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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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1812 products

Caleffi Z-One 3-way valve body with 1" NPT connections and green brass construction.

Caleffi Z300617 Z-One 3-Way valve body, 1", NPT, 7.5 Cv, 20 PSI P

SKU #: CALEZ300617   |   MPN #: Z300617
$123.62
$123.62 $0.00
MSRP: $156

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass 3-way valve body with 1/2" sweat connections and adjustable stem on top.

Caleffi Z307433 Z-One 3-Way valve body, 1/2", Sweat LEAD FREE, 3.5 Cv, 30 PSI P

SKU #: CALEZ307433   |   MPN #: Z307433
$81.45
$81.45 $0.00
MSRP: $101

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass 3-way valve body with sweat connections and control stem on white background.

Caleffi Z307537 Z-One 3-Way valve body, 3/4", Sweat, 5.0 Cv, 25 PSI P

SKU #: CALEZ307537   |   MPN #: Z307537
$95.01
$95.01 $0.00
MSRP: $120

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass 3-way valve body with 1" male union connections and stainless steel stem.

Caleffi Z300687 Z-One 3-Way valve body, 1", Male Union, 7.5 Cv, 20 PSI P

SKU #: CALEZ300687   |   MPN #: Z300687
$89.36
$89.36 $0.00
MSRP: $108

Special Order. Expect 4-6 weeks for delivery, subject to change

Caleffi Z-One 3-way valve body with 1 1/4" sweat connections and green brass construction.

Caleffi Z300737 Z-One 3-Way valve body, 1 1/4", Sweat, 7.5 Cv, 20 PSI P

SKU #: CALEZ300737   |   MPN #: Z300737
$136.44
$136.44 $0.00
MSRP: $176

Special Order. Expect 4-6 weeks for delivery, subject to change

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

SKU #: CALE132536AFC   |   MPN #: 132536AFC
$295.82
$295.82 $0.00
MSRP: $376

Available in stock

Caleffi pressure gauge with dual scale dial showing 0-100 psi and 0-6 bar, brass bottom connection.

Caleffi NA10363 Pressure Gauge for PresCal Series and Autofill Series Valves

SKU #: CALENA10363   |   MPN #: NA10363
$21.42
$21.42 $0.00
MSRP: $21.42

Available in stock

Copper thermostatic cartridge with brass base and metal stem connector.

Caleffi F29636 THERMO CARTRIDGE 160 DEGREE F

SKU #: CALEF29636   |   MPN #: F29636
$36.22
$36.22 $0.00
MSRP: $38.20

Special Order. Expect 4-6 weeks for delivery, subject to change

Gray Caleffi Zone Relay control module with digital display panel and terminal connectors on right side.

Caleffi ZSR104 Z-One 4 zone pump Control

SKU #: CALEZSR104   |   MPN #: ZSR104
$234.04
$234.04 $259.30
MSRP: $338

Available in stock

Caleffi Z56P zone valve with gray and black actuator head and brass body with 1" press fittings.

Caleffi Z56P Z-One Zone Valve with Terminal Connection and 1" Press Fittings

SKU #: CALEZ56P   |   MPN #: Z56P
$244.54
$244.54 $0.00
MSRP: $322

Available in stock

Brass air separator with 1" press connections, ridged cap, and integrated service valve on top.

Caleffi 551066A DISCAL Air Separators: Brass, Press, Including service check valve, 1" Integral Press

SKU #: CALE551066A   |   MPN #: 551066A
$172.12
$172.12 $0.00
MSRP: $251

Available in stock

Brass DISCAL air separator with 1-1/4" NPT female connections and top vent valve.

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

SKU #: CALE551007A   |   MPN #: 551007A
$218.88
$218.88 $0.00
MSRP: $323

Special Order. Expect 4-6 weeks for delivery, subject to change

Brass backflow preventer with 1/2" press connections and black certification label.

Caleffi 573406A Backflow Preventer 1/2" Press ASSE 1012

SKU #: CALE573406A   |   MPN #: 573406A
$113.74
$113.74 $0.00
MSRP: $141

Available in stock

Brass backflow preventer with 3/4" NPT threaded connections, black Caleffi label band, and vent outlet.

Caleffi 573503A Backflow Preventer 3/4" NPT ASSE 1012

SKU #: CALE573503A   |   MPN #: 573503A
$99.19
$99.19 $0.00
MSRP: $121

Available in stock

Brass backflow preventer assembly with multiple ports and black cylindrical base, viewed from front.

Caleffi 574006A Backflow Preventer 1" FNPT ASSE 1013

SKU #: CALE574006A   |   MPN #: 574006A
$408.81
$408.81 $0.00
MSRP: $535

Available in stock

Brass backflow preventer valve with 3/4" NPT connections and black rubber cap, ASSE 1013 certified.

Caleffi 574050A Backflow Preventer 3/4" NPT ASSE 1013

SKU #: CALE574050A   |   MPN #: 574050A
$393.10
$393.10 $0.00
MSRP: $513

Available in stock

Brass backflow preventer with 1-1/4" female ports and dual check valves on horizontal body.

Caleffi 574700A Backflow Preventer 1-1/4" FNPT ASSE 1013

SKU #: CALE574700A   |   MPN #: 574700A
$723.01
$723.01 $0.00
MSRP: $973

Available in stock

Metal universal key with cross-shaped head and horizontal shaft with threaded connectors on ends.

Caleffi 387127 DVL Universal Key

SKU #: CALE387127   |   MPN #: 387127
$84.66
$84.66 $0.00
MSRP: $102

Available in stock

Brass backflow preventer with 1/2" NPT connections, black valve caps, and central black base unit.

Caleffi 574004A Backflow preventer 1/2" NPT ASSE 1013

SKU #: CALE574004A   |   MPN #: 574004A
$323.82
$323.82 $0.00
MSRP: $428

Available in stock

Brass backflow preventer with 3/4" press connections and black cylindrical base, featuring multiple ports and valves.

Caleffi 574056A Backflow Preventer 3/4" Press ASSE 1013

SKU #: CALE574056A   |   MPN #: 574056A
$414.94
$414.94 $0.00
MSRP: $558

Special Order. Expect 4-6 weeks for delivery, subject to change

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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