Self-priming pump mechanical seal installation elements

Check carefully before installing self-priming centrifugal pumps build adequate number of sealing parts, all components for damage, especially in dynamic and static ring without bumps, cracks and deformation and other defects. If you have questions, need to be repaired or replaced with new parts. Check that the hub or gland chamfer is appropriate, if not meet the requirements must be trimmed.
Mechanical container seals assembly of the various components and their related contact surfaces before installation with acetone or ethanol must be clean. Installation process should be kept clean, especially the dynamic and static ring and auxiliary sealing elements shall be free of impurities, dust. Dynamic and static ring coated with clean oil or turbine oil.
Gland on the coupling alignment should be performed after. Bolts should be tightened evenly to prevent the gland section skewed, with a feeler or a dedicated tool to check each point, the error is less than 0.05 mm. Check the gland and the shaft or sleeve OD with the gap (and concentricity), must be guaranteed four weeks evenly, with each point feeler tolerance is not greater than 0.10 mm.
Spring compression according to regulations, does not allow too large or too small phenomenon requiring error ± 2.00 mm in cross-section than the pressure increase over the General Assembly to accelerate the cross-section wear. Too small will result in less than the pressure can not play a role in sealing, spring after spring loaded seat to move flexibly. With a single spring to the attention of the spring rotation, the spring rotation axis of rotation should be in opposite directions. Fixed Length plastic seals Ring must remain flexible movement after installation, the ring is pressed against the spring should be able to automatically bounce back after.