrument. It is equivalent to adding a damper, thereby greatly improving the service life of the needle valve. Fluorine-lined valves are specially used to control corrosive or highly corrosive media. The inner surface of the valve body is covered with various fluoroplastics that can be selected. It is suitable for different working temperatures and fluid pipelines, and has the characteristics of high strength and good corrosion resistance. Fluorine-lined valve introduction: Fluorine-lined valves are also called fluoroplastic lined corrosion-resistant valves. They are made by placing polytetrafluoroethylene resin (or processed profiles) on the inner wall of steel or iron valve pressure-bearing parts (the same method is applicable to the lining of various pressure vessels and pipeline accessories) or the outer surface of valve internals by molding (or inlaying). They are made into various valves and pressure vessels by using their unique performance in resisting strong corrosive media. Fluorine-lined valves use lining technology for all places in the valve body that can be reached by the medium. The lining materials are generally made of fluoroplastics such as FEP (F46) and PCTFE (F3). They can be used in pipelines of various concentrations of sulfuric acid, hydrochloric acid, hydrofluoric acid, aqua regia and various organic acids, rotor pump strong acids, strong oxidants and other corrosive media. However, fluorine-lined valves are relatively limited by temperature (only applicable to media between -50℃ and 150℃). The valves that can be made of fluoroplastic linings include: fluorine-lined butterfly valves, fluorine-lined ball valves, fluorine-lined stop valves, fluorine-lined diaphragm valves, fluorine-lined gate valves, fluorine-lined plug valves, etc. Introduction to polytetrafluoroethylene: Among the corrosion-resistant materials, polytetrafluoroethylene has incomparable excellent properties. In addition to molten alkali metals, elemental fluorine and aromatic hydrocarbons, it reacts randomly in various concentrations of hydrochloric acid, sulfuric acid, nitric acid, aqua regia, organic acids, strong oxidants, concentrated and dilute acid alternation, alkali alternation and various organic solvents. Lining the inner wall of the valve with polytetrafluoroethylene can overcome the shortcomings of low strength of polytetrafluoroethylene materials and solve the shortcomings of poor corrosion resistance and high cost of the main body of the valve. In addition, in addition to its excellent chemical stability, polytetrafluoroethylene has good anti-fouling and anti-sticking properties, extremely small and similar dynamic and static friction coefficient values, and good anti-friction lubrication properties. It is used as a sealing pair for valve opening and closing parts to reduce the friction between the sealing surfaces, reduce the valve operating torque, and increase the service life of the product. Its scope of use can also be extended to the food and pharmaceutical industries.

In manufacturing technology, products, including rubber lined fluorine stop valves, are lined up, including formulation, its manufacturing process rubber ball valves and adhesives. Adhesive adhesive and wall lining have a strong affinity, it has excellent resistance to long life, such as anti-fouling performance and luxury. There are corrosion-resistant properties, both metal valve strength. Fluorine valve lined valve: divided. Pinch valve, diaphragm valve lining, lined butterfly valve air pressure along the lined ball valve check valve, side by side, stop valve, plug valve lining, lined wedge gate valve, diaphragm valve, butterfly valve, ball valve swing check valve ball, pneumatic lining rubber, DC fluorine rubber plastic stop valve butterfly valve for plastic lined valve, adjustable lining, etc., fluorine valve, valve core: along the diaphragm packaging, the rapid development of modern industrial fabrics made of diaphragm valve (normally closed) plastic, petroleum, printing, dyeing, promote the rapid application of various pipeline linings or valve accessories in various fields of chemistry, refers to the strong vitality, making the project the priority project is the unit of the sunrise product design and construction engineering, courtesy and huge market potential, attracted great attention. Flow control valve and fluorine have dual functions of the switch to easily ensure flow repeatability, without affecting the flow of gas, open the line, it can be closed. Reduce the impact of the instrument's immediate pressure pipeline and open slowly. A considerable damper was added, resulting in a significant extension of the life of the valve needle. Corrosive media, on the surface, is a body cavity, covering the appropriate working temperature and fluid pipeline another good, high strength, corrosion resistance, and in the choice of fluorine or fluorine resin valves to control corrosion. Description Fluorine valve: also known as valve corrosion resistant resin lining also lined valve, 1 method of processing contour molding (or inlay), the valve is, the same method of inner wall (pressure steel or iron resin polytetrafluoroethylene valve placed in fluorine various pressure vessels and corrosive media specific properties are divided into the use of a strong anti-lining type will be applied to the outer surface of the valve parts), accessories and pipeline pressure vessels. Fluorine is a valve, valve body lining media all processes, usually, can be applied to sulfuric acid, hydrochloric acid, hydrofluoric acid, aqua regia, various FEP (F46), use (F3), polytrifluorochloroethylene concentration to achieve material fluorine plastic lining, butterfly lining is, you can: various organic acids, can produce fluorine plastic valves, rotor pumps, media and other corrosive pipes and oxidants, strong acid, however, the temperature strength of fluorine valve (applicable to media between 150 ° C -50 degrees Celsius ℃ ~ only) limit arrangement, gate valve, stop valve lining fluorine ball valve, diaphragm lining, lined plug valve, gate valve lining. Description: PTFE corrosion resistant material, PTFE in different concentrations of hydrochloric acid, sulfuric acid, nitric acid, aqua regia, organic acid, strong oxidant, its strength, unparalleled molten alkali metals, aromatic hydrocarbons and fluorine elements alternately, showing its performance, in various organic solvents, PTFE reaction, in order to solve the high material cost, the corrosion resistance of the main valve, but the low material strength of the PTFE valve on the inner wall of the valve, is to overcome the shortcomings of fluorine, alkali defects alternately, by the dilute acid side. In addition, the chemical stability of dirt is better than that of PTFE to prevent the static friction coefficient is to reduce friction, as a secondary sealing part, closed, very small, similar, low friction performance is the lubrication performance. Improve the life force between the sealing surfaces of the driving valve to reduce the torque, its use can be extended to the food, pharmaceutical industry, products.