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25 hp Vertical Centrifugal Pump

25 hp vertical centrifugal pump adopts single stage stainless steel impeller, has the same diameter of inlet and outlet 80mm (3 inches), maximum flow 61m3/h (269 gpm), maximum head 73m (240ft), optional input voltage AC 220V/ 380V/ 400V/460V to 480V and optional input frequency 50Hz/60Hz. 3 phase 25 hp centrifugal pump can be used for long-distance water delivery, pipeline pressurization, high-rise building pressurized water supply, etc.
SKU: ATO-VCP-18d5KW
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Delivery date: 6-12 days
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$3,305.98

25 hp vertical centrifugal pump with 61m3/h maximum flow, 73m maximum head and 80mm diameter of inlet and outlet.

Features:

  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.

Specifications:

SKU ATO-VCP-18d5KW
Model 80-250A
Weight 188kg
Size 480*430*820mm
Power 25 hp (18.5kW)
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) 32.5m3/h (143 gpm, American system) 46.7m3/h (206 gpm, American system) 61m3/h (269 gpm, American system)
Head (max. head to min. head) 73m (240ft) 70m (230ft) 63m (207ft)
Efficiency 52% 59% 60%
Inlet diameter 80mm (3 inch)
Outlet diameter 80mm (3 inch)
Installation mode Vertical type or horizontal type
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 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
480 430 820 160*220 130 110*170 4-Φ18 Φ200 Φ160 8-Φ18

vertical centrifugal pump dimensional drawing
Tips: Fault treatment of the centrifugal pump - Unable to pump water
It means the centrifugal pump has the following faults: Be unable to pump water, have difficulty in start-up, or the flow is reduced.
Reasons of unable to pump water:

  1. Insufficient injection of liquid before pumping.
  2. Air or air leakage in the pump or suction tube.
  3. The suction height exceeds the allowable range of the pump.
  4. The pipeline resistance is too high.
  5. There is debris in the pump or pipeline.
  6. The motor is overloaded.

Reasons of difficult start-up:

  1. Incorrect installation, friction, stuck or bearing burned and locked.
  2. The outlet valve is fully open in start-up, the resistance inside the outlet pipe is too small, and the pump load is too heavy.
  3. The suction pipe is not smooth and the axial force is too large.
  4. The stuffing is too tight or the mechanical seal assembly is skewed, the compression is too large or the like.
  5. The power supply has problems.
  6. Water leakage and heat generation in the gland packing area.
  7. The bearing is overheated.
  8. Vibration, noise.

Man-made faults:

  1. Lack of lubricating oil or selected lubricating oil does not meet the requirements.
  2. Wrong technological process (operation error).
  3. Pump rotation direction is wrong.
  4. Improper or late maintenance.
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