AC Submersible Pump for Deep Well

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Loading Port:: Ningbo

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 35000台 unit/month

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For countryside lifting water from wells,water supply and drainage of farmland, garden,and dailylife. Drainage of industry ponding,building construction and breeding.

OPERATING LIMITS:
Trans medium PH 6.5-8.5
Fluid temperature limit: <40 oC
Max ambient temperature: 40 oC
Operating depth: 5m

STRUCTURAL CHARACTERISTICS:
Insulation Class:E Protection Class: IPX8

TYPE	Submersible Pump
MODEL	QDX1.5-32-0.75A	QDX7-18-0.75A	QDX30-6-0.75A
power(HP)	1	1	1
power(Kw)	0.75	0.75	0.75
RATED flow	1.5 M³/H	7 M³/H	30 M³/H
Inlet/Outlet	1	1.5	3
Gross Weight(kg)	14	14	16
Packing Dimersion(mm)	420200220	430195250	465215275

Q: Know flow and lift how to calculate the pump power?: The pump power (kw) ={9.61* flow (cubic meters per second) * head (m)}/.Where ETA is device efficiency, including mechanical, electrical loss and other factors, generally between 55%~80%. The smaller the pump, the lower the efficiency.

Q: How many millimeters is the diameter of the water outlet of the four inch pump?: This question is of no practical significance. The user does not care about this figure. The concern should be the nominal diameter, which is fitted with flanges and pipes. Moreover, the pump shell is cast iron, the inside diameter is not processed, and there is no matching parts, there is only one manufacturing size.

Q: What are the reasons for sealing damage of centrifugal pumps?: Two, cavitation. Cavitation (mainly from a thermal centrifugal pump).Because the medium is hot water, the water temperature is too high to produce steam, the gas in the pipeline enters the pump cavity height, and the part of the gas can not be discharged, thus causing water shortage to run, the machine seal dry grinding is invalid, and the cavitation erosion device is not available.Process: replace the machine seal.

Q: What is the lift of diaphragm pump?: Diaphragm pump lift is different from the centrifugal pump, refers to the diaphragm pump can raise the height of water, the unit is meters water column. Lift depends on the size of the outlet pressure, the pressure per kilogram is equivalent to 10 meters height

Q: What is the function of a submersible pump?Do you have any knowledge about submersible pumps?.: The working principle of submersible pumpBefore the pump is opened, the suction pipe and pump must be filled with liquid. Open the pump, the impeller rotating speed, which leaves the liquid together with the rotation under the action of centrifugal force, the left outside impeller injection, injection of the liquid in the pump shell gradually slow the spread of indoor speed, the pressure gradually increased, and then from the pump outlet, the outflow discharge tube. At this time, in the leaves at the center of the vacuum area of low pressure liquid was thrown to the surrounding formation there is no air and no liquid, liquid pool at the surface of the liquid under the action of atmospheric pressure, through the suction pipe into the pump, the liquid is continuously pumped up from the liquid pool is also continuously from the outflow discharge tube.

Q: What are the constant pressure pumps?: Chlorine booster pumpThe pressure range of chlorine booster pump is large, and different pump can be used to obtain different pressure area. The input air pressure is adjusted and the output pressure is adjusted accordingly. High pressure can be reached, gas 90Mpa. Wide range of flow, for all types of pumps only 0.1Kg pressure can work smoothly, at this time to obtain the minimum flow, adjust the intake volume can be obtained after a different flow. Easy to control, from simple manual control to fully automatic control, can meet the requirements. Automatic restart, regardless of what causes the pressure drop in the pressure loop, will automatically restart to supplement leakage pressure and maintain constant loop pressure. Safe operation, gas driven, no arc and spark can be used in dangerous situations.

Q: Is vane pump good or gear pump good?: The main parts of a gear pump are gears that mesh with each other. The meshing driving gear and the driven gear are respectively arranged on two parallel rotating shafts. Because the gear teeth enter and exit the meshes, the volume of the teeth is changed, and the suction and discharge effect is formed.

Q: How many square cables does the submersible pump for 7.5KW need?: I=P/ (1.732Ucos phi) =7.5/ (1.732X0.38X0.85) =13A (calculated according to three-phase city power, power factor 0.85).

Q: Common failure treatment of piston pump: x09x09 (3) no connecting key on pump shaft or motor shaft1) break2) missing x091) replace key2) patch keyx09x09 (4) pump internal slide vice stuck1) the clearance is too small2) parts accuracy is poor, assembly quality is poor, gear and shaft coaxial deviation is too large; plunger head clamping; blade perpendicularity difference; rotor pendulum difference is too big, rotor slot has wound or blade has scar, force after fracture and stuck

Q: Attention should be paid to the use of pumps?: To carefully check whether there is a crack impeller, impeller fixed in the bearings are loose, if there are cracks and loose, hungry phenomenon should be promptly repaired, if the pump impeller above the soil should also be cleaned

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