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WORKPLACE For further information contact the team at Mac Valves Pacific on 0800-770-780 or email dust@macvalves.co.nz. Designs allow direct drop-in replacement for existing pulse technology. Designed better – the MAC Valve way. www.engineeringnews.co.nz 41 MAC PULSE VALVE TECHNOLOGY FOR BAG -HOUSE DUST COLLECTORS Big savings and quick pay-back can now be realised thanks to Mac Valves' newly-designed pulse valve. The company has responded to industry requests to develop a cost-effective solution for bag-houses. The development was instigated through a need/ gap in the market, with diaphragm valve failures and their associated air leaks, access issues, and maintenance costs prompting the need of a spool valve specifically for bag-house cleaning. As it is, bag-house dust collectors are often regarded as a necessary evil but they are a must-have for emission control. They are necessary due to being an efficient method for a workplace to manage dust and particle emissions; evil as the associated costs of energy and consumables to maintain in good working order can be a burden. Drawing on over 50 years of valve design and following Mac’s design philosophy of high shifting forces, the outcome was a series of valves ranging from ¾- to 3-inch to suit all known styles of bag-house. The high shifting forces from Mac’s patented designs lead to a number of benefits, high forces better manage contamination, couple this with the valve wiping action and long life cycles are delivered. High shifting forces enable faster, repeatable, response times in the on and off cycles delivering operational savings in a number of areas. The response times of the Mac valve enables a superior air pulse to be delivered to the filter element, cleaning the element more effectively leads to a longer dwell time between cleaning cycles and this in turn delivers air savings and extends the life of the element due to a lower cleaning frequency. The effectiveness of the cleaning pulse has seen many enterprises reducing the bag-house air supply pressure, this in turn, multiplies the air savings through reduced energy usage, and furthermore, this can also extend compressor service frequencies due to the lower demands of the compressed air system. The Mac pulse valve range incorporates both a main valve body and a valve base. For existing installations, Mac has developed a range of adaptor plates that HEALTH & SAFETY enable the valve body to be mounted atop the existing installation valve base. This means a Mac pulse valve can be retrofitted in the same time-frame as it takes to replace a ruptured diaphragm. The MAC Pulse Valve MAC Pulse Valve Series


ENsep17-eMag
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