Coffee with Caleffi: Pumped Glycol vs. Drainback Revisited

Training and education manager leads technical training webinar for plumbing contractors, designers and wholesalers.
Coffee with Caleffi: Pumped Glycol vs. Drainback Revisited

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Bob “Hot Rod” Rohr, Caleffi training and education manager, leads an online webinar “Pumped Glycol vs. Drainback Revisited," from noon to 1 p.m. CT on Thursday, Aug. 25.

He takes a fresh look at solar thermal systems, revisiting the latest step-by-step system design.

There is no cost for the complimentary education series, Coffee with Caleffi, but registration is required.

Topics include:

  • Solar design – step-by-step sizing information, tips and pointers for this important first step
  • Expectations – how much DHW to expect from a system.
  • The advantages of drainback vs. closed-loop glycol – by the numbers.
  • Is there ever too much of a good thing with solar thermal?
  • The sweet-spot jobs and how to look for opportunities
  • Current information on the latest incentive programs in the U.S. and Canada.

Last month’s webinar, “Applying Pressure-Reducing Valves in Plumbing Systems,” was led by Julius Ballanco, P.E., president of JB Engineering and Code Consulting.

Topics included:

  • What is a PRV (pressure-reducing valve)?
  • Are there different types, sizes, configurations?
  • How they work
  • Do they have a Cv rating like a control valve or mixing valve?
  • Selecting the right one for your project
  • What kinds of approvals or certifications are applicable to PRVs?
  • Does every building and every home need one?
  • Is more than one needed in a given building?
  • Does a PRV need to withstand high water temperatures?
  • What can cause a PRV to make objectionable noise?
  • What other devices are commonly installed on the same pipe leg?
  • Common issues related to installation and maintenance
  • Are there changes in technology or regulations that would affect PRV designs or product requirements?

See the webinar:



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