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Pump flow rate is the amount of water delivered per unit of time. The pump nameplate on the flow is also known as the design flow, rated flow. Pumps operating at the rated flow and rated head operating efficiency is the highest. When using the pump, shoul
1. Pump severe vibration reason contact electric rotor imbalance or coupling Qianan, bearing wear, twists and turns, change some parts of loose, broken pipe support is not strong. Can adopt adjust, repair, reinforcement, straightening, replacement and oth
Self priming pump operation principle is what ordinary centrifugal pump, if the suction surface in the impeller, the start should be pre irrigation, it is not convenient. Memory in order to pump water, suction pipe imports bottom valve, pump, valve at the
If the device or the use of centrifugal pump, it is possible to occur cavitation. Once the cavitation occurs, the performance will drop, the amount of water is reduced, the impeller damage to speed up, but also accompanied by vibration and noise, etc., an
According to the technology of cable joint technology (Reference), the motor leads out the cable and the matching external rubber cable. View winding (including lead cable) to base insulation resistance not less than 200m Omega. From the wells section vie
Submersible electric pump structure QJ type submersible electric pump is mainly composed of QJ type submersible pump and YQS type submersible motor two. The pump body of the QJ type submersible electric pump is located at the upper end of the motor, the i
Choice of pump speed. According to the principle of the water supply pump, the pump pressure and the speed of the square is proportional to the flow rate and the speed of a Fang Cheng proportional. Therefore, to advance the water supply pump single stage
1. Pump severe vibration reason contact electric rotor imbalance or coupling Qianan, bearing wear, twists and turns, change some parts of loose, broken pipe support is not strong. Can adopt adjust, repair, reinforcement, straightening, replacement and oth
In the mixed flow pump pump shaft penetrates through the pump shell of the local, gap exists between the rotation of the pump shaft and the stop of the pump shell, if not to seal the deal, will make pump casing of high pressure water through the void many
In the mixed flow pump pump shaft penetrates through the pump shell of the local, gap exists between the rotation of the pump shaft and the stop of the pump shell, if not to seal the deal, will make pump casing of high pressure water through the void many
Pump vaporization damage:
1. Episodes of noise and oscillation,
2. Flow components cavitation,
3. Function decrease
Pump vaporization damage:
1. Episodes of noise and oscillation,
2. Flow components cavitation,
3. Function decrease
1. The commissioning of a good pump to the lifting of the re.
2. Don't put the cable when the hoisting rope, no drag!
3. Attention to the installation of anti rotation device is properly installed.
1. Water pump inclined loading, detract from the elbow. Inclined to install the pump or spiral case, the water outlet is on the pond.
2. Reduce the pipeline. Remove 1 meters of steel pipe, 10 hours to save diesel 0.21 kg.
3. The expansion of the outlet
1. The use of excellent hydraulic model and advanced manufacturing process, greatly improve the performance and service life of the pump.
2. Because the seal thinks fit and use of materials for hard alloy and the fluorine rubber machinery tightly closed
The use of multi-stage centrifugal pump friends are aware that the multi-stage centrifugal pump isolation sets are always easy to damage, we will have a question which is why? To know what is this problem, we should first know our multistage centrifugal p
We all know that the mixed flow pump is a pump body of a different type, the function and characteristic of is combined with the performance and characteristics of centrifugal pump, also with axial flow pump the some properties and characteristics, and th
People familiar with the pump for mixed flow pumps must be no stranger, but also a lot of people even used mixed flow pump. But in the use of mixed flow pump in the process some people will find a strange imagination is why the same pump different people
Mixed flow pump is more commonly used as a pump, than speed range of centrifugal and axial flow pump in between, generally in the 300r/min~500r/min, lift is also a range of axial flow pump and centrifugal pump in between, but the flow ratio of centrifugal
Mixed flow pump is composed of a centrifugal pump and axial flow pump, the liquid is mainly through the centrifugal force mixing and axial thrust to complete, so the name of the mixed flow pump.
Chemical mixed-flow pump is mainly used in large capacity, low head, can transport corrosive neutral cleaning medium or medium containing particles.It to economic effectively conveying flow, low head, uniform or containing a certain particles, chemical, n
Diesel engine fire pump in the structure is more complex than the electric water pump, so the preparatory work before the start is also more complicated. Here let us look at what is the preparation work must be done.
Vertical diesel fire pump is the use of special hydraulic design and structural design, with a flow of pressure grade than the ordinary centrifugal water pump is more suitable for the selection of building fire water supply system, flow pressure character
Selection of fire pump for diesel engine:

1. The pump shell should be used in cast iron, cast steel, cast aluminum or copper casting and other casting alloy. Shaft should be used at least for 2Cr13 stainless steel or a corrosion resistant material, or
Diesel powered drive pump (or a fire pump group) by the horizontal centrifugal pump and diesel engine, electronic instrument and other equipment, safety closely installed in a common chassis through control lines and signal lines and electric control box
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