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Armstrong International

More than a century of sage knowledge and in-depth experience has made us uniquely skilled in designing and producing the rugged, reliable products that successfully reduce emissions and improve energy efficiency for customers all over the world. Our products and packaged solutions consistently deliver best-in-class quality as they work together to create the most intelligent system solutions. Armstrong products and packaged solutions are backed by our outstanding technical support, and our digital monitoring technology enables us to evaluate many products in real-time. Often the first to market, Armstrong International was the inventor of the inverted bucket trap, and our company holds more than 50 patents on exceptional products and software.

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Macon Controls

A respected national supplier of radiator valves and regulating sensors for the heating and cooling industry since 1975, Macon Controls – a division of the Tunstall Corporation – maintains a solid reputation for energy-efficient products, trouble-free service, and virtually non-existent failure rates. Distinguished by superior quality and performance, all Macon valves and controls conform to ASHRAE Standard 102P-1983 and European Standard EN 215/1215 and carry a 12-month warranty.

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Spence Engineering

Spence continues its "History of Innovation" by continuing to develop and manufacture quality steam specialty and fluid control products and solutions for the HVAC and industrial marketplace. Spence has introduced several innovative, cost-saving products to the HVAC and industrial process markets including the type "J" Series Pneumatic Control Valve (1986), "Nova" NFT Series Variable Orifice Steam Traps - the first "Made In The USA" float steam trap (1992), CDH Series patented thermostatic sanitary steam trap (2001) and the "CoMBo" CME Series - the industry's first condensate measuring elbow thermostatic steam trap (2006).

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Tunstall

Founded in 1958, Tunstall Corporation is a recognized leader in the steam and hydronics industry. We operate in all facets of the industry, including design, engineering, manufacturing, sales and distribution. Tunstall is known for its industry expertise, quality products, resourcefulness and customer service. We combine our industry expertise with an entrepreneurial approach and professional management.

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