KQDW series horizontal single-suction multi-stage centrifugal pump
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Product overview
KQD series multistage centrifugal pump is divided into KQDL vertical, KQDW horizontal multi-stage single export-oriented and KQDL vertical centrifugal pump, KQDW horizontal multi-stage export-oriented four more structure. Closer to the pump body of the new return pipe structure design, return pipe is not easy to damage, at the same time enhance the sealing of the pump. Instead of "O" ring rubber bellows mechanical seal is solved easily produce scale, jammed caused by mechanical seal leakage problem, quality is more reliable. Novel structure, superior quality; Running stability, avoid killed; Advanced design, save the investment; Unique parts and reduce the noise.
Application field
KQDL series multistage pump is my company according to the market need and development of series products, this product compared with similar products is small, the head difference between the same specification can be convenient for users to choose. This product is accord with GB/T 5657-5657 < < centrifugal pump technology conditions (Ⅲ) > > standard.
The working conditions
Speed: 1480/2950 r/min
Liquid: clean water or physical and chemical properties similar to water in the liquid.
Liquid temperature: 120 ℃ or less
Flow range: 3.7 ~ 200 m3 / h
Lift range: 12.1 ~ 240 m
The suction pressure of the maximum working pressure: maximum pressure 2.5 Mpa or less + pump
- Q: Must the water pump in the tank be all soaked in water?
- Need a submersible pump in the water, but it is not entirely like this, I have to work for a long time no problem in water, but there is a problem you should pay attention to the water pump, at least in half, or stop when the smoke is not on water.
- Q: Why should the pump be closed when the centrifugal pump is started?
- On the other hand, the water on the pipe of the inlet pipe of the pump is stationary before the pump is opened, such as the sudden acceleration, and the water behind it can not keep up, which will cause the pressure of the inlet to drop suddenly and vaporize the water, and the centrifugal pump will be evacuated. (because of the centrifugal pump is rotating centrifugal force generated by the pump, leaf water and steam driven (gas) quality is very light, according to F= Ma, the centrifugal force is small, the pump can not be water sent).
- Q: What is the pump lift voltage? And how to suppress the pumping voltage rise?
- The elevator is mainly used by the power grid through the rectifier, filter, inverter and other transmission to the motor. The motor in high speed when the brake suddenly, but the rotor of the motor with the load (production machinery) mechanical inertia, could not stop quickly, resulting in the back EMF (EU voltage) motor is in the state of power, the reverse voltage and torque original electric state torque instead, and the motor with brake strong torque, forcing the rotor to stop fast but usually AC-DC-AC converter is the main power AC/DC rectifier circuit is irreversible and therefore cannot go back to the grid, energy will be accumulated in the filter capacitor, produce pump voltage, this phenomenon of pump voltage converter has great destructive power.
- Q: What is the name of the day pump and ground pump? Specific introduction
- People often say "day pump" actually refers to the boom pump, it also has many other name, such as pump, boom pump, concrete pump, concrete pump truck, these words are "day pump".Ground pump, in fact, refers to the pump drag pump. Therefore, to understand the difference between day pump and ground pump is to understand the difference between the boom pump and the tow pump
- Q: What is cavitation, centrifugal pump cavitation phenomenon how to solve?
- Centrifugal pump cavitation phenomenon how to solve?:Measures to improve cavitation resistance of centrifugal pumps(1) improve the design of the suction port of the centrifugal pump to the impeller. Increase flow area; the radius of curvature increases the impeller cover inlet section, reduce the flow accelerated sharply with pressure; reduce the thickness of the blade, and the blade inlet rounded, close to the streamline, can also reduce the acceleration and pressure flow around the blade head portion of the impeller and the blade inlet part; improve surface finish in order to reduce the resistance loss; the blade inlet edge extends to the impeller inlet, the liquid flow in advance to accept work pressure, improve.
- 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: What should be used to pay attention to the use of mechanical pumps?
- Overall: large pump should first do a good job of the foundation, to find a good whole, fixed, and motor, pump should be added good oil, the first test of the motor, and then conjoined test
- Q: How accurate is the metering pump?
- In addition, when the oil supply is too large or the pipeline pressure rises unexpectedly, the volume of the liquid in the hydraulic chamber can be changed, thereby affecting the stability of the flow and reducing the metering accuracy of the pump. In order to solve the problem of how to stabilize the measurement accuracy of metering pump metering pump flow, how stable, the three valve device. The so-called actual refers to the combination of three functions including compensation, discharge and safety protection device or device supporting the hydraulic chamber, according to its action principle is different, is divided into automatic compensation and forced compensation two three valve device.
- 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: What is the distance between the pump and the wall?
- Mainly depends on the maintenance, installation is convenient, but there is no other requirements.
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KQDW series horizontal single-suction multi-stage centrifugal pump
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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