Leaks that occur during static pressure test

1. Cover the granular impurities when the end surface is installed.

2. During the installation of the sealing end face, there is deformation, bump and damage during the installation process.

3. The sealing end surface is not tightened because the positioning screw is loose or tightened.

4. The accuracy of the high temperature gear oil pump is not enough to cause the end surface to not fit.

Periodic or disconnected leakage

1. Periodic vibration of rotor components; solution: find the reason and eliminate it.

2. The pressure in the sealing cavity often changes greatly; the solution: stabilize the process operation conditions.

3. Excessive axis of the rotor component; solution: adjust the thrust bearing, and the axis of the axis does not exceed 0.125 mm.

Recurring leakage

1. The vertical deviation of the dynamic sealing end surface and the center line of the axis is too large, and the relative balance of the dynamic and static ring covers is too large. Solution: Adjust the seal end surface.

2. The width of the high temperature oil pump sealing end surface is too small; the solution: increase the width of the seal end surface, and increase the force of the spring accordingly.