What happens in the field when you need to loosen a union to service a valve? Do you always need to replace the sealing elements? How can the Posi-Stop™ embedded O-ring union system help? Which products are shipping now with Posi-Stop?

Former service plumber and current Caleffi tech. support ace Matt DeLuca joins the guys today to talk about Posi-Stop as a first-time guest on the podcast. There are many tips and tricks that plumbers use in the field to get fittings to seal. No need for creativity or guesswork with Posi-Stop. An EPDM O-ring seal compresses to a controlled value by way of a positive metal-to-metal stop.

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In this episode, Greg and Dan talk to "the man, the myth, the legend" of zone valves, Mike Schreiner, Caleffi CTO. Mike has been working with zone valves for his entire career and is pleased to share his wealth of knowledge to help our Ask Caleffi audience learn:

What's important when considering a zone valve? How do you properly size? What is the flow coefficient (a.k.a. Cv or differential pressure) and why is it important? BTW: there is a BIG difference between close-off pressure and system pressure! Zone valves and actuators... say what? In which application is a 2-way valve best used? A 3-way? How are end switches applied? What's the difference between a micro-switch and a Reed switch? Normally Opened. Normally closed. Why Z-one? (one valve for ALL!) Valve versatility with union connections. How about relay boards? (you CAN'T wire a zone valve wrong with a relay board!)

All this and MORE when you Get in the Zone with Mike!

What drives the adoption of solar hot water systems? Are there specific factors that signal the beginning or end of a spike in system installations? Which applications are always a good fit? What qualifications do you need to work on these systems? How do you evaluate a site to know if the location is good for solar?

In this episode, Greg and Dan are joined by Carlson-Holohan Industry Award of Excellence winning Caleffi Training Manager Bob Rohr. Over his career, Bob has been all over North America to help install, commission and educate about solar thermal systems. The team will talk about when and where financial incentives have helped offset the cost of these systems. They also discuss resources to help evaluate potential sites for solar. For rebates specific to you zip code, check https://www.dsireusa.org/

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Survey:
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