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4 hp Horizontal Centrifugal Pump

4 hp Horizontal Centrifugal Pump

$1,530.16
| 1 review(s) | Add your review
4 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 16.3m3/h (71.8 gpm), maximum head 33m (108ft) and same diameter of inlet and outlet 50mm (2 inches), 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-3000W
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  • Overview
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Overview

4 hp Horizontal Centrifugal Pump with 16.3m3/h maximum flow, 33m maximum head and 50mm 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-3000W
Model 50-160
Weight 80kg
Size 370*560*250mm
Power 4 hp (3kW)
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) 33m (108ft) 32m (105ft) 30m (98ft)
Efficiency 45% 52% 51%
Inlet diameter 50mm (2 inch)
Outlet diameter 50mm (2 inch)
Installation angle of outlet 0°, 90° and 180°
Nominal diameter of impeller 160mm
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
210 370 560 80 55 400 250 350 150 80 4-Φ14 Φ165 Φ125 4-Φ18

Horizontal centrifugal pump dimensional drawing
Tips: Optimizing and transforming methods of the centrifugal pump
As everyone knows, during the daily water supply operation of the pump, the water using period is divided into the peak period and the low peak period according to the different water use time. The amount of water used by the user varies greatly, and the water demand of the system is less than the flow rate of the design condition point in most of the time.
However, in the engineering design process, the pump parameters are determined and pump models are selected according to the most unfavourable working conditions. Due to the incompressibility of the water, when the water supply of the pump is greater than the water demand of the system, the pressure of the entire system will increase. At this time, according to the characteristics of the water pump, the operating point of the water pump will move to the side with rising head and decreasing flow rate. Obviously, when the flow rate is reduced to a certain value, the pump will deviate from the high-efficiency section. When the flow rate is reduced, the loss of the pipeline system is reduced, and the head required by the system is also continuously reduced so that the head of the water pump is often in an excess state. As a result, not only the user's water pressure is in the over-pressure status, which will bring water using inconvenience to water, but also it will cause energy waste.
In order to meet the user's water using requirements and economic operation objective, the pump flow rate and head are usually required to be changed to vary the working point. The operating point of the centrifugal pump is determined by the characteristics of the pump and the characteristics of the piping jointly. In order to realize the economic operation in the pumping station, the operating conditions of the pump must be adjusted. The specific means include:

  • Adjust the throttling valve (change pipeline resistance)
  • Adjust the guiding blade at the entrance (change the blade installation angle)
  • Change the impeller diameter
  • Change the revolving speed of the pump

In which, the adjustment throttling valve realizes the working condition regulation by changing the pipeline characteristic curve, and the throttling valve achieves this through increasing the pipeline resistance and reducing flow rate. This adjustment method is obviously uneconomical. Increasing the resistance of the pipeline is equivalent to increasing the pipeline loss. After the flow rate is lowered down, the power drop is not obvious. There is also a cavitation problem in the adjustment of the throttling valve of the pump suction end, so this method cannot effectively adjust the flow rate.
The adjustment of the inlet guiding blade is the basic method of the flow rate adjustment of the pump, and the Q-H characteristic curve can be changed to achieve the flow regulation purpose. At this moment, the power is roughly in direct proportion to the flow rate, and the power required to regulate the outlet valve is relatively small.
The adjustment means of changing the impeller diameter cannot be used as a real-time adjustment, so this method has a greater limitation in application. Only the angle and speed changing regulation can be used for real-time adjustment, and the speed changing adjustment has the advantages of wider adjustment range, higher adjustment efficiency, and stronger operability compared with the angle changing regulation. Of course, for large and medium-sized axial and mixed-flow pumps, angle changing adjustment can be used to adjust the working conditions of the pump. However, for small centrifugal pumps, the working condition point of the water pump is changed through varying the revolving speed of the water pump. Therefore, the centrifugal pump flow adjustment adopts the revolving speed adjustment.

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My need for 4 horsepower horizontal centrifugal pump
Hello, this is my first purchase of a 4hp horizontal centrifugal pump. I am not familiar with him yet. Can you send me some pictures of the 4hp horizontal centrifugal pump before shipment?
Gates Gates | 7/21/2021 3:04 AM
Was this review helpful? Yes No (0/0)
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Ok, no problem.
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