• Promivac Engineers

Rotary Vacuum-Pressure Pumps

Promivac Engineers has launched a two-in-one Rotary Vacuum-Pressure Pumps, oil lubricated vane type. The main assembly of the pump comprises of stator and a rotor mounted in it. Depending upon the model, the rotor is fitted with 4, 6 or 8 specially treated fibre vanes, which are diametrically opposed to each other and are duly held in rotor slots. When the rotor is made to rotate with the aid of the connected electric motor, these vanes move in and out of the slots by centrifugal force and slide against the walls of the stator pushing thereby the trapped air out of the stator and prompting the atmospheric air to gush in spontaneously to fill in the empty space. This continuous process happening at a high speed, gives rise to an unbreakable stream of vacuum and pressure. The oil circulation system is so designed that after providing lubrication to all the vital components of the pump, oil travels ahead without contaminating the air and gets automatically collected in its original chamber, ready once again, for re-circulation. Quite a little quantity of oil is required for this purpose and if per chance the oil is not replenished in time, it won’t affect the smooth running of the pump at least for some time. Built-in air filters-cum-noise absorbers provided on both the vacuum and pressure lines, are designed with special emphasis to save the pump from dust and also to help it function noiselessly, ensuring thereby continuous supply of oil-free vacuum and compressed air. Temperature of the pump is successfully controlled to the bare minimum, as the unit is a fan cooled one. The pump, supplied with or without electric motor, is supported on extremely sturdy and compact base plate fitted with a belt guard. The design of this base plate can be modified, as per dictates of OEMs so as these fall in line with their specific mounting option(s) for their respective machine(s).