ZF Hydraulic & Pneumatic parts Co., Ltd

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The correct starting gear pump steps is introduced

Author : Xiong Date : 11/16/2012 8:50:48 PM
The correct starting gear pump steps is introduced

The correct starting gear pump is very important, or you will make pump damage, here are some general knowledge before starting, please pay attention to:
A, pump starter preparation:
1. Test gear pump motor steering is correct (and pump body specified in the direction), the test time to short lest make pump internal rotation of wear parts for lack of fluid lubrication and dry grinding damage; 
2. Open the gear pump exhaust valve make liquid filled the entire pump body, wait for after full closed exhaust valve;
3. Check each part is normal;
4. High temperature type should be preheated, rate of temperature 50 ℃ / hour, to ensure that each component is heated evenly.
Second, the gear pump starting:
1. Close the gear pump outlet valve;
2. Open gear pump inlet valve;
3. Starting motor, observation pump operation is normal;
4. Adjust the outlet valve opening with required conditions, such as user in the gear pump with flow or pressure gauge, should adjust the export valve opening make pump in the performance parameters listed below rated point operation, such as user on pump discharge is not installed flow or pressure gauge, should adjust the export valve opening; Measuring pump motor current, rated current of motor in operation, otherwise, will cause pump overload operation (i.e. large current operation, to make motor burnout) adjust good export valve open big with small and line condition about;
5. Check in the leakage of the shaft sealing situation, normal when mechanical seal leakage should be less than 3 drops/points;
6. Check the motor, bearing place or less temperature 80 ℃.
Three, pump stop:
1. Close the gear pump outlet pipe valves;
2. Cut off power source;
3. Close pump imported line valve;
4. Such as long-term stop pump, the pump should be as liquid in the row.

The obove: 
Gear pump due to wear appeared leakage causes and product features