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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 535550HA PressCal PRV ASSE 1003, 3/4" PEX Expansion

Caleffi 535550HA PressCal PRV ASSE 1003, 3/4" PEX Expansion

SKU #: CALE535550HA   |   MPN #: 535550HA

Regular price $128.27
Sale price $128.27 Regular price $0.00
MSRP: $151

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Caleffi 551007A DISCAL Air Separators: Brass, 1-1/4" NPT Female

Caleffi 551007A DISCAL Air Separators: Brass, 1-1/4" NPT Female

SKU #: CALE551007A   |   MPN #: 551007A

Regular price $223.36
Sale price $223.36 Regular price $0.00
MSRP: $333

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Caleffi 519599A Different. Bypass 3/4" SWT with 3/4" SWT

Caleffi 519599A Different. Bypass 3/4" SWT with 3/4" SWT

SKU #: CALE519599A   |   MPN #: 519599A

Regular price $137.62
Sale price $137.62 Regular price $0.00
MSRP: $163

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Caleffi 127369AF 1G0 FlowCal PIBV Low Lead 1" Sweat 1 GPM

Caleffi 127369AF 1G0 FlowCal PIBV Low Lead 1" Sweat 1 GPM

SKU #: CALE127369AF1G0   |   MPN #: 127369AF 1G0

Regular price $132.87
Sale price $132.87 Regular price $0.00
MSRP: $160

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Caleffi 127369AF 2G0 FlowCal PIBV Low Lead 1" Sweat 2 GPM

Caleffi 127369AF 2G0 FlowCal PIBV Low Lead 1" Sweat 2 GPM

SKU #: CALE127369AF2G0   |   MPN #: 127369AF 2G0

Regular price $132.87
Sale price $132.87 Regular price $0.00
MSRP: $160

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Caleffi 127366AF 10G FlowCal PIBV Low Lead 1" Press 10 GPM

Caleffi 127366AF 10G FlowCal PIBV Low Lead 1" Press 10 GPM

SKU #: CALE127366AF10G   |   MPN #: 127366AF 10G

Regular price $172.53
Sale price $172.53 Regular price $0.00
MSRP: $208

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Caleffi 519700A Different. Bypass1-1/4" NPT w/1-1/4"NPT

Caleffi 519700A Different. Bypass1-1/4" NPT w/1-1/4"NPT

SKU #: CALE519700A   |   MPN #: 519700A

Regular price $240.88
Sale price $240.88 Regular price $0.00
MSRP: $308

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Caleffi 127366AF 6G0 FlowCal PIBV Low Lead 1" Press 6 GPM

Caleffi 127366AF 6G0 FlowCal PIBV Low Lead 1" Press 6 GPM

SKU #: CALE127366AF6G0   |   MPN #: 127366AF 6G0

Regular price $166.43
Sale price $166.43 Regular price $0.00
MSRP: $208

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Caleffi 127369AF 2G6 FlowCal PIBV Low Lead 1" Sweat 2.6 GPM

Caleffi 127369AF 2G6 FlowCal PIBV Low Lead 1" Sweat 2.6 GPM

SKU #: CALE127369AF2G6   |   MPN #: 127369AF 2G6

Regular price $132.87
Sale price $132.87 Regular price $0.00
MSRP: $160

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Caleffi 127366AF 5G0 FlowCal PIBV Low Lead 1" Press 5 GPM

Caleffi 127366AF 5G0 FlowCal PIBV Low Lead 1" Press 5 GPM

SKU #: CALE127366AF5G0   |   MPN #: 127366AF 5G0

Regular price $166.43
Sale price $166.43 Regular price $0.00
MSRP: $208

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Caleffi 127369AF 3G0 FlowCal PIBV Low Lead 1" Sweat 3 GPM

Caleffi 127369AF 3G0 FlowCal PIBV Low Lead 1" Sweat 3 GPM

SKU #: CALE127369AF3G0   |   MPN #: 127369AF 3G0

Regular price $132.87
Sale price $132.87 Regular price $0.00
MSRP: $160

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Caleffi 519609A Differential Bypass 1" NPT with 1" Sweat

Caleffi 519609A Differential Bypass 1" NPT with 1" Sweat

SKU #: CALE519609A   |   MPN #: 519609A

Regular price $203.51
Sale price $203.51 Regular price $0.00
MSRP: $255

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Caleffi 127366AF G75 FlowCal PIBV Low Lead 1" Press .75 GPM

Caleffi 127366AF G75 FlowCal PIBV Low Lead 1" Press .75 GPM

SKU #: CALE127366AFG75   |   MPN #: 127366AF G75

Regular price $166.43
Sale price $166.43 Regular price $0.00
MSRP: $208

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Caleffi 520061A Thermostatic Mixing 1-1/4 Inch Brass

Caleffi 520061A Thermostatic Mixing 1-1/4 Inch Brass

SKU #: CALE520061A   |   MPN #: 520061A

Regular price $206.09
Sale price $206.09 Regular price $0.00
MSRP: $261

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Caleffi 132556A QuickSetter Balancing Valve w/ Flow Meter 3/4" press 2-7 GPM

Caleffi 132556A QuickSetter Balancing Valve w/ Flow Meter 3/4" press 2-7 GPM

SKU #: CALE132556A   |   MPN #: 132556A

Regular price $244.35
Sale price $244.35 Regular price $0.00
MSRP: $310

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Caleffi 127369AF 4G0 FlowCal PIBV Low Lead 1" Sweat 4 GPM

Caleffi 127369AF 4G0 FlowCal PIBV Low Lead 1" Sweat 4 GPM

SKU #: CALE127369AF4G0   |   MPN #: 127369AF 4G0

Regular price $132.87
Sale price $132.87 Regular price $0.00
MSRP: $160

Special Order

Caleffi 127366AF 7G0 FlowCal PIBV Low Lead 1" Press 7 GPM

Caleffi 127366AF 7G0 FlowCal PIBV Low Lead 1" Press 7 GPM

SKU #: CALE127366AF7G0   |   MPN #: 127366AF 7G0

Regular price $172.53
Sale price $172.53 Regular price $0.00
MSRP: $208

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Caleffi 132666A Balancing 1 Inch Press Brass

Caleffi 132666A Balancing 1 Inch Press Brass

SKU #: CALE132666A   |   MPN #: 132666A

Regular price $282.76
Sale price $282.76 Regular price $0.00
MSRP: $364

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Caleffi 520051A Angle body thermostatic mixing valve, 1" union conn.

Caleffi 520051A Angle body thermostatic mixing valve, 1" union conn.

SKU #: CALE520051A   |   MPN #: 520051A

Regular price $153.77
Sale price $153.77 Regular price $0.00
MSRP: $187

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Caleffi 127359AF 10G FlowCal PIBV Low Lead 3/4" Sweat 10 GPM

Caleffi 127359AF 10G FlowCal PIBV Low Lead 3/4" Sweat 10 GPM

SKU #: CALE127359AF10G   |   MPN #: 127359AF 10G

Regular price $118.18
Sale price $118.18 Regular price $0.00
MSRP: $139

Special Order

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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