BL Series Vertical Multistage Centrifugal Pump

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Q:About how to calculate the pump installation height?
See the design manual, town water, volume P312This formula is: NPSHA = HgHzhsZs > NPSHRAccording to the actual installation of NPSHA pump cavitation can provideThe pump NPSH provides NPSHR pump samplesAtmospheric pressure Hg pump installation siteHz liquid under certain temperature saturated steam pressure.The head loss of water pipe HsThe installation height of ZsIt is worth pointing out that, with regard to Hz, with temperature related, and some problems are not given temperature, and that value is also very small, in the calculation should be able to ignore (0 degrees C, 0.06mH2O).And atmospheric pressure, we usually use 10mH2O, in fact, and altitude also related. When the altitude is 0, it is 10.3
Q:The car water pump is broken. What are the symptoms?
Car water pump damage, water temperature will rise sharply
Q:A direct type pump model with the coupling type, what is the difference?
The direct type shall be the same shaft of the pump and the motor, and the connecting shaft is a pump and the motor shall be 2 shafts, and shall be connected by a shaft coupling.
Q:Flow 70 cubic meters per hour; lift 35 meters, choose what standard water pump?
If you want to install simple, you choose vertical single stage pipeline pump, he imports and exports in a straight line above, installation super simple. If the installation does not require, IS ah, GD ah, you can.
Q:Water pump is not Sheung reason
You should look at the suction port of the pump, there is no check valve, if there is water will not flow back to the pump bodyIf the pump is not water and not bad, the main reason is that the pump does not flush water, or suction pipe into the air
Q:Stop the engine immediately and stop the circulating pump and the condensate pump. What's the harm to the turbine?
The condensed water is also used to air pumping device, steam seal cooler as cooling water, according to rules of turn.The circulating water is also used to supply cooling water to the oil cooler, and the oil temperature will rise.Hazard: exhaust pipe, condensate pipe will burst tube, low pressure cylinder rising temperature for deformation, rotor (shaft seal) may be deformed.
Q:What does the temperature range of the pump mean?
The temperature range refers to the temperature range of the medium in which the pump works. It is mainly determined by the influence of the pump material, especially the material of the shaft seal.
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
Q:Three phase water pump rated power 4000W, is three-phase working water pump, the voltage is 380V, how to find the three-phase pump current, and calculation of public
Three phase water pump motor rated power 4000W is the output shaft power, divided by the motor efficiency (general 85%) is the input power, which is often mistaken. The electric power is =4000/0.85=4706WRated current = electric power /1.732x, rated voltage x, power factor =4706/1.732x380x0.8=8.94A (assuming power factor 0.8).The above three answers are all wrong.
Q:Why is the water pump usually used multi-stage pumps, while the circulating pump is usually a single-stage pump?
Pump selection is based on flow, lift, power to determine, the actual situation is different, the choice of pump specifications and models are different, the key to your needs to choose.

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