[Three rain valve to recommend the star product - Mechanical seal] Introduction: mechanical seals and hydraulic seals mechanical seal type classification: cartridge seal series, light mechanical seal series, heavy machinery, such as hydraulic seals seal series: lip seals, V-ring, U-ring, Y-ring, YX-ring hydraulic cylinder seals commonly used combinations and mostly bud rings, cell to circle and Lancaster closure. [Three rain valve to recommend the star product - Mechanical seal] Description: Common washer performance when using the valve, often depending on the circumstances, replace the original with washers. Often washer: rubber flat washer, rubber O-rings, plastic flat washers, PTFE gasket package, asbestos rubber gasket, metal flat washer, metal washer shaped, metal foreskin washers, wave washers, wound gaskets. Rubber flat washer: deformed easily, effortlessly when pressed H75N-38 mechanical seal, but the pressure, temperature capabilities are poor H75N-35 mechanical seal, only for the low pressure, the temperature is not high places. Natural rubber has some acid properties H75N-25 mechanical seal, temperature should not exceed 60 ℃; neoprene seal machines and ability of certain pH, temperature 80 ℃; nitrile rubber oil, available to 80 ℃; Viton good corrosion resistance, heat resistance stronger than ordinary rubber, can be used in 150 ℃ medium. H75N-25 mechanical seal mechanical seal _ selected three rain (certified) _ Dandong mechanical seal is provided by three rain Valve Co., Ltd. of Tianjin. Valve Co., Ltd. Tianjin three rain (www.tjsymf.com) is a leader in Tianjin, seals, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In three rain valve leadership with the staff warmly welcome all inquiries negotiations to create three rain valve a better future.