• Training the Industry

    idronics™

    A journal of design innovation for hydronic, plumbing and renewable energy professionals.

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  • LEGIOMIX®

    Electronic Mixing Valve with digital temperature control for commercial DHW systems.

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  • CONTECA Heat Metering

    CONTECA™

    Measure, calculate and record thermal energy.

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  • We've got you covered!

    WE’VE GOT YOU COVERED

    Take a look at our comprehensive product catalog.

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  • High flow with quiet pressure control

    Pressure Reducing Valves

    High flow and quiet pressure control

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  • Coffee with Caleffi™

    Our online and complimentary technical training webinar series. What’s next?

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  • Installation Tip Videos

    Install Tips

    Easy-to-access videos

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  • REVIT Library

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Coffee with Caleffi™

Ready or not, here comes the snow and ice season. Guest speaker Max Rohr, REHAU Academy Manager, will dig into hydronic SIM systems at the next webinar.

#CaleffiClassic Champion Announced

Hey batta batta batta!  The #CaleffiClassic photo contest was in full swing this past October.

Get the air out.

Dissolved oxygen and other gasses within hydronic systems can wreak havoc. DISCAL® air separators force micro-bubble gasses to be efficiently collected and automatically vented from the system.

Set it and forget it.

THERMOSETTER™:  the industry’s only field adjustable thermal balancing valve
for domestic hot water systems.

TECHNICAL JOURNAL

idronics™

A journal of design innovation for hydronic, plumbing and renewable energy professionals

Discover
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Coffee with Caleffi
EDUCATION

Coffee with Caleffi™

Our online and complimentary technical training series

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Automatic Fast Fill

AutoFill™

The high quality valve automatically and quickly fills a hydronic system to a preset pressure.

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Latest productsGo to the Catalog

520 - AngleMix™ Thermostatic Mixing Valve (with temperature gauge)
AngleMix™ Thermostatic Mixing Valve (with temperature gauge)
CatalogTechnical Brochure
7504 - CONTECA™ Heat Meter
CONTECA™ Heat Meter
CatalogTechnical Brochure
533H - PresCal™ Compact
PresCal™ Compact
CatalogTechnical Brochure
NA5026 - PLUMBVENT™ Automatic Air Vent (low lead)
PLUMBVENT™ Automatic Air Vent (low lead)
CatalogTechnical Brochure
574 - Backflow Preventer (low lead, ¾" F NPT)
Backflow Preventer (low lead, ¾" F NPT)
CatalogTechnical Brochure
6000 - LEGIOMIX® Electronic Mixing Valve
LEGIOMIX® Electronic Mixing Valve
CatalogTechnical Brochure
535H - PresCal™ Pressure Reducing Valve (low lead, pre-adjustable)
PresCal™ Pressure Reducing Valve (low lead, pre-adjustable)
CatalogTechnical Brochure
NA551 - DISCAL® Air Separators, ASME (8 - 12" ANSI Flange)
DISCAL® Air Separators, ASME (8 - 12" ANSI Flange)
CatalogTechnical Brochure
5517 - DISCAL® Air Separators for Vertical or Horizontal Pipes (brass)
DISCAL® Air Separators for Vertical or Horizontal Pipes (brass)
CatalogTechnical Brochure