Pentax PM45 Peripheral Turbine Pump - 40 L/min


Available Options (Prices ex. VAT)

From £264.78 £220.65


Lead Time
3-5 working days
Delivery Cost
£12.50 + VAT
Exclusions apply - Click here for more details

UK Delivery Charges - Important Information

Our standard UK Mainland delivery charges have been automatically added to your shopping basket. As our products are supplied from a number of different locations, delivery times can vary, please read the product descriptions for more details. If we are unable to deliver your order within the timeframe specified in the product description, we will contact you, as soon as possible to advise of a revised delivery date.

Need your order urgently? We may be able to assist and offer an express delivery service, call our sales team on 01777 858009

Buying in bulk? Call our sales team on 01777 858009

Delivery to any of the following areas may incur additional delivery charges

Channel Islands, Isle of Man, Isle Of Wight, Anglesey, Isles of Scilly, Western Isles, Orkney Islands, Shetland Islands, Northern Ireland & Republic of Ireland, Scottish Highlands and Offshore Islands and also areas north of the Glasgow/Edinburgh line including the following postcode areas:

AB, DD, DG, EH, FK, G, HS, IV, KA, KW, KY, ML, PA20-40, PA60-78, PH1-26, PH30-44, PH49-50, TD, ZE

If your delivery location or postcode is listed above, please call our sales team on 01777 858009 for more details.


Weight - kg
Length - mm
Width - mm
Height - mm
WRAS Approved
Float Switch


The Pentax PM45 is a peripheral turbine pump made to develop high pressure with limited flow rates. The pump is suitable for clean water only and can be used for many duties including water boosting, sprinkler systems and irrigation, water circulation and transfer.

  • Centrifugal impeller, peripheral turbine
  • Brass impeller and pump housing
  • Available in 110v and 230v
  • 230v 50Hz
  • 0.37Kw
  • 40 L/Min maximum flow
  • 40 Metres maximum head
  • 6 Metres maximum suction if used with a filter foot valve (Not self-priming)
  • 1” BSP Female inlet and outlet
  • Maximum liquid temperature of 70°c


Model KG H x W x L (mm) L/Min Max. Head kW
Pentax PM45 110v 6.2 155 x 125 x 265 40 40m 0.37
Pentax PM45 230v 6.2 155 x 125 x 265 40 40m 0.37

What is a Peripheral Turbine Pump?

A peripheral turbine pump is also commonly referred to as a regenerative turbine pump. The primary difference between a centrifugal and turbine pump is that fluid only travels through a centrifugal impeller once, whereas in a turbine pump, it takes many trips through the vanes. Once the liquid enters the pump, it is directed into the vanes which push the fluid forward and impart a centrifugal force outward to the impeller periphery. An orderly circulatory flow is therefore imposed by the impeller vane which creates fluid velocity. Fluid velocity (or kinetic energy) is then available for conversion to flow and pressure depending on the external systems flow resistance.

Next, as the circulatory flow is imposed on the fluid and it reaches the fluid channel periphery, it is then redirected by the specially shaped fluid channels around the side of the impeller and back into the I.D of the turbine impeller vanes, where the process begins again. This cycle occurs many times as the fluid passes through the pump. Each trip through the vanes generates more fluid velocity, which can then be converted into more pressure. The overall result of this process is a pump with pressure building capability up to ten times more than that of a centrifugal pump with the same impeller diameter and speed.

These pumps are suitable for use only in applications with clean fluids and systems. In some cases, a suction strainer can be used to protect the pump.

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