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    7.5 hp Horizontal Centrifugal Pump, Single Stage

    Single stage centrifugal pump with 5.5 kW motor power, horizontal structure, centrifugal water pump has maximum flow 7.8 m³/ h (34.3 gpm), maximum head 72m (236ft) and same diameter of inlet and outlet 40mm(1~1/ 2 inch). 3 phase centrifugal pump can be used for garden sprinkler irrigation, HVAC & refrigeration water circulation, etc.
    SKU: ATO-HCP-5500W
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Centrifugal water pump has maximum has optional input voltage AC 230V/ 240V/ 380V/ 440V to 480V and optional input frequency 50Hz/ 60Hz. Horizontal centrifugal pump has 0°, 90° and 180° installation angle of outlet.


    1. The centrifugal pump has the horizontal structure. The diameter of the inlet and outlet are the same. If a protective cover is added, it can be used in the open air.
    2. It is easy to install and maintain. No need to dismantle pipeline system, just lifting off the conjunction flat nut of vertical pump. Then all the rotor parts can be taken out.
    3. Horizontal centrifugal pump can be operating in series and parallel connection according to the requirements of flow and head.
    4. The installation angle of pump outlet can be 0°, 90° and 180° to meet different connection occasions.


    • Model: ATO-HCP-40-250A
    • Power: 7.5 hp (5.5 kW)
    • Number of stages: Single stage
    • Input voltage: AC 220V, 230V, 240V, 380V, 400V, 415V, 440V, 460V, 480V
    • Input frequency: 50Hz/ 60Hz
    • Inlet diameter: 40mm (1-1/ 2 inch)
    • Outlet diameter: 40mm (1-1/ 2 inch)
    • Flow (min. flow to max. flow): 4.1 m³/ h (36.5gpm), 5.9 m³/ h (26gpm), 7.8 m³/ h (18gpm)
    • Head (max. head to min. head): 72m (236ft), 70m (230ft), 65m (213ft)
    • Efficiency: 24%/ 28%/ 27%
    • Nominal diameter of impeller: 250mm
    • Size: 465*640*330mm
    • Weight: 125kg

    Dimension (mm)

    Boundary dimension h H L a A
    260 465 640 80 55
    Base dimension L1 B I b h1 4-φd1
    450 330 400 230 80 4-φ14
    Flange dimension D D1 n-φd
    φ150 φ110 4-φ18

    Horizontal centrifugal pump dimension

    Tips: Operation Steps of Centrifugal Pump Start Up.

    After completing preparations, the centrifugal pump can be started. After starting, when the pump speed is stable, check the pressure and current, and pay attention to the vibration and noise. When the ammeter pointer swings to the specified position, the cock of the vacuum gauge and the pressure gauge can be opened, and the outlet valve must be slowly opened, and the water pump starts to have the normal operation. At the same time, the valve of the sealing water pipe should be opened.
    The idle running time after the start of the centrifugal pump should not be too long, usually limited to 2 to 4 minutes. If the time is too long, the temperature of the water will rise, which may cause cavitation or other adverse consequences.

    Phase 3 phase
    Input voltage AC 220V, 230V, 240V, 380V, 400V, 415V, 440V, 460V, 480V
    Input frequency 50Hz, 60Hz
    Installation angle of outlet 0°, 90° and 180°
    Pump type Booster pump
    Number of stages Single stage
    Motor type Y/ Y2 series motor
    Motor speed 2900rpm
    Impeller material 304/ 316 stainless steel
    Seal material 304 stainless steel, tungsten carbide, fluorine rubber
    Inlet max. pressure 1MPa (145 psi)
    (NPSH)r 2.3m
    Usage Water, or liquids compatible with pump component materials.
    1. The volume of solid particles should be less than 0.1% in unit volume, and the granularity should be less than 0.2mm.
    2. The temperature should be lower than 60℃.
    Environment Temperature: <40℃, humidity: <95%, altitude<1000m
    Warranty 12 months
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