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Mechanical seal installation and application requirements

by:Lepu Seal     2020-04-03
1, mechanical seal to the accuracy requirement of the machine ( Pumps with mechanical seal, for example) ( 1) Installation of mechanical seal parts of the shaft ( Or collar) The biggest radial run-out tolerance no more than 0. 04 ~ 0. 06MM。 ( 2) The rotor axial channeling can't move more than 0. 3MM。 ( 3) Seal cavity and sealing end cover positioning end face of shaft ( Or collar) On the surface of the run-out tolerance is more than 0. 04 ~ 0. 06MM。 2, seal validation ( 1) Make sure that the installation whether seal is consistent with the requirements of the model. ( 2) Carefully before installation and assembly drawing, parts number is complete. ( 3) Adopt and coil spring driving mechanical seal, the spring has the branch of left and right hand, to be prepared in accordance with the axis of rotation has been selected. 1) When the temperature of the medium to high, low, or containing impurity particles, inflammable, explosive, toxic, must adopt corresponding resistance sealing and flushing, cooling, filtering, and other measures. ( 2) Turning by hand before operation, pay attention to whether the torque is too big, any scratch and abnormal sound. ( 3) Whether to pay attention to, the coupling of, the bearing parts of the lubricating oil additive is appropriate, piping is correct. ( 4) Operation, first open the medium, the cooling water valve, check the discharge gas seal cavity, to prevent leaks by static pressure, and then switched on. ( 5) Driving to work after normal stable, have without shaft rotation caused by abnormal torque, as well as the abnormal noise and overheating
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