1. before the start of the preparatory work and notes

 a. comprehensive inspection of mechanical seals and ancillary equipment and piping installation is complete, compliance with technical requirements.

 b. before the start of mechanical seals for static pressure test, check whether the mechanical seal leakage. If the leak more, should find out the reason for trying to eliminate. If still ineffective, should be demolished and re-check the installation. Hydrostatic test pressure usually with 2 to 3 kg / square cm.

 c. rotation by turning the pump, check whether the light evenly. Such as turning difficult or does not move when the assembly should check whether the size error, the installation is reasonable.

 2. Installation and outage

 a. shall remain sealed before the start of cavity filled with fluid. Solidification of the medium for transmission, the application will be sealed vapor chamber heat to medium melt. Start before turning to prevent a sudden start caused by soft ring fragmentation.

 b. For use outside the seal oil system pump mechanical seal, seal oil system should be launched. After stopping the last stop the seal oil system.

 c. heat pump can not immediately stop after the outage seal oil and seal chamber cooling water seal at the oil temperature should be reduced to below 80 degrees, it can stop the cooling water to avoid damage to the seal parts.

 3. operation

 a. pump starts if minor leakage should be observed for some time. 4 hours continuous operation, such as, leakage is still not reduced, they should check the pump stops.

 b. the operation of the pump pressure should be stable, the pressure fluctuation is less than 1 kg / square centimeter.

 c. pump in operation, should avoid taking the time to the phenomenon of dry friction in order to avoid sealing surface and seal damage.

 d. Always check the seal condition. Operation, when the leakage exceeds the standard, heavy oil is not more than 5 drops / min, light oil is not more than 10 / min, still no signs of improvement, such as 2-3 days, you should check the pump stops bolt seals.