by Mark Olson, CEO of Caleffi North America, Inc.
as featured in HPAC Magazine
February 2017 Two common problems resulting from poor water quality are excessive corrosion and limescale accumulation. In Part I (...
A Y-strainer is an in-line filter for hydronic systems. As the strainer starts trapping dirt, resistance to flow (pressure drop) will increase. Measuring the pressure drop across the strainer while the system pumps are running, will indicate how plugged the strainer is.
The Caleffi...
Yes, you can. Air bubbles that make their way into the upper part of a dirt separator housing will be automatically removed if an air vent is installed. Our brass dirt separators, such as the 5462 Series DIRTCAL and...
It is common practice to connect a boiler trim kit, or just an expansion tank, to the bottom of a Caleffi 551 Series DISCAL air separator. The 551 has a 1/2" NPT female thread on the bottom and can be ordered with, or without, a "service check valve...
Magnetic dirt removal in hydronic heating and cooling systems is a hot topic these days. Check out this short video, showing how the Caleffi 5465 Series DIRTMAG works.
To learn more about magnetic dirt removal technology and...
With outdoor reset, the system does not run at one fixed water temperature. It is called outdoor reset because the water temperature is changed (or reset) based on a change in the outdoor temperature. This is used to match the heating system’s output to the heat loss of the structure. As the outside temperature lowers, the rate of heat loss increases...
Check out this amazing video showing how a Caleffi 5465 Series DIRTMAG is separating the magnetite out of a commercial hydronic system! This 12 year-old system recently had the old cast iron boiler replaced with new high-...
We get this question often: "What is the pressure drop in my hydraulic separator?" It's a good question; after all we know that the circulator adds head energy and everything else in a hydronic system causes head energy losses. The answer to the question is: "It's negligible; you don't need to...
