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D.F. Brophy and Son Inc.
Air Compressors               Industrial/Commercial            Sales   Service   Parts
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Welcome To D.F.Brophy and Son Since 1950 and for 3 generations our Family owned business has been helping large industry to small business owners with Air Compressor solutions to fit their needs. Our thousands of satisfied customers over the last 60 years continue to return for sales,service,parts and upgrades to the latest technology Air Compression equipment.We are committed to our customers and our experienced staff are always on hand to give you detailed information on any Air Compressor to suite your specific business model. We service all Air Compressor makes and models. Service contracts are available on all Compressors to keep you're equipment at peek performance.Our field technicians are highly trained to repair or advise you on any Air Compressor issue you may have large or small. We have a large data base with Compressor parts for all models and makes.Sales and service all of Massachusetts,Rhode Island,Eastern Connecticut ,Southern New Hampshire.Air Compressors and parts are available for shipping nation wide USA and Canada. 
(781) 844-2848
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Rotary Screw Compressors
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Service -Sales All Air Compressor Brands/ Models New/Used
Since 1950
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Air Compressor  Parts Nationwide and Canada
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D.F.Brophy and Son air Compressors
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                                                                             Industrial/Commercial    Corporate Head Quarters P.o. Box 1085 Burlington, Mass. 01803 Phone (781) 272-0353                                                                                                                                                                                                         South Shore Service and Parts Center 15 Beachwood Rd Plymouth, Mass. 02360         Phone (781) 844-2848     Fax (508) 224-4287
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Ready to stop moisture from damaging your tools? The Kaeser Modular Membrane Dryer (KMM) is a simple, reliable way to produce dew points from +40°F to -40°F. These low maintenance dryers feature a bundle of tube shaped membranes that allow only water vapor to pass. At the discharge end, a small amount of dry compressed air sweeps the water vapor out of the dryer.

KMMs work well in many applications, and do not need to be oversized for peak flow conditions.  Modular connections mate the KMM with prefilters and afterfilters for a quick, clean and easy installation. The optional purge saver prevents the loss of valuable compressed air and extends the life of the membrane bundle.

Eliminate Moisture with the KMM Dryer
Easy modular design
Kaeser Modular Membrane Dryer
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D.F. Brophy and Son Inc.     Air Compressors


FREE ENERGY IN COMPRESSED AIR.
by Bruce Mulliken, Green Energy News

Energy innovations pop up in the least expected places.

Compressed air is far more useful than just for inflating tires. It’s used in repair shops and production facilities to run a variety of hand-held tools like sanders, grinders, impact wrenches, drills, caulking guns, nailers, paint spray guns, cutting tools, blow guns, and polishers. Chances are your friendly mechanic uses air powered tools to loosen and tighten bolts on your car. The body shop that fixed your dented fender used air tools to sand it smooth then paint it later. Homes – stick-built on site or modular from a factory – are nailed together with air powered nail guns and painted afterwards with compressed air, not a brush or roller.

And that’s just hand-held air powered (pneumatic) tools. In large manufacturing facilities air is used to move parts and components from one place to another, and compressed air is even used in robotics to position, machine, assemble and fasten components together to make finished products.

Compressed air has been stopping trains for well over a century and stopping trucks for decades, too. Inventor/industrialist George Westinghouse earned his initial wealth with his patented air brake system.

Motor Development International (MDI) is still planning to launch zero-emission cars powered by compressed air.

The compression of air and putting it to work is big business. Very big.

Compressed air is an energy storage medium. It takes energy to compress air but that energy is utilized later on in the work it does, like grinding out cavities in your teeth.

But now with a new product that seems obvious in hind sight, compressing air can be energy neutral – net zero – when the heat generated in compression is put to work.

Atlas Copco, a UK developer and provider of compressed air and gas equipment, generators, construction and mining equipment, industrial tools and assembly systems, is now launching its Carbon Zero line of oil-free air compressors. With advanced heat recovery systems the industrial compressors have been certified as recovering 100 per cent of the electrical energy input in the form of hot water at up to 90 degrees C (194 degrees F).

Atlas Copco's ZR 55-750 industrial grade compressors (rated from 55 to 750kW) are two-stage, oil-free, water-cooled units. Heat, that can be put to work, is captured at various points in the units. There is an intercooler between the first and second compressor stages, plus an aftercooler. There’s an oil cooler to grab heat from gearbox oil. But the interesting part is the extraction of heat from air as it’s compressed. Water jackets at both compressor stages do this job. The company describes the process:

“Because the ambient air input to the compressor contains moisture, this is condensed in the compression and cooling process, releasing latent heat (or condensation heat). This energy, transferred to the cooling water, results in the compressor generating both compressed air and hot water.”

At least 90 percent of the energy recovery (energy in the form of hot water) comes from capturing heat generated by the mechanical functions of the compressor. The rest of the heat captured comes from that latent source.

Obviously this is a compressor for situations where lots of pressurized air is needed and captured energy can be put to work in space heating or industrial processes. But the innovation shouldn’t be trivialized. Compressed air does considerable work in industries of all types. If a company can get compressed air with free-heat in the process, money is saved, energy consumption is reduced and emissions associated with making that heat previously are eliminated, then nearly everyone wins.
COMPRESSED AIR news and articles of interest
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