Centrifugal Pumps

What is a Centrifugal Pump?centrifugal-pump

Any pump that utilises centrifugal force to create a large amount of pressure in fluid is a centrifugal pump. This results in a pumping action. The easiest way to imagine is water being flicked up off of a car tyre on a wet road. Rather than like most pumps utilising a scooping action created by the vanes or blades on the impeller, a centrifugal pump pumps from the centrifugal force.

Standard centrifugal pumps have a large range of different types. When they operate in submersible applications or on flooded suction lines they are able to pump water. This is because there is enough water surrounding the impeller to create a decent level of pressure.

Centrifugal pumps can pump continuously at high flow rates and at a very high pressure. Consequently making the centrifugal pump cost effective and reliable.
There are different types of centrifugal pumps. These are:

  • Axial flow pumps
  • Radial flow pumps
  • Side channel pumps
  • Mixed flow pumps

They are categorised by values such as their head, pressure, altitude, suction characteristics, power, power input, flow velocity, total head, rotational speed, pump efficiency and specific speed.

A disadvantage of the standard centrifugal pump is air. If it comes into contact with air it can cause the pump to become air-bound. When pumping it is more difficult to pump air than water, so if air enters the pump it will no longer be able to force the water out.

When a pump is functioning normally with no air inside it should look like this:

pump

If air gets into the pump it binds it and therefore is stuck and won't be able to operate until the air is removed. An air-bound pump looks like this:

pump1

Why can't they pump air and water?

Water and air have different properties. For example using a ceiling fan for an on board motor on a boat. Water is a lot more dense than air. When moving air the blades have to be light, flimsy and move extremely fast. Whereas when pumping water the blades have to be a lot more sturdier but can move much slower. An example of this is the blades on a cruise ship turn at around 100 RPM, where a jets turbofans blades turn at around 10,000 RPM and possibly more.

Standard Centrifugal

CP100                                                                                                                                                                                                                                                                         civiledomestico

pedrollo_cp_pump__46622_zoomMain Features:

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CP100 Information Sheet
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CP100 Specification Sheet
Flow Rate: Up to 160lpm

Dynamic Head: CP100 - 16m

Use With: Clean Water & Diesel

IP Protection: IPx4

Voltages Available: 230v Single Phase or 3 Phase 415v

         buynow

CP150                                                                                                                                                                                                                                                                         civiledomestico 

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Main Features: 

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CP150 Information Sheet
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CP150 Specification Sheet
Flow Rate: Up to 160lpm

Dynamic Head: CP150 - 29.5m

Use With: Clean Water & Diesel

IP Protection: IPx4

Voltages Available: 230v Single Phase or 3 Phase 415v

         buynow

CP190                                                                                                                                                                                                                                                                        civiledomestico 

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Main Features:

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CP190 Information Sheet
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CP190 Specification Sheet
Flow Rate: Up to 160lpm

Dynamic Head: CP190 - 41m

Use With: Clean Water & Diesel

IP Protection: IPx4

Voltages Available: 230v Single Phase or 3 Phase 415v

         buynow

High Flow Centrifugal

HF20B                                                                                                                                                                                                                                                                       civiledomestico

hf_high_flow_range_pump__75819_zoom

Main Features:

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HF20B Information Sheet
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HF20B Specification Sheet
Flow Rate: Up to 2200lpm

Dynamic Head: HB20B - 16m

Use With: Clean Water & Diesel

IP Protection: IPx4

Voltages Available: 3 Phase 415v

         buynow

HF4                                                                                                                                                                                                                                                                            civiledomestico

hf_high_flow_range_pump__75819_zoom

Main Features:

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HF4 Information Sheet
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HF4 Specification Sheet
Flow Rate: Up to 2200lpm

Dynamic Head: HF4 - 24.5m

Use With: Waste Water & Diesel

IP Protection: IPx4

Voltages Available: 230v Single Phase or 3 Phase 415v

         buynow

HF6B                                                                                                                                                                                                                                                                          civiledomestico

hf_high_flow_range_pump__75819_zoom

Main Features:

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HF6B Information Sheet
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HF6B Specification Sheet
Flow Rate: Up to 2200lpm

Dynamic Head: HF6B - 14.7m

Use With: Waste Water & Diesel

IP Protection: IPx4

Voltages Available: 230v Single Phase or 3 Phase 415v

         buynow

Medium Flow Centrifugal

HF70C                                                                                                                                                                                                                                                                         civiledomestico 

hf_range_pump__02503_zoom

Main Features: 

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HF70C Information Sheet
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HF70C Specification Sheet
Flow Rate: Up to 600lpm

Dynamic Head: HF70C - 29m

Use With: Waste Water & Diesel

IP Protection: IPx4

Voltages Available: 230v Single Phase or 3 Phase 415v

         buynow

HF50B                                                                                                                                                                                                                                                                         civiledomestico 

hf_range_pump__02503_zoom

Main Features: 

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HF50B Information Sheet
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HF50B Specification Sheet
Flow Rate: Up to 600lpm

Dynamic Head: HF50B - 9m

Use With: Waste Water & Diesel

IP Protection: IPx4

Voltages Available: 230v Single Phase or 3 Phase 415v

         buynow