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Centrifugal pump packing seal assembly technical requirements
Install packing seals, should comply with the provisions of technical documents. If not specified, the following requirements shall be met: 1. Inspect the amount of radial runout of the shaft at the seal part and allow the radial runout of the shaft within the range of 0.03-0.08mm; 2. The diameter clearance between the liquid seal ring and the sleeve is generally 1.00 ~ 1.50mm, the diameter of the liquid seal ring and the packing box clearance is generally 0.15 ~ 0.20mm; 3, the gap between the packing gland and the sleeve is generally 0.75 ~ 1.00mm, the gap should be uniform around; 4, And packing box diameter gap is generally 0.10 ~ 0.30 mm; 5, a packing bottom ring, the diameter of the bottom ring and the bushing clearance is generally 0.70 ~ 1.00 mm; And liquid seal pipe alignment, or liquid seal ring a little biased to the outside; 7, for the roll packing, take a stick with the same size as the shaft, the filler wound on it, and then cut the knife, the best incision Was 45 ° beveled.