Free Shipping on All Orders!

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.
Compare (0/5)

1812 products

Brass air separator with 3/4 inch NPT connections, cylindrical body with threaded top vent and side ports.

Caleffi 551005AC Air Separator 3/4 Inch NPT Brass

SKU #: CALE551005AC   |   MPN #: 551005AC
$148.93
$148.93 $0.00
MSRP: $213

Available in stock

Brass air separator with 1" sweat connections on sides, vent valve on top, and Caleffi DISCAL label.

Caleffi 551028A DISCAL Air Separators: Brass, 1" Sweat

SKU #: CALE551028A   |   MPN #: 551028A
$147.22
$147.22 $0.00
MSRP: $210

Available in stock

Caleffi Z55PL zone valve with gray and black actuator head mounted on brass body with three ports.

Caleffi Z55PL Zone Valve 3/4 Inch Press

SKU #: CALEZ55PL   |   MPN #: Z55PL
$236.70
$236.70 $0.00
MSRP: $311

Available in stock

Silver and gold solar safety relief valve with yellow cap and threaded pipe connections.

Caleffi 253044 Solar Safety Relief Valve 4 Bar 60 PSI

SKU #: CALE253044   |   MPN #: 253044
$63.84
$63.84 $0.00
MSRP: $74.60

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

Caleffi brass balancing valve with 1/2 inch NPT connections and directional flow arrow marking.

Caleffi 130400A Balancing 1/2 Inch NPT Brass

SKU #: CALE130400A   |   MPN #: 130400A
$137.71
$137.71 $0.00
MSRP: $168

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

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

Caleffi Z300637 Z-One 3-Way valve body, 1", Sweat, 7.5 Cv, 20 PSI P

SKU #: CALEZ300637   |   MPN #: Z300637
$114.28
$114.28 $0.00
MSRP: $145

Available in stock

Brass pressure relief valve with black and white cap, shown with two solder-on copper fittings.

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

SKU #: CALE535950HA   |   MPN #: 535950HA
$119.48
$119.48 $0.00
MSRP: $147

Available in stock

Brass anti-scald mixing valve with compression fittings and assorted connector pieces.

Caleffi 521201A SinkMixer anti-scald valve 3/8" compression

SKU #: CALE521201A   |   MPN #: 521201A
$104.69
$104.69 $0.00
MSRP: $133

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

Brass 3-way valve body with 1/2" NPT connections and manual actuator stem.

Caleffi Z300411 Z-One 3-Way valve body, 1/2", NPT, 1.0 Cv, 75 PSI P

SKU #: CALEZ300411   |   MPN #: Z300411
$69.82
$69.82 $0.00
MSRP: $83.10

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

Brass 3-way valve body with 1/2" NPT connections and manual actuator stem.

Caleffi Z300412 Z-One 3-Way valve body, 1/2", NPT, 2.5 Cv, 50 PSI P

SKU #: CALEZ300412   |   MPN #: Z300412
$69.78
$69.78 $0.00
MSRP: $83.10

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

Brass 3-way valve body with 1/2" NPT connections and metal stem extending upward.

Caleffi Z300413 Z-One 3-Way valve body, 1/2", NPT, 3.5 Cv, 30 PSI P

SKU #: CALEZ300413   |   MPN #: Z300413
$69.78
$69.78 $0.00
MSRP: $83.10

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

Caleffi Z-One 3-way valve body with 1/2" sweat connections and green branding.

Caleffi Z300432 Z-One 3-Way valve body, 1/2", Sweat, 2.5 Cv, 50 PSI P

SKU #: CALEZ300432   |   MPN #: Z300432
$65.45
$65.45 $0.00
MSRP: $78.10

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

Brass 3-way valve body with gray and black actuator head and threaded ports for 1/2" sweat connections.

Caleffi Z300431 Z-One 3-Way valve body, 1/2", Sweat, 1.0 Cv, 75 PSI P

SKU #: CALEZ300431   |   MPN #: Z300431
$65.54
$65.54 $0.00
MSRP: $78.10

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

Brass 3-way valve body with 3/4" NPT connections and manual stem control on top.

Caleffi Z300512 Z-One 3-Way valve body, 3/4", NPT, 2.5 Cv, 50 PSI P

SKU #: CALEZ300512   |   MPN #: Z300512
$86.50
$86.50 $0.00
MSRP: $104

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

Brass 3-way valve body with 3/4" sweat connections and control stem on top.

Caleffi Z300532 Z-One 3-Way valve body, 3/4", Sweat, 2.5 Cv, 50 PSI P

SKU #: CALEZ300532   |   MPN #: Z300532
$78.36
$78.36 $0.00
MSRP: $96.40

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

Brass 3-way valve body with 3/4" sweat connections, manual actuator stem, and bottom port connection.

Caleffi Z300533 Z-One 3-Way valve body, 3/4", Sweat, 3.5 Cv, 30 PSI P

SKU #: CALEZ300533   |   MPN #: Z300533
$78.36
$78.36 $0.00
MSRP: $96.40

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

Brass 3-way valve body with NPT connections and manual stem on top.

Caleffi Z300515 Z-One 3-Way valve body, 3/4", NPT, 5.0 Cv, 25 PSI P

SKU #: CALEZ300515   |   MPN #: Z300515
$86.38
$86.38 $0.00
MSRP: $104

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

Caleffi Z-One 3-way valve body with 3/4" sweat connections and green branding label.

Caleffi Z300535 Z-One 3-Way valve body, 3/4", Sweat, 5.0 Cv, 25 PSI P

SKU #: CALEZ300535   |   MPN #: Z300535
$78.31
$78.31 $0.00
MSRP: $96.40

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

Brass 3-way valve body with 3/4" NPT connections, side ports, and metal actuator stem on top.

Caleffi Z300517 Z-One 3-Way valve body, 3/4", NPT, 7.5 Cv, 20 PSI P

SKU #: CALEZ300517   |   MPN #: Z300517
$86.35
$86.35 $0.00
MSRP: $104

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

Brass 3-way valve body with sweat connections and manual stem control on top.

Caleffi Z300635 Z-One 3-Way valve body, 1", Sweat, 5.0 Cv, 25 PSI P

SKU #: CALEZ300635   |   MPN #: Z300635
$114.37
$114.37 $0.00
MSRP: $145

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.
Free Shipping on Everything!
30 Days Free Returns
Secure Payment
Expert Customer Support