Single Stage Single Suction Centrifugal Pump

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General Description
Single stage single suction(axial suction) centrifugal pump, deliver clean water or other liquid which chemical & physical feature similar with clean water, the temperature less than 80℃.Inlet pressure less than 0.6MPa, it suitable for delivering water in industry, city and farm irrigation.
Heat centrifugal pump, the serial pump design reasonable, installing & repairing conveniently, it suitable for delivery clean water or which chemical & physical feature similar with clean water. Inlet pressure less than 0.6MPa, the temperature not more than 130℃.n It can equipped with boiler and heat-changer, as circulating water pump or feed pump, also used to supply water, for example, supply water in city and mine etc.  

Single stage single suction centrifugal oil pump, suitable for delivery no corrosive liquids and petroleum products, which not contain solids and the viscosity less than 120Cst. Also used to deliver clean water or other liquid which chemical & physical feature similar with clean water, the temperature less than 80℃.Inlet pressure less than 0.6MPa

Performance range
Capacity Q : 6.3~400m3/h        
Head H : 5~125m

Structure

Pump designed according to National Standard ISO2858.Main parts are pump casing, pump cover, impeller, shaft, sealing parts and cantilever parts etc.
Pump designed at full back pullout, the pump casing and pump cover separate from impeller back face, Pump casing and pump cover are combined a working house; impeller, shaft, and rolling bearing are combined a rotor; cantilever support and bearing parts support the rotor. To balance the axial force, impeller rear cover have balance holes, impeller have wearing. If the axial force small, the impeller rear back hasn’t wearing and balance holes.
Bearing: adopt two radial ball bearing,installed in cantilever support, to support pump shaft, and bear pump axial force and radial force.
Seal:

A: adopted packing seal, in seal, shaft sleeve installed to protect shaft; mechanical seal can be used according to user requirement.
There are two types: packing seal and mechanical seal, in pump cover have water sealing hole, outer water sealing hole and cooling house.
B: adopted mechanical seal; packing seal can be used according to user requirement.
Type of sealing and cooling has several kinds as follow:
(1) packing sealing: itself water sealing without cooling water
(2) packing sealing: itself water sealing with cooling water
(3) packing sealing: outer water sealing without cooling water
(4) packing sealing: outer water sealing with cooling water
(5) mechanical seal: without cooling water
(6) mechanical seal: with cooling water

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Q:QDX is a submersible pump. What does "X" mean?
QDX is a submersible pump model, its specific meaning is:1.Q: submersible pump.2.D: single-phase power supply, three-phase electricity is not marked.3.X: pump, pump type is not marked.Complete submersible pump model will generally add rated flow, rated lift and motor power rating. For example: QDX40-8-1.5, meaning with single-phase 1.5KW motor, rated flow of 40 cubic meters / time, the rated lift of 8 meters under the pump submersible pump.According to the different relative position of pump and motor, submersible pump is divided into pump type and pump type. The pump submersible pump motor in the above, below, this structure greatly reduces the radial size of the pump, so much for submersible pump and small submersible pump operation. Submersible pump submersible pump on top of the pump in the following, it is divided into two types of internal and external type. The submersible pump carries the liquid through the annular flow passage around the motor, then cools the motor and then flows out of the pump outlet. Even though the pump is near the drain sump, there is no need to worry about the temperature rise of the motor, so the application is becoming wider and wider. External pump submersible pump directly from the pressurized water chamber after the impeller or diffuser outlet of discharged liquid, motor is cooled by liquid pumping. As the lower pump structure can work in a relatively shallow liquid, it is often used in submersible pumps for operating surfaces, especially the main structure of large caliber submersible pumps.
Q:Intelligent pump controller, water is full water transfer automatically shows the next pool of water shortage, what is the matter?
The intelligent controller of water pump is full of water and automatically shows the shortage of water in the lower pool. The reason is that the sensor is out of order or the line is out of contact. First of all, make sure that the upper limit of your controller is normally open or normally closed. When the upper limit is reached, does this point change? If the original upper limit position is normally open, check the switch and pump insulation.A pump is used to increase the pressure of a liquid or gas, the flow conveying machinery, and "jump" or "flow" is a homonym, is a transliteration of the English pump, is a device used to move liquids, gases or special fluid medium, which is reactive to the fluid machinery. The heart of man and animal can be said to be a natural pump, which carries blood to all parts of the body.
Q:In the design specifications, for example, the water pump requirement is two. What does that mean? Can 3 pumps be opened at once?
Use 2 units and reserve 1 units. You can open 2 at the same time. Can three drive at the same time, depending on your water pipe layout, whether there are three sets of pipes, yes, three units open at the same time.
Q:What are the parameters of the pump price?
First, the brand, brand sound, the price needless to say, second, material, stainless steel and cast iron, of course, not the same priceThird, the size of the motor, the motor determines the parameters of the pump, not motor power, and also imports and domestic.
Q:What does the temperature range of the pump mean?
The range of temperature is less than 135 degrees Celsius, which means that the range of use shall not exceed 135 degrees celsius. Refers to the temperature of hot water, high pressure steam boiler inside the water temperature is more than 100 degrees Celsius, your pump is a high-pressure high temperature water pump, generally used for steam boiler or high temperature waterway system. For reference only.
Q:How to measure the temperature of pump body?
Buy an infrared thermometer
Q:The efficiency of water pump frequency conversion is very low, why?
Pump power frequency operation, speed is rated. Frequency conversion actually adjusts the speed of the pump (the speed becomes smaller), and the flow of the pump moves parallel and downward. As for efficiency, it depends on the operating conditions of the pump. Does it deviate or run to the minimum efficiency position of the flow curve of the pump?.
Q:Relationship between pump voltage and lift?
This is the world's Grundfos pump, if the pump itself support work under the 414V if it didn't need to worry about traffic and Yang Cheng, if the pump does not support the long time operation of the pump must lift and flow impact, and the multi-stage pump if it is Gao Yangcheng in the use of low lift it is also easy to burn the motor,
Q:Pump frequent start will reduce the service life, I ask what kind of frequency is called frequent start?
Personally think that the quality of different motors have different effects on the motor, you can try, try a minute it ruined his frequency is a / S
Q:What's a small soft pipe for a submersible pump in a fish bowl? How do you use it?
Filter pump for oxygen spray. If the filter pump water flow, you can throw oxygen flowers, you can not use. With that pipe, it's loud and kind of

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