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How much is the lift of the fire pump suitable?

The lower the pumping head of the fire pump, the smaller the motor load. Under the misleading of this kind of misunderstanding, when purchasing a water pump, the head of the water pump is often selected to be very high. In fact, for centrifugal water pumps, when the pump model is determined, the power consumption is proportional to the actual flow of the pump. The flow rate of the water pump will decrease with the increase of the head, so the higher the head, the smaller the flow rate and the smaller the power consumption. Conversely, the lower the lift, the greater the flow and the greater the power consumption. Therefore, in order to prevent the motor from overloading, it is generally required that the actual pumping head of the pump should not be lower than 60% of the calibrated head.

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The lower the pumping head of the fire pump, the smaller the motor load. Under the misleading of this kind of misunderstanding, when purchasing a water pump, the head of the water pump is often selected to be very high. In fact, for centrifugal water pumps, when the pump model is determined, the power consumption is proportional to the actual flow of the pump. The flow rate of the water pump will decrease with the increase of the head, so the higher the head, the smaller the flow rate and the smaller the power consumption. Conversely, the lower the lift, the greater the flow and the greater the power consumption. Therefore, in order to prevent the motor from overloading, it is generally required that the actual pumping head of the pump should not be lower than 60% of the calibrated head.

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    What kind of terrain to choose what kind of water pump

    This problem, in short, is the selection of water pumps. The following are the applicable way for you to choose water pumps from zjbetter. I hope they can help you choose water pumps and help you better. Choose the water pump that suits your design.
    1. Confirm the use terrain
    First understand the terrain in which the outfit is used, including temperature, moisture, air pressure, air cattiness, dustproof and leakproof conditions, and the position of dangerous areas.
    2. Confirm operating conditions
    Refers to the liquid face pressure( absolute) on the suction side of the liquid, the liquid face pressure on the discharge side, intermittent or nonstop work, fixed or mobile position, and the convenience of installation and conservation.
    3. Confirm the nature of the medium
    Medium temperature, viscosity, density, impregnated vapor pressure, solid flyspeck periphery and content, gas content, cattiness, volatility, trap, toxin.
    4. elect the material of the pump bathe corridor
    According to the physical and chemical parcels of the pumped medium above, the material of the inflow- passing corridor is determined.
    5. Determine performance parameters
    The performance parameters of the water pump can be determined by computation, analogy, test and other styles.
    6. Determine the installation type
    The installation of the channel is determined by the layout of the channel and the installation point, and there are direct connection, perpendicular and other types.
    8. Determine the number of pumps
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