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We advise no; keep the body above the horizon when mounted in a horizontal pipe, or mount it in a vertical pipe. If mounted under the pipe there is a potential for dirt and other sediment to settle in the diaphragm and other moving parts of the cartridge which may, over time, affect the performance of the valve. The...

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 (...

Yes, all our products that come from Italy meet the Buy American Act per FAR 52.225-12 Trade Agreements Act with content originating in countries that have signed an international trade agreement with the United States. The products that Caleffi North America...

Fall-off pressure is the reduction of pressure at the outlet of a pressure reducing valve (PRV), when downstream fixtures are open to allow flow through the PRV.  If, for example, a PRV is set at 70 psi, that is the static pressure setting and represents the PRV downstream pressure in a no-flow condition. As soon as fixtures...