15 hp Horizontal Centrifugal Pump

Horizontal centrifugal pump has 3 hp motor power, optional input voltage 3 phase AC 220V/230V/240V, 380V/400V/415V to 440V/460V/480V and optional input frequency 50Hz/60Hz for sale. 15 hp centrifugal pump with maximum flow 16.3m3/h (71.8 gpm), maximum head 81.2m (266ft) and same diameter of inlet and outlet 40mm (1-1/2 inch), can be used for high-rise building pressurized water supply, HVAC & refrigeration water circulation, etc.
Delivery date: 6-20 days
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15 hp horizontal centrifugal pump with 16.3m3/h maximum flow, 81.2m maximum head and 40mm 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 40-250I
Weight 145kg
Size 500*790*340mm
Power 15 hp (11kW)
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) 8.8m3/h (38.7 gpm, American system) 12.5m3/h (55 gpm, American system) 16.3m3/h (71.8 gpm, American system)
Head (max. head to min. head) 81.2m (266ft) 80m (262ft) 77.5m (254ft)
Efficiency 31% 38% 40%
Inlet diameter 40mm (1-1/2 inch)
Outlet diameter 40mm (1-1/2 inch)
Installation angle of outlet 0°, 90° and 180°
Nominal diameter of impeller 250mm
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
280 500 790 100 65 560 340 510 240 100 4-Φ18 Φ150 Φ110 4-Φ18

Horizontal centrifugal pump dimensional drawing
Tips:Centrifugal pump troubleshooting - motor current is too high

  • Reason 1: The power of the supporting motor is too small. The solution: adjust the supporting motor and replace the motor.
  • Reason 2: The revolving speed of the water pump is too high. The solution: reduce the revolving speed of the water pump.
  • Reason 3: The pump shaft is bent and the bearing is worn or damaged. The solution: correct the straightening of the pump shaft, repair or replace the bearing.
  • Reason 4: The stuffing is compressed too tight. The solution: release the stuffing gland.
  • Reason 5: In practical operation, the head is much lower than the pump head, causing a too high flow rate. The solution: turn down the outlet valve and control the water pump flow rate.
  • Reason 6: The coupling is not concentric, or the clearance between the couplings is too small. The solution: correct the concentricity or adjust the clearance between the couplings.
  • Reason 7: The pump has been stopped for a too long period, thus causing heat expansion. The solution: implement the normal operation procedure, stop immediately for inspection in case of a fault.
  • Reason 8: The motor is wetted because of being dipped in water. The solution: dry the wet motor.
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