Pump the correct steps

Before starting the preparation: 1. Test the motor steering is correct (with the pump marked on the direction), the test time is short so as to avoid dry parts pump internal wear and tear. 2. Open the vent valve to fill the entire body of fluid and close the vent valve when full. 3. Check the various parts are normal. 4. High-temperature type should be run preheating, heating rate of 50. C / hour, in order to ensure uniform heating ministries. Startup: 1. Close the pump outlet valve. 2. Full open pump inlet valve. 3. Start the motor and observe if the pump is running correctly. 4. Adjust the outlet valve opening to the required conditions, such as users at the pump outlet equipped with flow meter or pressure gauge, the outlet valve should be adjusted by the opening of the pump performance parameters listed in the rated point on the operation, such as users In the pump outlet is not installed flow meter or pressure gauge, the outlet valve should be adjusted by opening; measuring pump motor current, the motor running within the rated current, otherwise it will cause the pump to overload operation (ie, high-current operation, Motor burnout) is good to adjust the outlet valve open large and small and pipeline conditions. 5. Check the seal leakage, the normal mechanical seal leakage should be less than 3 drops / min. 6. Check the motor, bearing temperature rise ≤ 80. C. Shutdown: 1. Close the outlet pipe valve. Stop the motor. 3. Close the inlet and outlet valves. 4. If the long-term parking, the pump liquid should be exhausted.