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IH chemical pump mechanical seal to use matters needing attention
IH chemical pump mechanical seal Note This model pump can be installed under different conditions of use of different forms of mechanical seals (such as the built-in single-end balanced and unbalanced, double-ended balanced and unbalanced, external mechanical seal Etc.) Depending on the type of seal used, the method of use differs from that of the concrete. For details, please refer to the Mechanical Seal Installation Instruction, GB3215-82, "General Technical Requirements for Centrifugal Pumps for Refineries, Chemical and Petrochemical Processes Here, just to note a few general things to note. 1, Mechanical seals are generally used in clean, non-suspended media. Therefore, the newly installed pipe system and liquid storage should be carefully washed out to prevent the solid impurities from entering the mechanical seal face and thus failing the seal. 2, in the medium easy to crystallize, the use of mechanical seal should be noted that regular flushing. Before restarting after parking, clean the crystals on the mechanical seal. 3, remove the mechanical seal should be careful not to use hand hammer, iron and other percussion, so as not to damage the dynamic and static sealing surface. 4, if there is dirt can not be demolished, should try to remove dirt, rinse and then remove, so as not to damage the sealing element. 5, Before installing the mechanical seal, check all sealing elements for failure or damage, if any, should be re-repaired or replaced. 6, should be strictly checked moving ring and stationary ring relative friction sealing surface, does not allow any minor scratches, bumps and other defects. All other parts, including pump body, impeller,. Seal chamber before assembly should be washed clean, especially the dynamic and static ring end surface, to clean, soft cloth or cotton yarn carefully wipe clean, and then coated with a layer of clean grease or oil. 7, the assembly should pay attention to eliminating bias, tighten the screws, tighten evenly, Se-free deflection, the seal failure. 8, Correctly adjust the amount of compression spring, the pump is installed after the hand to move the rotor, you should feel the seal spring has a certain amount of compression, but also brisk, flexible rotation without clenching feeling. If you feel too tight or disk does not move, it should be appropriate to loose some. 9, on the external flushing mechanical seal, start flushing fluid should be opened before the seal cavity is filled with sealing liquid. Parking, stop the pump first, after the closure of sealing fluid.