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Start, Stop And Maintenance Of Split Casing Water Pump

- Nov 17, 2017 -

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Preparation Before Split Casing Pump Starting

1.Moving the motor vane by hand, the impeller shouldn not rub, the rotation is nimble. 

2.Open inlet valve and discharge valve to fill whole pump with liquid, then close discharge valve after it is full. 

3.Start double suction pump by hand, to make lubrication enter into mechanical seal surface. 

4.Start motor, check revolving direction is right or not. 



Double Suction Pump Start and Running

1.Full-open inlet valve, close the valve of discharge pipeline. 

2.Turn on power sourve, open the valve on discharge pipeline to regulate work condition after revolving speed of pump keep normal. 

3.Observing gauge data carefully, checking the leakage condition of shaft's seal. When it is normal, the leakage quantity of mechanical seal is <3 drop/minute, the leakage quantity of stuffing is <10 ml/h 

4.Check the motor and bearing, its tempreture should be <70℃, if they aren't normal, it should treat in time. 


Stop of Split Casing Pump

1.Close the valve of discharge pipeline, turn off power source

2.Close the valve of inlet 

3.If ambient tempreture is lower than 0℃, all the liquid in pump should discharge to avoid freezing and cracking. 

4.If unit keeps stop condition for long time, we should disassemble pump and coat rust-ptoof grease on it.