These locally manufactured pumps have been designed and are constructed from materials suitable for most high pressure applications.

The range consists of the LTF and LTS models, all of which are available in different sizes of inlet and outlet branches with varying number of stages.

Generally the LFT models are used when direct coupled is required to three phase motors running at 2 pole motor speed (approximately 2960 RPM) and LTS models are used when direct coupling is required to three phase motors running at 4 pole motor speed (approximately 1480 RPM).

However both models are suitable for operation at various other shaft speeds e.g. when direct coupled to diesel engines ot when driven via speed reduction gearboxes.

The LTF and LTS models are designed to cover heads varying from approximately 40 meters to 700 meters, flows from 2 litre/sec to 250 litre/sec.

These horizontal, high pressure centrifugal pumps are of the multi-ring section design. All pumps are built up from any number of stages held between the suction cover and Delivery Cover by body bolts. Sealing of casing components is by means of ‘O’ Rings. Pump rotation is clockwise when viewed from drive end.

Contact us today for more information about our services!

What is a Multi stage Pump?

Multi stage pumps are centrifugal pumps in which the fluid flows through several impellers fitted in series. This is as opposed to a single stage pump which only has one impeller. The more stages the pump has, the higher the final discharge pressure.

Multi stage chemical pumps are unique in that they are able to produce increasingly higher pressures with the addition of every stage while the flow range always remains constant for a given rpm.

What is a multi stage pump used for?

TE-3MS-MD Multi Stage Pump Mult istage pumps provide engineers with a flexible range of flow and head, along with their high degree of energy efficiency. For those reasons, multi stage pumps are a great choice for many applications.

March Pump offers a multi stage pump, the TE-3MS-MD, which is made to accommodate various industrial settings.  It is made from Polypropylene plastic, which is better able to handle various chemicals, compared to 316SS.  The pump can handle chemical recirculation, chemical transfer, and deionized water systems. Its unique multistage design makes it perfectly equipped to accommodate higher heads. Able to work with lower flow rates, the TE-3MS-MD multistage pump is still unique in that it offers 87.0 FT of maximum head.

Key Differences between Multi stage Pumps vs. Single Stage Pumps

As opposed to the mechanics of the multi stage pumps, single-stage pumps only have one pump impeller. The amount of pressure generated by the impeller/volute combination depends on the diameter of the impeller and the speed at which the impeller is turning. For a single-stage pump, the impeller is the sole element for transferring energy to the pumped liquid.

Multistage pumps can increase energy efficiency in the systems they are used in if replacing a single-stage setup. Multi-stage technology offers several advantages over traditional single-stage pumps when used to pump liquids that do not contain abrasives, solids or stringy material.

On the other hand, a disadvantage of very large numbers of stages is the increasing sensitivity of the pump rotor to external or natural vibrations. Multistage pumps maintenance is considered by some to be relatively more difficult than single stage pump. Because of the construction of multi stage chemical pumps, each impeller/volute combination can be smaller in diameter and operate with a smaller gap between impeller and volute. This tight clearance between impeller and volute means that multi-stage pumps are not recommended for applications pumping liquids containing solids, abrasives, or stringy material.

For engineers and decision makers looking to switch from single-stage setups to mult stage, developments in multi-stage technology have eliminated the need for piping and pump support rework when retrofitting a multi-stage pump for a single stage pump, making it easier than ever to consider multi-stage pump replacement of traditional single-stage pumps.