Steps for starting and stopping a water ring vacuum pump

1. Startup: Before starting a pump that has been parked for an extended period, it must be turned by hand for several weeks to ensure there are no obstructions or other damages inside the pump. Start-up is carried out in the following order: (1) Close the valve on the intake pipe ； (2) Start the motor (the motor’s rotation direction must be correct) ； (3) Open valve 6 on the water supply pipeline and supply water to the pump until the specified requirements are met. (4) When the pump reaches the ultimate vacuum or maximum pressure, open valve 4 on the intake pipeline, and the pump begins to operate normally. (5) Adjust the packing gland so that water drips out in drops, which is the ideal condition. (6) Adjust the water supply volume of the pump using valves to ensure that the pump operates under the required technical conditions, minimizing power consumption, meeting the performance specifications, and fulfilling the operational requirements. (7) Adjust the water flow to the feed water separator so as to ensure the technical specifications required by the pump with minimal water consumption. (8) When the pump operates at its maximum pressure, an explosion may occur inside the pump due to physical forces; however, the power consumption does not increase. The valve on the intake pipe can be opened to allow a small amount of gas to enter, and the explosion sound will then disappear. If the bursting noise does not disappear and power consumption increases, it indicates that the pump has failed, and the machine should be stopped for inspection. 22. Parking: To park, follow these steps in order: (1) Close the valve on the intake pipe. (Close the valve on the exhaust pipe when using it as a compressor.) (2) Close the water supply valve to stop feeding water into the pump. (3) Turn off the motor. (4) Close the make-up water valve. (5) If the machine is parked for more than a day, the water in the pump and the air-water separator must be drained to prevent rust. Note: In winter, the working fluid must be drained every time the equipment is parked for an extended period to prevent freezing and damage to the equipment.