Submersible sewage pump mechanical seal equipment 9 major precautions

1, all kinds of sewage pump mechanical seal equipment before operation to carefully check the number of mechanical seal parts is not in line with the needs of all components without damage, especially dynamic and static ring whether bumps, cracks, deformation, etc. defect. If you have questions, need to modify or replace the new pieces. 2, check the sleeve or gland chamfer is not appropriate, do not meet the needs of the time necessary repair. 3, submersible sewage pump mechanical seal equipment before operation, it is necessary to clean and clean the mechanical seal components and related equipment contact surface. Equipment should be kept clean during the process, in particular, dynamic and static ring surface and its auxiliary sealing elements should be free of impurities, dust. Dynamic and static ring surface coated with a layer of clean mechanical oil or turbine oil. 4, in order to prevent the gland end face deflection, the coupling is corrected, the pump mechanical seal gland bolts should be uniform, with a feeler check each point, the fault is not greater than 0.05mm. 5, with a feeler gauge pressure Cover with the shaft or sleeve outer diameter of the collaborative open space (ie, concentricity), adjacent to be uniform, each patient's tolerance is not greater than 0.l0mm. 6, the amount of spring tightening should comply with the rules, not allowed to have too large or too small , Allowable negligence ± 2,00mm. When the amount of tightening is too large, the specific pressure of the end face increases to accelerate the wear of the end face; when it is too small, the specific pressure is scarce and the sealing effect can not be achieved. Spring loaded into the spring seat should be active. Equipment single spring, attention should be paid to the direction of rotation of the spring, the direction of rotation should be opposite the axis of change. 7, equipment moving ring, it should ensure that the active move, move the ring after the spring should be able to automatically spring back. 8, the device static ring, the first set of seals in the back of the stationary ring and then into the mechanical seals within the seal cover, stationary ring end cover and the centerline of the vertical line should meet the technical needs of static ring back anti-rotation groove response Anticipate resale, but can not contact. During equipment, do not damage the stationary ring end face. 9, the equipment process, never allowed to hit the sealing element with something to prevent the sealing element damage.

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