Axial flow pump packing seal (packing) when installed technical requirements. Installation of packing seals - packing shall be in accordance with the technical documentation. If it is not expressly provided, it shall meet the following requirements:
1, check the axial flow pump pump shaft at the sealing part of the radial runout, the axis of the allowable radial runout in the range of 0.03 ~ 0.08mm;
2, liquid seal ring and the diameter of the sleeve gap is generally 1.00 ~ 1.50mm, liquid seal ring and packing box diameter gap is generally 0.15 ~ 0.20mm;
3, packing gland and the diameter of the sleeve gap is generally 0.75 ~ 1.00mm, the gap should be uniform;
4, packing gland and packing box diameter gap is generally 0.10 ~ 0.30mm;
5, with the bottom of the filler, the bottom ring and the diameter of the sleeve gap is generally 0.70 ~ 1.00mm;
6, packing pressure, the liquid seal into the liquid hole should be aligned with the liquid seal, or liquid seal ring slightly to the outside;
7, for the packing of the packing, with a shaft with the same size of the first stick, the filler wrapped around it, and then cut off the knife, the incision is best to be 45 ° slope.
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