20 hp Vertical Centrifugal Pump

20 hp vertical centrifugal pump with cheap price adopts single-stage stainless steel impeller, can be operated in series or parallel connection for high flow/ high head water supply, or installed in the pipeline for pipeline pressurization. Three-phase vertical pipeline pump has maximum flow 65m3/h (286 gpm), maximum head 53.5m (176ft), same diameter of inlet and outlet 80mm (3 inches), optional input voltage 3 phase AC 220V/240V/380V/415V/480V and optional input frequency 50Hz/60Hz.
Delivery date: 6-20 days
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20 hp vertical centrifugal pump with 65m3/h maximum flow, 53.5m maximum head and 80mm diameter of inlet and outlet.


  1. The centrifugal pump has the vertical structure. The diameter of the inlet and outlet are the same. And the inlet and outlet are on the same center line, so that the vertical centrifugal pump can be installed in the pipeline like a valve. 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. Vertical centrifugal pump can be operating in series or parallel connection according to the requirements of flow and head.
  4. Vertical pump can be installed in vertically type or horizontally type according to the requirement of pipeline system.


Model 80-200
Weight 157kg
Size 430*430*775mm
Power 20 hp (15kW)
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) 35m3/h (154 gpm, American system) 50m3/h (220 gpm, American system) 65m3/h (286 gpm, American system)
Head (max. head to min. head) 53.5m (176ft) 50m (164ft) 46m (151ft)
Efficiency 55% 67% 68%
Inlet diameter 80mm (3 inch)
Outlet diameter 80mm (3 inch)
Installation mode Vertical type or horizontal type
Nominal diameter of impeller 200mm
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 3.0m
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

Vertical centrifugal pump dimension (unit: mm):

Boundary dimension Installation dimension Flange dimension
L B H C1*B1 A C2*B2 4-Φd1 ΦD ΦD1 n-Φd
430 430 775 140*200 125 100*160 4-Φ18 Φ200 Φ160 8-Φ18

vertical centrifugal pump dimensional drawing
Tips: Centrifugal pump troubleshooting - bearing heat
Possible reasons:

  1. Excessive lubricating oil, the grease of the bearing tank is completely filled or the oil level is too high, resulting in excessive stirring of the grease to produce high temperature.
  2. Insufficient lubricating oil, too low oil level, insufficient lubrication, heat generated by friction, bearing housing lubricant should fill 1/3 of the bearing space.
  3. Lubricating oil deteriorates.
  4. The gland is locked too tight, causing the bearing rotor to not rotate freely.
  5. There is a gap between the bearing housing and the outer diameter of the bearing, causing the outer ring of the bearing to slip in the hole of the bearing housing.

Solution: Fill with the lubrication oil or replace the bearing.

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