For poor quality graphite ring (ring) is concerned, its large internal porosity, this is because in the manufacturing process, gathered in the inside of the graphite carbon particles blown gas expansion caused 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. Crack graphite ring (ring) is due to the vibration transmitting member, and the swollen graphite ring rubber ring of internal stress caused by itself, and due to high temperature coking is caused, which is in the high-temperature hot oil refinery medium Common. Fuming sulfuric acid, nitric acid, hydrofluoric acid, sodium secondary green, aqua regia, over hydroxides erosion of graphite have several strong oxidant, corrosion effect exacerbated with increasing temperature. Usually hard ring (stationary ring) hot surface can cause severe wear of the seal ring, without the vertical pump cooling. At high temperature, high pressure, spring compression is too large, the shaft will move through the lower string is large IRG80-100IA mechanical seal, will cause excessive wear of the sealing surface, when the surface of the inspection ring has four hard signs Note: a, ceramic ring rupture; c, nicks;; d, coating off b, thermal cracking. Here, the sealing surface for signs of wear still need to add the following IRG80-100 mechanical seal, check the wear marks that can help analyze failures. (1), and wear wider: Indicates the pump was a serious misalignment. The reason is: a, bearing damage; b, shaft vibration or axial deformation; c, shaft bending; d, pump cavitation vibration; e, uncoupled pair; f, severely deformed tube; g, seal stationary ring tilt. (2), wear scar narrowing: wear scar than the minimum width of the two narrower IRG80-100I sealing surface of the mechanical seal, which shows the sealing overpressure, pressure or temperature of the sealing surface deformation. (3), no wear marks: Description sealing surface is not bonded. Check the springs and other compensation mechanism is slipping or impeded. (4), the sealing surface no wear marks, but there are bright spots. Sealing surface will be a bright spot without warping wear scar. Pressure is too high, the gland bolts screwed good or not good clip, or pumps can form a rough surface highlights. When using two bolts of the gland, the stiffness is not enough, the deformation is another cause of highlights. When this symptom description: A car on the seal may leak Mechanical seal | IRG65-315IA mechanical seal | pump hot water pipes (businesses) Ltd provided by Anguo stone yuan pump. Shi Yuan Yasukuni City Pump Co., Ltd. (www.shiyuanbeng.com) is specialized in the "IS centrifugal pump, XA centrifugal pump, BA centrifugal, B-type pump, double suction centrifugal pump" of the enterprise, the company of "honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Geng wheat.