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Collection: Caleffi

Founded in 1956 in Italy, Caleffi is a global leader in hydronic heating, plumbing, and air conditioning components. From thermostatic mixing valves and pressure reducing valves to air separators and zone valves, Caleffi engineers for precision, efficiency, and reliability.

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1805 products

Caleffi 520416A AngleMix 3-Way Mixing valve 1/2" press union

Caleffi 520416A AngleMix 3-Way Mixing valve 1/2" press union

SKU #: CALE520416A   |   MPN #: 520416A

Regular price $232.83
Sale price $232.83 Regular price $0.00
MSRP: $306

Special Order

Caleffi 127359AF 6G0 FlowCal PIBV Low Lead 3/4" Sweat 6 GPM

Caleffi 127359AF 6G0 FlowCal PIBV Low Lead 3/4" Sweat 6 GPM

SKU #: CALE127359AF6G0   |   MPN #: 127359AF 6G0

Regular price $125.61
Sale price $125.61 Regular price $0.00
MSRP: $139

Special Order

Caleffi 551035A DISCAL Air Separators: Brass, 1-1/4" Sweat

Caleffi 551035A DISCAL Air Separators: Brass, 1-1/4" Sweat

SKU #: CALE551035A   |   MPN #: 551035A

Regular price $205.71
Sale price $205.71 Regular price $0.00
MSRP: $315

Available in stock

Caleffi 551006A DISCAL Air Separators: Brass, 1" NPT Female

Caleffi 551006A DISCAL Air Separators: Brass, 1" NPT Female

SKU #: CALE551006AC   |   MPN #: 551006AC

Regular price $158.45
Sale price $158.45 Regular price $0.00
MSRP: $236

Available in stock

Caleffi 521509A MixCal Adjustable Thermostatic and Pressure Balanced Mixing Valve (sweat, with temperature gauge) 3/4" Sweat

Caleffi 521509A MixCal Adjustable Thermostatic and Pressure Balanced Mixing Valve (sweat, with temperature gauge) 3/4" Sweat

SKU #: CALE521509A   |   MPN #: 521509A

Regular price $163.51
Sale price $163.51 Regular price $0.00
MSRP: $254

Available in stock

Caleffi 521616A MixCal Adjustable Thermostatic and Pressure Balanced Mixing Valve, 1" Press

Caleffi 521616A MixCal Adjustable Thermostatic and Pressure Balanced Mixing Valve, 1" Press

SKU #: CALE521616A   |   MPN #: 521616A

Regular price $230.66
Sale price $230.66 Regular price $0.00
MSRP: $369

Available in stock

Caleffi 535056A AutoFill Automatic Filling Valve (commercial applications) 3/4" Press Union

Caleffi 535056A AutoFill Automatic Filling Valve (commercial applications) 3/4" Press Union

SKU #: CALE535056A   |   MPN #: 535056A

Regular price $115.24
Sale price $115.24 Regular price $0.00
MSRP: $196

Available in stock

Caleffi Z56 Z-One Zone Valve with Terminal Connection - 1" Sweat

Caleffi Z56 Z-One Zone Valve with Terminal Connection - 1" Sweat

SKU #: CALEZ56   |   MPN #: Z56

Regular price $186.42
Sale price $186.42 Regular price $0.00
MSRP: $283

Available in stock

Caleffi 551005AC Air Separator 3/4 Inch NPT Brass

Caleffi 551005AC Air Separator 3/4 Inch NPT Brass

SKU #: CALE551005AC   |   MPN #: 551005AC

Regular price $119.48
Sale price $119.48 Regular price $0.00
MSRP: $219

Available in stock

Caleffi 132536AFC QuickSetter+ Balancing Valve (low-lead), 3/4" Press

Caleffi 132536AFC QuickSetter+ Balancing Valve (low-lead), 3/4" Press

SKU #: CALE132536AFC   |   MPN #: 132536AFC

Regular price $174.22
Sale price $174.22 Regular price $0.00
MSRP: $387

Available in stock

Caleffi 535950HA PressCal PRV ASSE 1003, 3/4" Sweat

Caleffi 535950HA PressCal PRV ASSE 1003, 3/4" Sweat

SKU #: CALE535950HA   |   MPN #: 535950HA

Regular price $112.55
Sale price $112.55 Regular price $0.00
MSRP: $151

Available in stock

Caleffi 551069A DISCAL Air Separator 2" Press

Caleffi 551069A DISCAL Air Separator 2" Press

SKU #: CALE551069A   |   MPN #: 551069A

Regular price $390.77
Sale price $390.77 Regular price $0.00
MSRP: $628

Available in stock

Caleffi 551706A DISCAL Rotating Collar Air Separator 1"MNPT Union

Caleffi 551706A DISCAL Rotating Collar Air Separator 1"MNPT Union

SKU #: CALE551706A   |   MPN #: 551706A

Regular price $196.77
Sale price $196.77 Regular price $0.00
MSRP: $357

Available in stock

Caleffi Z55P Z-One 2-Way,NC TERMINAL Block, w/ MS,24V,3/4",Union Press,7.5Cv

Caleffi Z55P Z-One 2-Way,NC TERMINAL Block, w/ MS,24V,3/4",Union Press,7.5Cv

SKU #: CALEZ55P   |   MPN #: Z55P

Regular price $216.32
Sale price $216.32 Regular price $0.00
MSRP: $293

Available in stock

Caleffi NA51253 Serviceable low lead check 3/4" FNPT

Caleffi NA51253 Serviceable low lead check 3/4" FNPT

SKU #: CALENA51253   |   MPN #: NA51253

Regular price $96.77
Sale price $96.77 Regular price $0.00
MSRP: $114

Available in stock

Caleffi NA51379 Serviceable low lead Check Valve 1-1/4" sweat

Caleffi NA51379 Serviceable low lead Check Valve 1-1/4" sweat

SKU #: CALENA51379   |   MPN #: NA51379

Regular price $111.31
Sale price $111.31 Regular price $0.00
MSRP: $138

Available in stock

Caleffi NA51376 Serviceable low lead Check Valve 1-1/4" press

Caleffi NA51376 Serviceable low lead Check Valve 1-1/4" press

SKU #: CALENA51376   |   MPN #: NA51376

Regular price $158.34
Sale price $158.34 Regular price $0.00
MSRP: $209

Available in stock

Caleffi 551068A DISCAL Air Separator 1 1/2" Press

Caleffi 551068A DISCAL Air Separator 1 1/2" Press

SKU #: CALE551068A   |   MPN #: 551068A

Regular price $318.87
Sale price $318.87 Regular price $0.00
MSRP: $514

Available in stock

Caleffi 551067A DISCAL Air Separator 1 1/4" Press

Caleffi 551067A DISCAL Air Separator 1 1/4" Press

SKU #: CALE551067A   |   MPN #: 551067A

Regular price $224.91
Sale price $224.91 Regular price $0.00
MSRP: $398

Available in stock

Caleffi 116150AC001 Thermal Balancing 3/4 Inch NPT Brass

Caleffi 116150AC001 Thermal Balancing 3/4 Inch NPT Brass

SKU #: CALE116150AC001   |   MPN #: 116150AC001

Regular price $322.62
Sale price $322.62 Regular price $0.00
MSRP: $434

Available in stock

Caleffi FAQ

What is Caleffi?

Caleffi is a manufacturer of hydronic heating and plumbing components, known for high-quality valves, fittings, and system solutions designed for efficiency and reliability.

What products does Caleffi offer?

Caleffi offers mixing valves, pressure reducing valves (PRVs), pressure relief valves, air separators, zone valves, and hydronic system controls for plumbing and HVAC applications.

What is a Caleffi mixing valve used for?

Caleffi mixing valves, including thermostatic and temperature mixing valves, regulate water temperature to improve safety, comfort, and system efficiency.

What does a Caleffi pressure reducing valve do?

A Caleffi pressure reducing valve (PRV) controls incoming water pressure, protecting plumbing systems and fixtures from damage caused by high pressure.

What is a Caleffi air separator?

Caleffi air separators remove air from hydronic heating systems, improving efficiency, reducing noise, and preventing system damage.

Are Caleffi products high quality?

Caleffi products are made from premium materials and engineered for durability, offering long-lasting performance in demanding hydronic and plumbing systems.

Where are Caleffi products made?

Caleffi was founded in Italy and operates globally, with manufacturing and distribution supporting markets including Caleffi North America.

Can Caleffi products be used in residential and commercial systems?

Yes, Caleffi components are designed for residential, commercial, and industrial hydronic systems, ensuring consistent performance across applications.

Do Caleffi products help improve energy efficiency?

By regulating temperature, pressure, and air removal, Caleffi valves and components help hydronic systems operate more efficiently and reduce energy waste.

Why choose Caleffi for hydronic systems?

Caleffi stands out for precision engineering, reliable performance, and a complete range of hydronic solutions that support safe, efficient plumbing and heating systems.

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