We all know that the gear pump inside the seal, generally divided into packing seal and mechanical seal, the following we talk about what characteristics of fluorine plastic seal, what kind of situation is suitable for this seal, the following is his profile: Fluoroplastics Vinyl fluoride) commonly known as "plastic king" by the United States DUPONT CO., LTD So first developed in 1938, 1949, industrial production, from the industrial point of view of 50 years of history, but truly its widely used in the valve industry The time is not long. I plant is also the earliest Fluorine plastic manufacturing pump patents introduced into the plant for further research and development, is the earliest use of fluoride plastic manufacturing corrosion-resistant pumps, valves, pipes and other products one of the enterprises. Fluorine plastic lining corrosion-resistant valve is PTFE resin (or profile processed) using molded (or mosaic) method placed in the steel or iron pump valve pressure parts of the inner wall or the outer surface of the tube, the use of its In the anti-corrosive media unique system made into various types of pumps, valves, pipes. In the corrosion-resistant materials, PTFE materials have incomparable excellent performance, in addition to molten alkali metals, fluorine and aromatic hydrocarbons, in various concentrations of hydrochloric acid, sulfuric acid, nitric acid, aqua regia, organic acids, strong oxidants , Concentrated, dilute acid alternating, alternating acid and alkali and a variety of organic solvents were inert to the reaction, the PTFE lining in the pump, the valve wall, both overcome the shortcomings of low strength Teflon material, and Solve the pump, valve body material corrosion resistance is poor, high cost. In addition, in addition to PTFE has excellent chemical stability, its antifouling, anti-sticking, static and dynamic friction coefficient is very small and similar, anti-friction lubrication performance is good, as the valve opening and closing parts of the seal , Can reduce friction between the sealing surface, reduce valve operating torque, improve product life, its use can also be extended to the food, pharmaceutical industry. In addition to PTFE (F4), FEP (F46) and PVDF (F2), the lining material also extends to PE, PP and PVC range of polyolefins to meet the needs of various operating parameters. Our company mainly has two types of fluorine plastic pump products, one for the perfluorinated plastic corrosion-resistant pump, (such as a small gear pump); a class of fluorine-based plastic-type corrosion pump, (such as large gear Pump).
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