Tri Lobe Blowers by Halward

It employs two Tri-lobe impellers mounted on parallel shafts, rotating in opposite directions within a casing closed at the ends by side plates.

As the impellers rotate, air is drawn into one side of the casing and forced out of the opposite side against the existing pressures. The differential pressure developed, therefore, depends upon the resistance of the connected system.

The Blowers, being positive displacement type, do not develop pressure within the casing but the discharge pressure depends upon the system resistance / back pressure. Effective sealing of the compressor inlet area from the discharge area is accomplished by use of very small operational clearance, eliminating the need of any internal lubrication of the lobes.

A pair of accurately machined alloy steel, hardened and ground timing gears maintain clearances between the impellers, during rotation.

The air, thus delivered, is 100% OILFREE

The pumping capacity of a lobe compressor, operating at constant speed remains relatively independent of inlet and discharge pressure variations. These Blowers are constant volume machines, which deliver a fixed discharge against the system back pressure. It is, therefore, essential to ensure that minimum pipeline restrictions, at the inlet and discharge, are imposed