30 hp Horizontal Centrifugal Pump

30 hp horizontal centrifugal pump has maximum flow 31m3/h (136 gpm), maximum head 115m (377ft) and same diameter of inlet and outlet 65mm (2-1/2 inch). 3 phase centrifugal pump also has optional input voltage AC 220V/240V/380V/415V /440V to 480V and optional input frequency 50Hz/60Hz, can be used for cool water pressurization in air conditioner, refrigeration equipment, bathroom, etc.
Delivery date: 6-20 days
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30 hp horizontal centrifugal pump with 31m3/h maximum flow, 115m maximum head and 65mm 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 65-315A
Weight 255kg
Size 570*865*360mm
Power 30 hp (22kW)
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) 16.6m3/h (73 gpm, American system) 23.7m3/h (104 gpm, American system) 31m3/h (136 gpm, American system)
Head (max. head to min. head) 115m (377ft) 113m (371ft) 110m (361ft)
Efficiency 32% 40% 44%
Inlet diameter 65mm (2-1/2 inch)
Outlet diameter 65mm (2-1/2 inch)
Installation angle of outlet 0°, 90° and 180°
Nominal diameter of impeller 315mm
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 2.5m
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
300 570 865 125 85 620 360 570 260 100 4-Φ18 Φ185 Φ145 4-Φ18

Horizontal centrifugal pump dimensional drawing
Tips: What are the main reasons for the mechanical seal of centrifugal pump leakage?

  1. The sealing end face between the moving ring and the stationary ring has the phenomena of too serious wearing, improper loading coefficient in design, thus causing the seal end face to have a crack, deformation, damage or the like.
  2. Several auxiliary seals have defects themselves or defects due to improper assembly, and the selected auxiliary seals are not suitable for working medium.
  3. The spring preload is insufficient or the spring has a fracture, corrosion, relaxation, coking or other problems, or suspended particles or crystals of the working medium accumulate in the spring gap after a long-period operation, causing spring fault and the compensation sealing ring is unable to float, so as to have leakage.
  4. Because the vertical deviation between the end face of the moving and static ring seal and the centre line of the shaft is too large, the sealing end face is not tightly bonded, thus causing leakage.
  5. Due to a large amount of axial yaw of the shaft, the fittings or the quality of the fittings associated with the seal are not good, it is easy to cause leakage.
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