Self-Priming Centrifugal Pumps Deliver High Heads


There are certain liquid transfer applications, such as irrigation and industrial refuelling, which require a pump to provide the important combination of delivering high heads and to be self-priming. However, many self-priming pumps...

... have an open impeller-construction and this limits the available pressure from the pump.

Alpha ORA-C series pumps, available through liquids handling specialists PUMP ENGINEERING, are designed to provide a low-cost, reliable solution to this problem. A modified housing and closed impeller means that these pumps retain the characteristics of the self-priming centrifugal pump, with the ability to deliver high heads up to 100m (10 bar g).

The Alpha range of centrifugal pumps are available as end suction or multi-stage and are supplied in sizes from 1½” - 4” . In addition to their ability of providing high heads, they are capable of delivering flow rates up to 3000 litres / minute.

These robust pumps are available in cast iron, with cast iron or bronze impellers, stainless steel shaft and a wide range of mechanical seals. They can be supplied as bareshaft or motor-driven units with special versions available depending on specific application requirements.

More articles on this topic

Editorial: How to Avoid This Vital Problem With Pumps

21.07.2022 -

Cavitation occurs in centrifugal pumps when the available net suction head (NPSHa) is lower than the required net suction head (NPSHr). This leads to the formation and accumulation of bubbles around the impeller eye, which then collapse, causing a series of mini-implosions and significant damage to both the impeller and the casing.

Read more Sales Platform Available in Five More Languages

13.01.2022 -

The international sales platform for centrifugal pumps – – has been expanded by five additional languages and is now available in Russian, Polish, Czech, Greek and Turkish. The expansion increases the user-friendliness of the pump selection tool in particular and makes a decisive contribution to the international orientation of the Internet portal.

Read more