July 16, 2021

Debris Lurking in Your Hydronic System

Got 5? Minutes that is! Then you've landed in the right place on our Ask Caleffi Blog.

In this episode of the 5 Things You Need to Know - a mini training series featuring Cody Mack, our training and education manager - symptoms, problems and SOLUTIONS regarding debris in your hydronic system are discussed. Cody discusses these 5 THINGS:

→ OXYGEN
→ Yes! You can keep OXYGEN in check.
→ What is your best tool to keep OXYGEN OUT? (Hint: think air separation, a.k.a. DISCAL!)
→ Not all debris is created equal. (REMEMBER: non-ferrous can be a problem!)
→ Is there an insurance policy?

See how Hurst Mechanical is keeping boilers clean in Belmont, Michigan in this case study.

If you enjoyed this Episode of The Five Things You Need to Know, be sure to checkout the entire series on YouTube!

Last modified:

August 23, 2022

5 Things You Need To Know Air and Dirt Separation Hydronic Principles Magnetic Separation

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Comments

Frederick Ming | March 03, 2022

i HAVE ONE OF YOUR AIR SEPARATION VALVES IN MY SYSTEM THAT ALSO HAS DIRT IN CIRCULATION. AIR AND WATER NO LONGER COME OUT OF THE VALVE WHEN THE COVER SCREW IS REMOVED. IF I PRESS DOWN ON THE RELEASE VALVE WITH A SCREW DRIVER, HOT WATER EXITS, BUT STOPS ONCE I RELEASE. WHAT CAN BE DONE?
THANKS

dan_firkus | March 03, 2022

Frederick, Thank you for your question. My first recommendation is to not push down on the air discharge pin with a screwdriver. This will allow water to get above the float and to the bottom of the pin and could carry debris in to the seal and cause it to continue to leak water. The float inside the air vent assembly will raise and lower when air accumulates and is removed. As air accumulates above the float the flow will drop, pull open the pin and allow the air to escape, water will push the float back up to close the discharge pin. There is always a small air pocket above the float that prevents water from getting to the bottom of the discharge pin and keeps debris from getting into the seal. When you manually push the pin you remove that air pocket and allow water to get above the float. The water level will drop as air accumulates and it will return to its original operating state.

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Debris Lurking in Your Hydronic System

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