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No leakage is the eternal pursuit of chemical equipment, chemical pump but there is still a long way to go without leakage, this issue involves the sealing of chemical process pump. Now Xiaobian chemical pump seal on the process to you a brief introduction: Chemical process pump seal 1. Seal For the static seal, the seal is usually only two forms and seals, and the seal again O Ring for the most widely used; for dynamic seals, chemical pumps rarely use packing seal, mainly mechanical seals, mechanical seals and single-ended and double-ended, balanced and unbalanced type, balanced type for high pressure medium Sealed (usually refers to the pressure greater than 1.0MPa), double-end machine seal is mainly used for high temperature, easy to crystallize, viscosity, containing particles and toxic volatile medium, double seal should be injected into the sealed chamber isolation liquid, the pressure is generally high The medium pressure 0.07 ~ 0.1MPa. 2. Sealing material Chemical pump static sealing materials generally use fluorine rubber, special circumstances only use PTFE material; mechanical seal ring static material configuration is more critical, not cemented carbide is the best on the cemented carbide, the price is high On the one hand, the hardness difference between the two is not reasonable, so it is best to distinguish between media characteristics. Extended reading: Top ten brands of motorcycles Canton Fair Central China Construction Water Exhibition Pump manufacturers ranked ptc exhibition industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat:) http: //beng.liuti. cn / (Service Hotline:)