[Three rain valve to recommend the star product - Mechanical seal] Introduction: Generally, there are so few sealing method - 1. sealing parts to minimize congestion and isolation 2. 3. 4. Increase leads or inject leak resistance 5 One additional element acting in the channel 6. A variety of combinations of three rain valve sealing method [recommend to you 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: Deformation easy, effortless mechanical seal when pressed, but the pressure, temperature capabilities are poor 202-155 mechanical seal, only for the low pressure, the temperature is not high places. Natural rubber has some acid properties 202-135 mechanical seal, temperature should not exceed 60 ℃; neoprene and ability of certain pH, temperature 80 ℃; nitrile rubber oil, available to 80 ℃; Viton corrosion good performance, heat resistance stronger than ordinary rubber, can be used in 150 ℃ medium. 202-135 mechanical seal _ _202 Zhaotong mechanical seal mechanical seal provided by the election of three rain Valve Co., Ltd. Tianjin three rain. Valve Co., Ltd. Tianjin three rain (www.tjsymf.com) strong, credible, in Tianjin seal industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the three rain valve into the brilliant and you work for a better future!