Piston Compressors: Application Areas
Piston compressors – also known as reciprocal compressors – are designed to work within certain limitations. Find out more about them here. Read More…
Choosing the Right Vacuum Pump for You
As easy as it would make all of our lives, vacuum pumps are far from being “one size fits all”. Not only do you have the size to consider when choosing a vacuum pump, but more importantly type. I will briefly touch on some of the advantages and disadvantages associated with each vacuum technology we deal with. This should give you a better understanding of where to begin your search.
Reciprocating
- Advantages(traditional, large capacity ranges, easy to install, simple design, can handle vapors and some liquids)
- Disadvantages (a large number of parts subject to wear, low efficiency, high maintenance, higher noise level, higher initial cost on larger units, oil carryover)
Rotary Screw
- Advantages(long pump life, long maintenance life with lower maintenance costs over time, energy-efficient, vibration-free, virtually no oil exhaust, air or water-cooled, complete vacuum system)
- Disadvantages(large size and weight, limited operating pressure range, particulate and liquid sensitive, high initial cost)
Rotary Vane
- Advantages(low initial cost, direct drive-low vibration, wide operating pressure range, air-cooled, low noise level)
- Disadvantages(high maintenance due to vane wear, rebuild every 2-3 years or sooner, particulate sensitive, can be vapor sensitive, discharges oil out of the exhaust, unable to handle water or liquid slugs, frequent oil changes)
Rotary Piston
- Advantages(reliable, handles particulates well, long operation life, low rotational speed leading to less wear, large oil reservoirs for contamination dilution)
- Disadvantages(overheats if operating at high pressures, high vibration levels, high noise levels, large footprint)
Liquid Ring
- Advantages(low maintenance, high reliability, low vibration due to one moving part, handles contaminants very well, can use various sealing liquids, low noise levels)
- Disadvantages(water consumption and disposal, low energy efficiency, discharge saturated with liquid, particles can clog inlet and discharge, low water pressure can cause vacuum loss, subject to performance fluctuations based on water temperature)
Many of these advantages and disadvantages may already help you eliminate some choices based solely on the environment your pump will be operating in. If water is a costly utility in your area or consistent water pressure is a concern, you may want to eliminate liquid ring pumps from your selection choices altogether. If water is not a concern, but noise and vibration levels are, we may actually lean towards the liquid ring as a good fit for your application.
Look at that! We’re already narrowing your search down by eliminating options simply based on the operating environment. Here are some other questions to keep in mind when searching for the right pump for you…
Our range of vacuum pumps, offered by Ash Air
Claw Pumps
The Ash Air range of rotary claw vacuum pumps is the best alternative to rotary vane pumps. A vacuum claw pump is virtually zero maintenance and compared to rotary vane pumps can work at vacuum levels of 400 to 1000 mbar without overheating. Rotary claw vacuum pumps are the best choice for CNC guided wood routers.
The Atlas Copco DZS series are mono claw, dry vacuum pumps that offer simplicity, robustness, efficiency and contaminant handling capability.
Atlas Copco vacuum pumps have always offered lower lifecycle costs, higher performance, less energy consumption and easy maintenance. Now, with the DZS VSD⁺ intelligent vacuum pump, you get that and much more. Think about intelligence, optimization, a plug & play pump, digitalization and a mobile app.
Liquid Ring Pumps
The Ash Air range of humble liquid ring pumps is still the most reliable form of large volume vacuum generation available today. These liquid ring pumps are simple to use and very reliable, and the best option when sucked air contains a large amount of saturated gas.
Pompetravaini liquid ring pumps have a low noise level and water flow, a stainless-steel impeller, reliable suction valves, and a compact installation. We offer Atlas Copco LRP VSD+ intelligent liquid ring vacuum offers superior vacuum performance and connectivity. It provides optimum energy efficiency along with low operational and maintenance costs. Its ease of use, integration into existing processes and centralization capabilities make this a truly unique liquid ring vacuum pump.
Contact us today to find out more about our range of liquid ring pumps.
Rotary Vane Pumps
Dry and oil-sealed vane vacuum pumps are robust, affordable and easy in maintenance. You can use DVP vane pumps for wide range of application, for skin packaging, holding, lifting, thermoforming.
We offer the Atlas Copco GVD series of 2-stage oil sealed rotary vane vacuum pumps deliver excellent ultimate vacuum pressure, high pumping speeds and superior vapor handling capabilities with quiet operation.
Also, the Atlas Copco GVS 16-630 A series operates according to the proven oil-sealed rotary vane principle that has been successfully used for many years in all general vacuum applications of industry packed with innovative features that ensure the highest possible performance at the lowest possible lifecycle cost.
At Ash Air we pride ourselves on supplying quality, reliable rotary vane vacuum pumps to our customers, with industry-leading servicing and spare parts for all brands. We offer 24/7 nationwide support with experienced engineers on hand to help when and where you need it.
Sub Categories
Screw Vacuum Pumps
We have a quality range of oil-sealed screw pumps for sale that are energy efficient and have low life-cycle costs.
The Atlas Copco GHS VSD⁺ series vacuum pumps are ideal for a range of applications in plastics, glass, bottling, canning, wood, packaging, printing and paper, meat packaging and many more. The GHS 350-900 VSD⁺ is the ideal solution when a dedicated pump is required in the production area. Atlas Copco GHS VSD⁺ is available in Turbo version for fast cycling and dedicated configuration and as well in Humid version with a greater water handling capability.
Contact the Ash Air team today for your screw vacuum pump needs.
Ash Air has been around in New Zealand since 1979, and we’ve grown into a nationwide company with international support and a
reputation for quality and reliability.We look after all things compressed air for your business!
Ash Air's range of Chicago Pneumatic, Alup, Pneumatech, and Quincy compressors are used extensively around the world in industries
ranging from oil and gas to food, automotive and farming, and we bring you these world class compressors here in the land of the long white
cloud.Our technicians are compressed air equipment experts and are dedicated to addressing customer needs. Supported by a 13 locations
nationwide, Ash Air offers one of the widest selections of compressed air equipment and parts available today in New Zealand.
With Ash Air compressors, you can count on reliability and high performance for even the most demanding applications. We focus our
efforts on the following:
Talk to the team today:
You may think you know pretty much everything there is to know about vacuums. You push one around your house to pick up dust on the floor
and that’s about all there is to it.
Read More…
What is the difference between Wet vs. Dry Vacuum Pumps?
There are two types of vacuum pumps: the ‘wet’ kind, which is essentially a hydraulic pump, and the pneumatic, ‘dry’ variety.
Read More…
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