QDX(P).QX(P) Stainless Steel Submersible Pump

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Production Introduction:
This model of pump is vastly used for aquariums, mine enterprises, gardens, family spray and irrigation, watering flowerand flush. It is characterized with compact sizes, light weight and convenient use. The float switch can automatically control on and off without people’s supervision. It is also equipped with 1-phase capacitance-operation asynchronism motor.or 3-phase asynchronism motor, the protector in which can automatically cut off the power when it overheat or overcurrent, thus guarantee the security and reliability of pump’s operation even in the atrocious environment.

Function and feature:
Model QDX(P) Stainless steel casing submersible pump is vastly used for aquariums, mine enterprises, gardens, family spray and irrigation, watering flower and flush. It is characterized with compact sizes, light weight and conbenient use. The float switch can automatically control on and off with the chage of water level. It is also equipped with 1-phase capacitance-operation asynchronism motor, or 3-phase asynchronism motor, the protector in which can automatically cut off the power when it overheated or overcurrented, thus guarantee the security and reliability of pump’s operation even in the atrocious environment.

Condition of usage:
1.The depth of the electrical pump below the water is no more than 5m;
2.The temperature of the water is no higher of 40*C ;
3.The PH figure of the water is between 6.5-8.5;
4.The grain diameter of the solids in the water is no bigger than 0.2mm;


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Q:Filter backwash pump for what use, what is the principle of work ah?
Regeneration of the filter medium is required to regain the filtration capacity of the medium. The regeneration process is mainly accomplished by the backwashing pump (the backwash pump is not a special pump, referring to the pump for the completion of the process). The working principle is through the cleaning liquid from the downstream of the filter into the backwash pump (alkali, acid and water), reverse flushing filter medium, cleaning liquid discharged from the upstream, this process can be attached to the dielectric surface and internal impurities washed away.
Q:Why is the flow of the pump too small will occur cavitation phenomenon?
Why is it easy to produce cavitation when the inlet flow of pump is lowered?This is because the main performance parameters such as the head, power and efficiency of the centrifugal pump are not fixed, but vary with the flow rate. The curve drawn on a coordinate paper is called the performance curve or characteristic curve of the centrifugal pump. What happens when the flow rate decreases? The disadvantage of throttling adjustment is that the pump flow is small, and the impeller is easy to cause cavitation
Q:Fire pump control cabinet There are 6 pumps, two indoor fire hydrant pumps, two spray pumps, and two outdoor pumps
Spray pump in addition to remote direct Kai, there are modules to start function, that is, on the cabinet to add control module, bus linkage pump, in addition to the pressure switch, directly pumping function, a total of three functions.
Q:Working principle and diagram of axial piston pump with pressure compensation variable
Working principleThe main part (see section structure) the transmission shaft drives the rotating cylinder, the plunger seven uniform distribution on the cylinder to rotate around the shaft center line through the center of the spring will be slippery boots column components in the variable pressure in the head (or swash plate). In this way, with the rotation of the plunger cylinder for reciprocating motion complete, oil absorption and oil pressure action.
Q:Does the control cabinet of the fire control pump need to be related to the fire control room?
Automatic sprinkler, which is mostly used in this device or high water tank, the whole set of equipment must meet the most unfavorable point (the farthest the highest point of water) water pressure of the faucet.
Q:No negative pressure water supply equipment, both the main pump and auxiliary pump, power is not the same
1) microcomputer frequency conversion control cabinet2) water pump unit3) current stabilizing compensator4) vacuum suppressor5) all kinds of pipe fittings, valves and so on
Q:What are the internal losses in centrifugal pumps? How did they come about?
Due to the friction of the bearing, the friction in the stuffing box, and the losses caused by the rotation of the impeller (the loss of the roulette wheel);
Q:How many concrete pump tube diameter
The pump tubing diameter is 125MM general concrete or mortar pump tube diameter is 80MM fine stone
Q:Water pump does not produce water, what are the reasons?
The reason why centrifugal pump does not produce water:1. pump inlet or sink, water tank water shortage.2. water pump pipe blocked or valve not open.
Q:How does the centrifugal pump pump and cut the pump?
Turn on the motor, observe the motor current, turn from high to low, observe the pump outlet pressure, and the pressure rise;Slowly open the outlet valve, so that the pressure drop slowly, the current slowly rising to the stable, the outlet valve to the maximum;Check the pump operation, stuffing box leakage, current, whether or not the rated current, motor, bearing temperature is normal, whether or not abnormal sound.

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