2 hp Horizontal Centrifugal Pump

2 hp horizontal centrifugal pump is a 3 phase centrifugal water pump, has optional input voltage AC 220V/ 230V/ 240V/ 380V/ 400V/ 460V to 480V, optional input frequency 50Hz/60Hz, maximum flow 13.5m3/h (59.4 gpm), maximum head 23m (75ft) and same diameter of inlet and outlet 50mm (2 inch). 2 hp single end suction centrifugal pump with cheap price can be used for cool water pressurization in air conditioner, refrigeration equipment, bathroom, etc.
Delivery date: 6-20 days
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2 hp horizontal centrifugal pump with 13.5m3/h maximum flow, 23m maximum head and 50mm diameter of inlet and 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 50-160B
Weight 47kg
Size 370*500*250mm
Power 2 hp (1.5kW)
Phase 3 phase
Input voltage * AC 220V, 230V, 240V, 380V, 400V, 415V, 440V, 460V, 480V
Input frequency * 50Hz, 60Hz
Flow (min. flow to max. flow) 7.3m3/h (32.1 gpm, American system) 10.4m3/h (45.8 gpm, American system) 13.5m3/h (59.4 gpm, American system)
Head (max. head to min. head) 23m (75ft) 22m (72ft) 20.5m (67ft)
Efficiency 50% 50% 50%
Inlet diameter 50mm (2 inch)
Outlet diameter 50mm (2 inch)
Installation angle of outlet 0°, 90° and 180°
Nominal diameter of impeller 160mm
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

Horizontal centrifugal pump dimension (unit: mm):

Boundary dimension Base dimension Flange dimension
h H L a A L1 B l b h1 4-Φd1 D D1 n-Φd
210 370 500 80 55 350 250 300 150 80 4-Φ14 Φ165 Φ125 4-Φ18

Horizontal centrifugal pump dimensional drawing
Tips: The influence of the centrifugal pump operating in low flow point

  1. The efficiency is lowered and the power consumption is increased. The centrifugal pump is generally designed to have an efficiency point near the rated condition point. When the centrifugal pump is operated at a low flow operating point, its operating efficiency will drop rapidly. Under normal circumstances, the smaller the flow rate leads to a lower efficiency, so it is very uneconomical to operate in low-flow conditions. In normal conditions, it is necessary to refit the appropriate high-efficiency small pump at this time.
  2. The vibration noise increases, which causes environmental pollution and damages the pump components, thus affecting the service life of the pump. At the design operating point, since the flow direction is consistent with the blade direction, the outflow loss, impact loss, and vortex loss are relatively small, approaching zero. However, when the pump is working in a low flow area, the outflow loss, impact loss and vortex loss of the pump over-current component are further increased due to deviation from the design point. These losses are accompanied by a large amount of hydraulic noise and mechanical vibration in the process of being generated.
  3. The pump internal backflow increases dramatically, and the inner heat expands, causing the liquid temperature to rise and triggering pump heating, so as to affect the mechanical performance of the pump component. Meanwhile, the performance of pump's cavitation deteriorates, thus further affecting the suction condition of the pump.
  4. The radial force of the centrifugal pump increases, thus deteriorating the rotor stress condition of the pump. Since the pump deviates the design working condition point in designing, the liquid flow speed in the volute chamber decreases. However, according to the velocity triangle, the outflow speed of the liquid in the impeller increases on the contrary, so the liquids can not converge and the impact is formed. The radial force will be generated by increasing the pressure constantly.
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