[Three rain valve to recommend the star product - Mechanical seal] Description: Friction: At the top of the compensation and non-compensation ring ring inlaid with a pair of seal faces, play a major role in sealing machine seal. Under normal circumstances compensate narrow ring of soft material, end; uncompensated manufacturing ring with a hard material, end wider. PTFE bellows mechanical seal mechanical seal OTH-74427442 Features: Single seal; balanced; arbitrary rotation; PTFE bellows scope PTFE bellows type mechanical seal, which uses multiple springs M74-48 mechanical seal, is the most widely used Naifushibeng a mechanical seal. Run Specifications: 35 ~ 65mm Temperature: -10 ℃ ~ + 100 ℃ Pressure: ≤0.5MPa line speed: ≤15m / s Axial movement: ± 0.5mm Media: widely used for corrosion resistant pumps. [Three rain valve to recommend the star product - Mechanical seal] Description: seal failure main reasons: the sealing surface of the mechanical seal is opened when the repair, 85 percent of seal failure is not due to wear and tear caused by M74-55 mechanical seal, but wear had leaked before. When the sealing surface of a mechanical seal open M74-58, medium solid particles into the sealing surface of the liquid under the action of the pressure, the sealing surface is closed, these solid particles can be embedded soft ring (usually right ink ring) of the surface, which actually became a "Wheel" will damage the hard ring surface. When the speed <20-30m / s mechanical seal, the choice of spring rotary structure; the higher the speed, the unbalanced mass of rotating parts can lead to strong vibration, the choice of spring static structure. M74-53 mechanical seal mechanical seal _ selected three rain (certified) _ Sanming 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.