Household Storage & Organizers Household Storage & Organizers,Storage Cabinet,Storage Drawers,Fabric Storage Bins Changzhou Offistyle Furniture Co., Ltd. , https://www.offistylefurniture.com
Pump debugging
1. Preparation before starting 1.1 Check the import and export method is intact, whether the operation is blocked, pumps and accessories pipeline leaks. 1.2 pump to start the exit method to close the door (self-priming pump excluded), not satisfied with the rotation torque is too large, the pump can be damaged, the motor is also due to excessive current burn easily. 1.3 Open the inlet valve, open the exhaust valve to fill the entire cavity with liquid, and then close the exhaust valve. 1.4 For mechanically sealed pumps, apply hand-slide pump rotor to allow lubrication to enter the mechanical seal face. Avoid mechanical seal dry seal damage caused when starting. 1.5 determine the steering: jog motor, to determine the steering is correct. Usually the motor is three-phase four-wire system. If you reverse, put any two of the wires in tune, so that the motor will be formed forward. 1.6 Hand crank: Rotor components should be flexible rotation, no jamming, friction phenomenon. 1.7 hot water. Heat pumps to warm before starting the pump, preheat rate of not more than fifty photographic hour per hour, 180 degrees crank. 2. Start-up and Operation 2.1 Check again the fully open valve, close the discharge line valve. 2.2 Turn on the power, when the pump reaches the normal speed, then gradually open the valve on the discharge pipe, pay attention to closing the valve running time shall not exceed 5 minutes. Otherwise, bearings. Mechanical seal is easily damaged. 2.3 Adjustment Condition: Let the operating conditions within the scope of the instructions, as close as possible to the design point. As the flow and power generally can not see, so to adjust the pressure (outlet pressure - inlet pressure = pump head) and current within the rated range. 2.4 Check the seal conditions: mechanical seal: 10 drops / min packing seal: 1 to 2 drops / second If more than the standard, should be promptly processed. 2.5 Check the vibration and noise conditions. 3 Parking 3.1 Gradually close the outlet pipe valve, cut off the power. 3.2 If the ambient temperature is below 0 degrees Celsius, the liquid in the pump should be depleted to avoid frost damage.