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The Internal Workings of a Rotary Vane Vacuum Pump
The Internal Workings of a Rotary Vane Vacuum Pump
December 22, 2016

Your quest for simple yet versatile and high performance pumps will go no further than the rotary vane vacuum pump systems. This specialty class of pumps can work with fluids of varying viscosity, especially those of thickness and viscosity drag of under 1,000,000 cP. As a result, their application is varied and can be usefully deployed in pumping low viscosity fluids such as oil, solvents, gas, as well as moderate to highly viscous ones such as asphalt and rubber. Thanks to the unique arrangement and structural design of the gears, the rotary vane vacuum pump allows for the continuous pumping of fluid leading to a continuous flow throughout the pumping duration.


Besides working with a variety of viscosity levels, a rotary vane vacuum pump can also work at varied temperatures of up to 450­­C. This is primarily due to the existence of a single end point of clearance between the teeth of the rotor gear and the head of the pumping system. With the excellent match of the clearance adjustment margin, the pump can also accommodate higher temperatures of operation without breaking or creating a buckling effect on the inlet or outlet. As a result, the pump can handle dense fluids with higher viscosity drag and high temperatures without halting the operational speed and overall efficiency.


Structurally, a rotary vane vacuum pump comes loaded with non-pulsate and self-priming gears whose direction of rotation depends on the source of the fluid. Consequentially, they offer bi-directional rotation and can be effectively used in loading and off-loading fluids from a reservoir without the need to change the position of the pump. Since the gears are housed in a crescent shaped cusp that divides the fluid proportionately, its travel through the gear system is effective and creates a seal between the sanction and discharge ends of the pump. For a continuous cycling of the pumping process, the intermeshing gears on the idler create temporal fluid-locked pockets which smooth the fluid flow through the discharge port. 

informative. Thanks
Posted by: daniel | January 19, 2017, 7:47 am
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