[Three rain valve to recommend the star product - Mechanical seal] Description: sealer sealer ideal learning letters, they must first understand M74N-85 mechanical seal leaks, leaks understand the principle, that correspond to the sealing mechanism also there. Leakage is nothing less than three - one wearing a leak, leak sealing surface is, the gap between the two is the mechanical seal leakage M74N-110, which is sealed by the seal material fluid leakage Third capillary diffusion means Under concentration difference of effect, the sealing material occurs by capillary gap medium or material transfer. [Three rain valve to recommend the star product - Mechanical seal] Introduction: Because the coating material and the substrate material both linear expansion at different rates, so the temperature rises, the ring surface cracks will appear, especially Stellite alloy is particularly serious. In the more advanced coating materials, nickel-cobalt-based tungsten carbide based coating is better. Compensation and non-compensation ring ring: compensation ring is sealing ring with axial compensation capability, which can be rotated ring (ring), or non-rotating ring (stationary ring); non-compensated ring is not having the ability to compensate for axial sealing ring, the same can be rotating ring (ring) M74N-120 mechanical seal, or non-rotating ring (stationary ring). 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. M74N-75 mechanical seal | Mechanical seal selection Tianjin rain (certified) | Pakistan 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.