Plumbing and Mechanical

PM July 2022 cover

2022 July

The July 2022 issue of Plumbing & Mechanical features how manufacturers look at trends shaping tool design, the importance of American manufacturing, and much more.

Columnists

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Why it’s so hard to find workers

Dan Holohan: Why it’s so hard to find workers

Contractors struggling to find able-bodied workers share experiences on HeatingHelp.com.
Holohan
Dan Holohan
July 6, 2022
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My shop teacher was a wiry man who loved hand tools. We spent a week making a buzzer base. He taught us how to saw, sand and varnish. He introduced me to a Brace & Bit hand drill and went on and on about how this was better than an electric drill. “Can you feel the wood? It’s alive!” he said, and I could.


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double port purging valve

John Siegenthaler: Purging principles

Purging plays a major role in the reliable and efficient operation of closed loop hydronic systems.
Siegenthaler
John Siegenthaler, P.E.
July 5, 2022
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Nearly all closed-loop hydronic heating and cooling systems are supposed to be filled with water or a mixture of water and antifreeze. The only intentional air in the system is that contained in the expansion tank.


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Cover Story

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Departments

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Feature Articles

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New Products

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Resideo magnetic hydraulic separator
Product Focus: Radiant Products

Resideo magnetic hydraulic separator

July 7, 2022
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Resideo’s Magnetic Hydraulic Separator protects modern hydronic installs by providing control and protection through air, debris, dirt and ferrous removal, plus critical flow management between connected hydraulic circuits.


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