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Unit 20 Eastleigh Industrial Park 18 Edendale Road Eastleigh Edenvale Gauteng, South Africa
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Established 1980 |
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VACUUM SERVICES CC T : +27 11 609 4160 F : + 27 11 609 3278 E : info@vacuumservices.co.za www.vacuumservices.co.za
©2009 Vacuum Services. All Rights Reserved |
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PUMP SELECTION
Choosing the correct vacuum pump for your application is important. In some cases a number of different vacuum pump models/types can be used and the results will be the same but in other cases certain applications require specific pumps.
Choosing the incorrect pump can be costly for the following reasons: ●The pump mau not be suitable for the application, and thus be susceptible to damage, therefore requiring more servicing and repairs, as well as increasing downtime ●Effeciency can be copromised ●Costly high-spec pumps can can be purchased where a more affordable pump could have achieved the same results
It is always best to contact us directly to discuss your requirements with our vacuum experts, therefore ensuring that the right choice is made.
However below is a guideline on pump selection
The following criteria are critical determinants when selecting a vacuum pump:
The Application Your application will often determine the type of pump you require. For example if your application involves high vacuum laboratory processes, often a turbomolecular pump will be needed.
Ultimate Vacuum Required The choice must be made between high vacuum or low vacuum. This distinction is fundamental as certain pumps can only achieve low vacuums whereas others are designed to achieve far greater vacuum. This determines the type of pump to be used.
Pump Down Time Pump down time is the time it takes for the vacuum pump to evacuate the system so that your required vacuum is achieved. Pump down time for a specific pump can be calculated accurately using a formula if the size of the system is determinable. If you require quick pump down times bigger capacity pumps will be used.
Contaminants In The Process Certain contaminants in the process (eg: water vapor) affect both ultimate vacuum achievable as well as pump down time. Determining the contaminants can help to correctly determine the results achievable.
Continuous or fluctuating vacuum Some pumps are designed to operate continuously at low pressures, and can damage if repeatedly exposed to atmosphere, whereas others are designed to operate over greater pressure fluctuations.
Remember it is always best to consult the professionals so please do not hesitate to contact us for assistance. |
