[Three rain valve to recommend the star product - Mechanical seal] Description: Seal Failure Analysis: When checking the hard surface of the ring, there are four signs to note: a, ceramic ring rupture; b, thermal cracking; c, nicks ; d, the coating off. Tight ceramic ring assembly is the main rupture, improper assembly who is also a relatively common cause. Because the coating material and the substrate material both linear expansion at different rates, so the temperature rises, the surface will crack ring mechanical seal, special Stellite alloy is particularly serious. In the more advanced coating materials, nickel-cobalt-based tungsten carbide based coating is better. The cooling of the sealing surface, can effectively prevent thermal cracking 105-90 mechanical seal, the sealing surface of the solid particles remaining on the surface is often damaged, such as grinding grit on the wheel will damage the hard surface of the ring 105-85 mechanical seal , resulting in the sealing surface to open or crystals generated between the sealing surface, and after re-grinding graphite ring, will be embedded in the graphite ring abrasive surface. [Three rain valve to recommend the star product - Mechanical seal]: First, the definition of mechanical seals and hydraulic seals: mechanical seal is one of precision, the structure is more complex mechanical basic components, a variety of pumps The key components were synthesized reactor, turbine compressors, submersible motors and other equipment. Sealing performance and service life depends on many factors, such as the accuracy of selection, the machine, the correct installation and so on. Hydraulic seal pressure demands to have some combination of surface roughness, more rubber sealing element, to achieve the effect by local deformation of the closure seal. 105-75 mechanical seal, mechanical seal selected three rain (certified), Anyang 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.