[Three rain valve to recommend the star product - Mechanical seal] Description: Seal Failure Analysis sealing surface itself would provide evidence of seal failure, such as vibration, the transmission parts will have traces of wear 105-25 machine letters, such as traces of obvious, it is generally caused by improper assembly. For poor quality graphite ring (ring) is concerned, its large internal porosity, this is because in the manufacturing process 105-40 mechanical seal, gathered in the inside of the graphite carbon particles blown gas expansion due 105-45 mechanical seal, so this low-quality graphite seal ring is enabled, the carbon particles can easily fall off, leaving the sealing surface of the stick when the seal is disabled. Cylindrical surface of the inner sealing surface scars are likely to be outside the debris into the sealing surface or improper installation. The sealing surface of the annular groove, the majority of solid particles is deposited on the sealing surface caused. [Three rain valve to recommend the star product - Mechanical seal] Introduction: shortcomings of a mechanical seal, mechanical seal structure is more complex, demanding manufacturing process; 2, installation and replacement is too much trouble, and require workers to have some installation technology level; 3, when the accident occurred chance to deal with more difficult; 4, the high one-time investment. 105-28 Mechanical seal | Mechanical seal selected three rain (certified) | Xuhui mechanical seal is provided by Valve Co., Ltd. Tianjin three rain. 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.