The selection of mechanical seals

　　1. Installation sealed space to determine the multi-spring or single spring or wave springs, built-in or externally mounted.

　　2. According to the seal chamber pressure to determine the sealing structure with balanced or unbalanced type, single face or double face.

　　3. According to the pace of work, determine the use of rotary or static, hydrodynamic pressure and non-contact type.

　　4. According to the temperature and fluid properties, determine the friction pair and the secondary seal, and the correct choice of lubrication, washing, insulation, cooling and other mechanical seal cycle protection system.

　　The using of mechanical seal

　　(1). operation before the first medium, the cooling water valve to open, check the seal cavity, the gas full discharge to prevent the static pressure, causing a leak, and then switched.

　　(2) When the transmission medium temperature high, too low, or impurities particles, flammable, explosive, toxic, must be taken to the corresponding resistance seal, washing, cooling, filtration and other measures.

　　(3) operation before hand drive cars, pay attention to torque is too large, with or without a collision and not the sound.

　　(4) after driving for work is normal and stable, with or without shaft rotation caused by the abnormal torque, as well as abnormal noise and overheating.

　　(5) Note the rotation, the appropriateness of whether the coupling of the lubricant additive, the bearing parts, piping is correct.

　　More about Othello mechanical seal, Please contact oth01@othchina.com oth02@othchina.com