Multi-Stage Pumps

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 or 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.

Centrifugal pumps are a sub-class of dynamic axisymmetric work-absorbing turbomachinery. Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits.

Common uses include water, sewage, petroleum and petrochemical pumping; a centrifugal fan is commonly used to implement a vacuum cleaner. The reverse function of the centrifugal pump is a turbine converting potential energy of water pressure into mechanical rotational energy.