Mechanical seal assembly of the components of the contact surface, prior to installation with acetone or ethanol must be clean. Installation process should be kept clean, especially the dynamic and static sealing ring and auxiliary components to be free of impurities and dust. Dynamic and static rings coated with clean oil or turbine oil.

 Check carefully before installing self-priming centrifugal pumps are adequate number of parts assembled sealed, all components for damage, especially in dynamic and static ring without bumps, cracks and deformation and other defects. If you have questions, need of repair or replacement of spare parts. Check the sleeve or gland of the chamfer is appropriate, if not meet the requirements must be trimmed.

 The gland should be conducted after the coupling alignment. Bolts should be tightened evenly to prevent the gland section skewed, with a feeler or a special tool to check points, the error is not greater than 0.05 mm. Check the gland and the shaft or sleeve diameter with the gap (and concentricity), must be guaranteed four weeks even, with a feeler check points is not greater than 0.10 mm tolerance.

 Amount of compression spring according to the provisions, had allowed the phenomenon of large or too small, requiring the error ¡À 2.00 mm, may increase the cross-section than the pressure to accelerate the cross-section wear. Too small will cause less than the pressure seal and can not play a role, after the spring loaded to move flexibly within a spring seat. Single spring to the attention of the rotation spring, the spring rotation with the axis of rotation should be in opposite directions. Ring should be kept flexible and mobile after installation, the pressure to the ring after the spring should be able to automatically bounces back.