The working principle of mechanical seals for mechanical seal inside without any impurities.Thoroughly cleaning before assembling mechanical seal ring and static ring, shaft sleeve, etc.Focusing on the following aspects:

1. The dynamic and static ring surface exists defects such as scratch, crack, these flaws will cause serious leakage of mechanical seal.Conditional can use a special tool to check the sealing face whether level off, sealing surface uneven, pressure water will enter the assembly of mechanical seal ring sealing surface activity, separate of dynamic and static ring, mechanical seal failure.When necessary, can make tooling hydrostatic test before assembly.

2. Check the action whether defects affect the seal ring.Such as dynamic and static ring seat with dynamic and static ring gasket surface defects such as whether there is a scar.

3. Check if compensation spring mechanical seal damage and deformation, if stubborn coefficient change.

4. Check the sealing sleeve defects such as the existence of burr, the trench.

5. Clean the check all gasket exists defects such as cracks, porosity, measurement of synthetic diameter is within the scope of the working poor.

6. Mechanical seals with water pump send agencies also check screw pump helix of whether there is a crack, break the blemish such as.

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