QJ Multistage Deep-well Submersible Pumps
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 100 set/month
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1. Product overview :
QJ series deep well submersible waterpumps are widely used in farm irrigation, sprinkler irrigation, getting water from well, water supply and drainage system for industrial and civil building, water diversion project in hilly and mountain areas water drainage project in at low-lying areas, water supply and drainage in urban and rural's mining enterprisesand various ther kinds of water conservancy facilities. Its features are that the Motor and pump are assembled into a whole, so that it is simple in structure, convenient to assemble and disassemble, easy to use and maintain safe to operate. Otherwise, it covers an small area and does not pollute water.
2. Operation parameters :
(1). Flow range : 10-500 m3/h
(2). Lift range : 10-600m
(3). Applicable well diameter : φ175-φ400mm
(4). Diameter scope:φ32—φ203mm;
(5).Temperature range: -15—100°C.
3. QJ using condition:
(1) 380V voltage deviation is no more than ±5%,frequency is 50HZ, three-phase power deviation is no more than ±1%.
(2) Motor cavity must be filled with water.
(3) The first stage impeller of the pump should be more than 2mm below the moving water surface, pump unit should be less than 70m below the static water level.
(4) The distance from the motor bottom to well bottom must be more than 3m.
(5) Water temperature should be no more than 20°C.
(6) Sand content of the water ( by mass) should be no more than 0.01%.
(7) PH value of water 6.5-8.5.
(8) Hydrogen sulfide content of the water should be no more than 1.5mg/L.
(9). Chloride ion content of the water should be no more than 400mg/L.
(10). Water yield of water source should ensure the requirements of pump continuous working.
4. Material
Impeller: Cast iron HT200,or stainless steel
Pump bowl: Cast iron HT200,or stainless steel,such as ss304 ss3016
Pump shaft : Cold-drawn steel with chrome plating,or stainless steel SS304 SS316
Motor Seal: Rubber O-ring seal,mechanical seal
Motor regulating sleeve: Rubber
5. FAQ
(1). Can I get trained on CNBM products?
Yes, we provide training courses in our factory (products, general and specific pump technology, hydraulics, and practical applications). Please consult your sales manager or get in touch with our headquarters for more information.
(2). Are your pumps cheaper than those of your competitors?
CNBM aims to give its customers the highest standards of quality and service and delivery times, all at a reasonable price.
(3). How long is your warranty?
Unless otherwise expressly authorized in writing, by specifying a longer period or different conditions, CNBM states that, for a period of twelve (12) months from delivery date, all Products supplied are free from defects in materials and workmanship, and conform to the applicable specifications. Either the delivery documentation or the invoice must be provided to prove delivery date. In absence of such documents, the production date appearing on the product label may suffice.
(4) Are your pumps cheaper than those of your competitors?
CNBM aims to give its customers the highest standards of quality and service and delivery times, all at a reasonable price.
(5) Do you have self-priming pumps?
Yes, our product portfolio also includes two ranges of self-priming pumps: self-priming electric pumps and self-priming side channel pumps.
(6) Is it really necessary to fit a bleed valve for the boxes?
It is always best to have a bleed valve as the gas produced by the fermenting sewage is potentially hazardous.
- Q:What is the lift of diaphragm pump?
- Tell you: diaphragm pump head is liquid through the pump energy obtained is called lift it, and flow and pump speed, a liquid density is generally 1 kg is 10 meters lift, horizontal pipeline 10 meters 1 meters lift, a 90 degree bend is 1 meters.
- Q:Centrifugal pumps for normal operation, is it reasonable to install valves on their inlet lines? Why?
- Reasonable, no valve, how to debug, overhaulGenerally installed on imports of valves of relatively large Cv value
- Q:You'd better point out the details.... There are 2 best ways of experience and formulaCan you say a simple point, such as multi-stage pump, when the pump is higher than the motor, 30 wire is the next mouth how to do?
- For the first time, the pump and motor were placed on the base and not fastened (Cu Zhaozheng);Second times, the pump and motor have been tightened, the inlet and outlet flange bolts are not fastened;Third times, the pump runs 24 hours later.
- Q:What are the failures and causes of the replacement of the fuel pump assembly?
- Failure cause:1) the gasoline pump is too thick with the gasket at the junction of the axle box.2) pump film rupture or pump film and pump shell combination of sealing is not strict.3) the oil inlet valve is stuck or sealed badly.4) severe wear of the rocker arm, reducing the pump film stroke.5) the pipeline from the gasoline tank to the gasoline pump is not smooth, or the pump film spring passes.
- Q:Pneumatic diaphragm pump compressed air pressure is 4 kg, the discharge pressure is how big?
- Generally slightly lower than 0.4MPa, Zai 0.35Mpa or so, if the outlet is blocked, the outlet pressure will equal 0.4MPa
- Q:The difference between submersible pumps and centrifugal pumpsWhat's the difference between the two? What is applicable and what?
- 1. submersible pumpsA very wide range of water treatment tools. Unlike ordinary water pumps, it works underwater, while the pump works mostly on the ground.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.Basic parameters of submersible pumpIncluding flow, lift, pump speed, matching power, rated current, efficiency, diameter and so onSubmersible pump main application and scope of applicationIncluding construction, construction, drainage, agricultural irrigation and drainage, industrial water recycling, urban and rural residents cited water supply, and even rescue, disaster relief and so on
- Q:Operating procedures for measuring pumps
- start-up1. Adjust the stroke indication to zero by adjusting the nut or handle with the rotary stroke.2 open the outlet valve.3. Open the inlet valve, pump, exhaust from the high point, exhaust from the relief valve, the breather valve.4, point motor, check the operation of the pump.5. Start the motor.6, without pressure on the premise, every 15 minutes to improve the stroke 20%, if there is no pressure, do not substantially improve the stroke.Note: (1) whether the sound or vibration of the pump is abnormal (2), whether the stroke adjustment is automatic or not
- 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 to adjust the flow of piston pump?
- Changing the size of the current in the solenoid valve can change the angle of the tilting element, and then change the stroke length of the plunger in the pump cylinder, that is to say, to change the flow of the pump. An inclined angle is called a quantitative pump, and the angle of inclination can be changed, which is called a variable pump.
- Q:What is a positive displacement pump? He Weizheng displacement?
- The principle and structure of positive displacement pumps are similar to those of hydraulic motors. Positive displacement is the pump outward to provide flow and pressure, that is, conventional pumps. A negative displacement pump is a hydraulic motor that rotates by external pressure and flow.
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Send your message to us
QJ Multistage Deep-well Submersible Pumps
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 set
- Supply Capability:
- 100 set/month
OKorder Service Pledge
OKorder Financial Service
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