Submersible pump compact and lightweight, in rural areas play an important role in production and life, should pay attention to the following points in use. First, the purchase of submersible pumps should pay attention to its model, flow and lift. If the specifications used inappropriately, will not be able to get enough water, can not play unit efficiency. In addition, we should also clarify the direction of rotation of the motor, some types of submersible pump forward and reverse can be water, but reverse the small amount of water, the current is large, the reverse will damage the motor windings. To prevent submersible pump leakage in the water when working under the accident caused by electric shock, leakage protection switch should be installed. Second, install the submersible pump, the cable should be overhead, the power cord should not be too long. Do not force the cable when the unit is launching, which may cause the power cord to break. Submersible pumps do not sink into the mud, otherwise it will lead to bad heat and burn the motor windings. Third, try to avoid the boot at low voltage. When the voltage is too low, the motor speed will drop. If it is less than 70% of the rated speed, the centrifugal switch will be closed and the starting winding will be closed Power for a long time to heat or even burn the windings and capacitors. Rotor pump Do not switch the motor frequently, this is because the pump will stop when the flow back, if immediately start, the motor load will start, leading to the starting current is too large and burn the winding. Fourth, do not allow long-term overload pump operation, do not pumping large amounts of water, dehydration pump operation time should not be too long, so as not to overheat the motor and burned. During the operation of the unit, the operator must keep an eye on whether the working voltage and current are within the values ​​specified on the nameplate. If not, the motor should be stopped to find out the cause and eliminate the fault. Fifth, usually more than check the motor, found under the crack, rubber seal ring damage or failure, etc., should be promptly replaced or repaired to prevent water penetration into the machine.
Angle Valves
Globe Valves and angle valves are designed for throttling or regulating flow in commercial and industrial applications. Bronze, cast iron, or cast ductile iron materials. Threaded, flanged, or solder end connections.
Angle valves for use in commercial and industrial applications. Typical services include hot and cold water, HVAC, steam, compressed air, gas and other general utility services.
Vacuum angle valve is used for turn on or shut off the airflow in the vacuum pipeline, the applicable media is air and non-corrosive gases.
It has two structures, one is angle type and another is a 3-way type within an ISO-KF or ISO-F various flange end pre-pump port.
a) Small diameter (≤DN50) valve body are precision investment casting.
b) Large diameter (> DN50) valve body are molding shaped seamless steel or steel plate.
c) Bellows sealed structure can withstand 150ºCtemperature, metal sealed structure can withstand 450ºCtemperature.
d) Can install on any position to control the airflow in the vacuum pipeline, as an on-off valve purpose
Angle Valves, Angle Globe Valves, Brass Angle Valve, Zinc Angle Valve
ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.kingsirvalves.com
