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The Mechanics of Screw Vacuum Pumps
The Mechanics of Screw Vacuum Pumps
August 05, 2016

Before you purchase a vacuum pump, it s important to consider the benefits you will get from the machine, so that you can choose what gives you the most value. Vacuum pumps are used in commerce for drying packaging, suction and pick-and-place applications. A number of process engineering operations are undertaken in the vacuum because low pressure is a plus on temperature-sensitive products. The type of product you purchase defines your operational efficiency, environment consciousness and cost implications.


Screw vacuum pumps work with two screw rotors rotating in opposite directions. This traps the medium being pumped between the screw chambers and the cylinder, and then transports it to the gas outlet. The machine has an advanced screw design that results in lower energy consumption compared to standard screw designs, and also reduces the heat load on compressed gas.


Dry screw vacuum pumps need cooling because they don’t use any coolant in the chamber. This can be achieved through high performance air cooling methods plug-ins that eliminates the need for fluid coolants. Indirect cooling methods that lead to uniform temperatures throughout the pump body eliminate cold spots and provide a thermally stable jacket. Global Vac offers an advanced design for screw vacuum pump that accommodates best-in-class pumping capabilities.


Oil sealed screw vacuum pumps use oil in internal chambers but have a design that fosters retention. The cylinder has rumps that prevent back flow and ejection of oil sentiments in the output schedule. While the initial oil-based pumps had the disadvantage of environmental pollution, noisy operation and uneconomical operation, a lot has been done to keep such shortfalls a bay. New-model vacuum pumps have been intentionally created to reduce noise levels to almost zero. They not only enhance up to 50 percent energy savings but can also be operated in any configuration.


Well, looks like that might change. But greener is still better.
Posted by: Ahmed | January 19, 2017, 7:55 am
Agreed. 2017 is going to hit us hard with the energy costs. This was in the talks with the company since Q3 of 2016.
Posted by: Kevin | January 5, 2017, 2:36 pm
With hydro costs going up, energy savings are a must.
Posted by: Morgan | December 7, 2016, 2:46 pm
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