Compressed Air Best Practices - October 2008 - (Page 32) | 10/08 Compressed Air Industry AUTOMOTIVE TRANSIT | H E A V Y- D U T Y A I R C O M P R E S S O R S : D E VA I R , I N C . When should one buy a rotary screw compressor? Again each customer will have unique circumstances and priorities. Rotary screw compressors can be more efficient than piston compressors in installations where air demand is pretty constant. A 24-hour operation, which is racking up 8,000+ hours, is ideal for capturing the energy efficiencies of rotary screw compressors. Recently we have added the DVS series of variable speed rotary compressors to address the needs of customers demanding flexible air volume supply and energy savings. The sound attenuation possible with rotary screws is also desirable to some customers. We designed Devair rotary screw air compressor sound attenuation packages working together with Canada’s National Research Council. The results have been very worthwhile as we have some models with 63 dba sound levels! A tank-mounted rotary screw compressor with dryer package ready for shipment. Rotary screw compressors are also delivered with PLC controls which allows end users the ability to monitor and manage the air compressor from a remote location. What industries does Devair focus on? Devair products are strong with most applications in medium to small industry. We work with a lot of body shops in automotive refinishing and also with automotive mechanical service. Our products are popular in woodworking shops, building materials and HVAC — to name a few more applications. What’s happening with the new waterborne regulations? The demand for compressed air has been increased with waterborne regulations. Water-based paints require increased air flow to cure when compared with solvent based products, typically bodyshops invest in spraybooths equipped to reduce drying time of waterbased paint and add air guns to dry smaller refinished areas. Each air gun (one nozzle) uses 7 to 13 cfm of air, depending on the number of bays equipped with these guns demand for compressed air can increase significantly. 32 www.airbestpractices.com http://www.airbestpractices.com
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