High temperature hot oil pump mechanical seal replacement installation

High temperature hot oil pump before installation to carefully check the number of assembly sealing parts is sufficient, Po Taibang components are damaged, especially the dynamic and static ring without bumps, cracks and deformation defects. If there is a problem, repair or replace the spare parts. Check the chamfering of the sleeve or gland is appropriate, if not meet the requirements must be trimmed.
The tightening gland should be carried out after the coupling is found. Bolts should be evenly tightened to prevent gland section deflection, with a feeler or special tools to check the points, the error is not greater than 0.05 mm. Check the gland and shaft or sleeve diameter with the gap (and concentricity), must ensure uniform around with a feeler to check the point tolerance is not greater than 0.10 mm. High temperature hot oil pump spring compression according to regulations, not allowed to have too large or too small phenomenon, the required error of ± 2.00 mm, the General Assembly increased cross-section than the pressure to accelerate cross-section wear. Too small will result in less than the pressure can not play the role of sealing, spring installed in the spring seat to move after the flexible. With a single spring to pay attention to the rotation of the spring, the rotation of the spring axis should be in the opposite direction of rotation. After moving the ring to be installed to maintain a flexible move, the dynamic ring after the spring should be able to automatically spring back.
High temperature hot oil pump mechanical seal components and their related components of the contact surface, before installation must be cleaned with acetone or anhydrous alcohol. The installation process should be kept clean, especially dynamic and static ring and auxiliary sealing components should be no impurities, dust. Static and static ring surface coated with a layer of clean oil or turbine oil.