[Three rain valve to recommend the star product - Mechanical seal] Introduction: In the pharmaceutical, food, agro-processing and other industries, it is often necessary to wet the base material of the moisture is removed in order to facilitate transportation, storage, or to meet production requirements of moisture content requirements. Heat to vaporize the solid material in which the operation is called dry moisture. Drying operation is usually carried out under atmospheric pressure, but when the material having a heat-sensitive, oxidizable organic solvent or moisture (steam and air mixture which has a risk of explosion), generally by vacuum drying, vacuum rake dryer is used in which One of the more extensive equipment. Rake vacuum dryer seal device has long been the basic dependence on imports, the high cost and long lead times and other issues, once the fault plane seal, vacuum technology network occurs (http://www.chvacuum.com/) considers the direct affecting the normal production. [Three rain valve to recommend the star product - Mechanical seal] Introduction: mechanical seal to ensure low leakage rates even to achieve zero leakage, then end clearance to be small enough. And so by the end surface roughness, parallelism and installation factors M74N-85 mechanical seal, dynamic and static ring face is likely to collide or rub M74N-65 mechanical seal, so the study of friction conditions between the end faces is very important. Mechanical seal when normal operation M74N-90 mechanical seal, due to the different sealing medium, internal structure and operating conditions (speed, pressure, temperature, etc.), according to the viscous force hypothesis, the following four kinds of friction may occur between the state of the seal faces. M74N-65 mechanical seal mechanical seal selection Tianjin _ Rain (certified) _ Henan mechanical seal is provided by three rain Valve Co., Ltd. of Tianjin. Valve Co., Ltd. Tianjin three rain (www.tjsymf.com) (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.