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20 hp Horizontal Centrifugal Pump

20 hp Horizontal Centrifugal Pump

$4,197.68
| 1 review(s) | Add your review
20 hp horizontal centrifugal pump for sale, has optional input voltage AC 220V/230V/340V, 380V/400V/415V, 440V/460V to 480V, optional input frequency 50Hz/60Hz, maximum flow 32.5m3/h (143 gpm), maximum head 82m (269ft) and same diameter of inlet and outlet 65mm (2-1/2 inch), can be used for high-rise building pressurized water supply, HVAC & refrigeration water circulation, cool water pressurization in air conditioner, etc.
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Delivery date: 6-12 days
SKU: ATO-HCP-015KW
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Overview

20 hp horizontal centrifugal pump with 32.5m3/h maximum flow, 82m maximum head and 65mm diameter of inlet and outlet.

Features:

  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.

Specifications:

SKU ATO-HCP-015KW
Model 65-250
Weight 230kg
Size 520*795*330mm
Power 20 hp (15kW)
Phase 3 phase
Input voltage * 220V, 230V, 240V, 380V, 400V, 415V, 440V, 460V, 480V
Input frequency * 50Hz, 60Hz
Flow (min. flow to max. flow) 17.5m3/h (77 gpm, American system) 25m3/h (110 gpm, American system) 32.5m3/h (143 gpm, American system)
Head (max. head to min. head) 82m (269ft) 80m (262ft) 76.5m (251ft)
Efficiency 39% 50% 52%
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 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 2.5m
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
280 520 795 100 65 560 330 510 230 100 4-Φ18 Φ185 Φ145 4-Φ18

Horizontal centrifugal pump dimensional drawing
Tips: Centrifugal pump troubleshooting - serious vibration of pump and abnormal noise

  1. If the centrifugal pump foundation is stale
    When vibration occurs, please firstly check if the anchor bolts of the centrifugal pump are tight. If they are not tightened, it will cause the centrifugal pump to vibrate. Please also consider whether the foundation strength of the foot is sufficient. Sometimes, due to design reasons, the soft foundation can also cause vibration.
  2. Coupling alignment
    Many centrifugal pumps are driven by couplings, and there are many types of couplings. The alignment of the normal three-paw coupling directly affects the normal operation and service life of the coupling, shaft, bearing, and machine seal.
  3. Alignment
    Improper alignment is also the common reason causing vibration. The alignment should be regulated in the specified range according to the standard strictly.
  4. Bearing inspection
    Check if the bearing is correctly installed or damaged.
  5. Adjustment of the rotor central position
    The water pump rotor must be concentric with the stator, otherwise friction will be generated in water pump operation, thus causing viration.
  6. Shaft curving and rotor measurement
    If the cause of the viration can not be found externally, the pump can only be disassembled. Please firstly measure and correct the bending of the shaft. After confirming to have no probblem, the rotor will be mounted, and the overall sway and scoring will be measured. If it exceeds the standard, it must be corrected.
  7. Inspection of the dynamic and static balance
    After the centrifugal pump is disassembled, in order to avoid vibration when the pump is turned on, the impeller should also be conducted with the static balance test.
  8. Influence of external conditions to the water pump
    When all the problems of the pump itself are completely eliminated, if the vibration problem can still not be solved, the influence of external conditions on the pump should also be considered. For example, the resonance caused by the natural frequency of the pump base is similar to the vibration frequency, the vibration of the pump caused by the failure of the prime motor, and the strong counterpart used for the connection between the pipeline and the pump will also probably cause abnormal vibration of the pump.
Reviews
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Existing reviews
20hp horizontal centrifugal pump has a long warranty
This is the third time I have purchased this 20hp horizontal centrifugal pump from Inverter.com. They have a long warranty period, so I can use them with confidence. I am very satisfied with their warranty period, and I will continue to purchase products on Inverter.com if necessary.
Adrian Adrian | 8/8/2021 7:29 PM
Was this review helpful? Yes No (0/0)
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