Small submersible pump compact and lightweight, in order to avoid accidents during use, extend the service life, to play its excellent performance, use should pay attention to the following seven points: 1, install leakage protector leakage protector also called HPG, its role from "Lifeguard" these three words can understand. Because the submersible pump works underwater, it is easy to cause electric leakage due to leakage and even cause electric shock accident. If leakage protector is installed, the leakage protector will cut off the power of the submersible pump as long as the leakage value of the submersible pump exceeds the operating current value of the earth leakage protector (usually not more than 30 milliamps), so as to avoid electric leakage and waste of electric energy to ensure safety. 2, the power supply voltage abnormalities do not turn off rural areas due to low voltage power supply line is longer, the voltage is too low at the end of the line is common. When the phase voltage is lower than 198 volts, the line voltage is lower than 342 volts, the submersible pump motor speed drops, when less than 70% of the rated speed, start the centrifugal switch will be closed, resulting in a long time winding start energized or even burn out Windings and capacitors. In contrast, overvoltages cause the motor to overheat and burn the windings. Therefore, the submersible pump operation, the operator must always observe the power supply voltage value, if less than 10% of the rated voltage below 10% above the rated voltage, the motor should be stopped to find out the cause and troubleshooting. 3, do not allow submersible pump long-term overload work To avoid the long-term overload pump submersible work, do not pumping large amounts of water and keep the current value is observed on the nameplate if the value is found, if the current is too large, should stop checking . In addition, the pump running time dehydration should not be too long, so as not to overheat the motor and burned. 4, to avoid frequent switching Do not switch the submersible pump frequently, this is because the pump will stop when the flow back, if immediately start, will make the motor load starts, leading to the starting current is too large and burn the winding. As the start-up current, frequent start-up will also burn the submersible pump motor windings. 5, cable installation and submersible pump insulation resistance requirements When installing submersible pump, the cable should be overhead, the power cord should not be too long. Submersible pump into the water or made when not to force the cable, so as not to cause the power cord rupture. Submersible pumps do not sink into the mud during work, otherwise it will lead to poor motor cooling and burn motor windings. When installed, the insulation resistance of the motor should not be less than 0.5 megohms. 6, the direction of motor rotation should be correct to find out the direction of rotation of the motor, there are many types of submersible pumps forward and reverse when the water can be, but reverse the small amount of water, the current is large, the reversal of a long time Damage to motor windings. 7. Qinqin ground see problems found in a timely manner to repair the motor often check, if found under the crack, the rubber seal ring damage or failure, etc., should be promptly replaced or repaired to avoid water infiltration submersible pumps.
Electric Gate Valve
An electric Gate Valve is a type of valve that uses an Electric Actuator to open and close the gate of the valve. The gate is a flat or wedge-shaped piece that moves perpendicular to the flow of the fluid. When the valve is open, the gate is lifted or pushed aside to allow the fluid to pass through. When the valve is closed, the gate is lowered or pressed against the valve seat to prevent the fluid from flowing.
Electric gate valves are commonly used in industrial applications where precise control of the fluid flow is required. They are often used in pipelines, water treatment plants, oil and gas refineries, and chemical processing plants. The electric actuator allows for remote control of the valve, which can be operated from a control room or a computerized system. This makes it easier to monitor and adjust the flow of the fluid, which can improve efficiency and reduce the risk of leaks or spills.
Electric Gate Valve,electric actuated gate valve,electric actuator for gate valve,motorised gate valve Description
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