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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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1805 products

Brass pressure relief valve with copper press union inlet, female threaded outlet, and attached pressure gauge.

Caleffi 533651HA PressCal Compact PRV ASSE 1003, Single Union 3/4" press union in, FNPT out, gauge

SKU #: CALE533651HA   |   MPN #: 533651HA
$80.69
$80.69 $0.00
MSRP: $91.50

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

Brass 3-way mixing valve with black dial adjustment knob on top and temperature gauge on bottom showing scale from 30 to 210

Caleffi 521510A MixCal 3-way Mixing Valve 3/4" NPT w/ Temp Gauge

SKU #: CALE521510A   |   MPN #: 521510A
$233.72
$233.72 $0.00
MSRP: $304

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

Brass 3-way mixing valve with black temperature control dial, dual check valves with red and blue indicators, and attached te

Caleffi 521510AC MixCal 3-way Mixing Valve 3/4" NPT w/Check Valves & Temp Gauge

SKU #: CALE521510AC   |   MPN #: 521510AC
$257.29
$257.29 $0.00
MSRP: $337

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

Caleffi solar safety relief valve with yellow cap and metal body marked DN15, 1/2 inch connections.

Caleffi 253048 SOLAR SAFETY RELIEF VALVE 8 BAR 120 PSI

SKU #: CALE253048   |   MPN #: 253048
$63.84
$63.84 $0.00
MSRP: $74.60

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

Brass 3-way mixing valve with black adjustment knob, temperature gauge, and three sweat connections.

Caleffi 521519AC MixCal 3-way Mixing Valve 3/4" Sweat w/Check Valves & Temp Gauge

SKU #: CALE521519AC   |   MPN #: 521519AC
$250.15
$250.15 $0.00
MSRP: $327

Available in stock

Brass 3-way mixing valve with black adjustment knob on top and temperature gauge on lower side, PEX crimp connections.

Caleffi 521607AC MixCal 3-Way Mixing Valve 1" PEX crimp w/Check Valves

SKU #: CALE521607AC   |   MPN #: 521607AC
$250.15
$250.15 $0.00
MSRP: $329

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

Brass AutoFill valve with gray cap and attached pressure gauge with red needle on white dial.

Caleffi 535061A AutoFill 1" Union MNPT w/ Pressure Gauge

SKU #: CALE535061A   |   MPN #: 535061A
$155.29
$155.29 $0.00
MSRP: $196

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

Brass expansion tank with gray cap and attached pressure gauge showing scale from 0-3 bar.

Caleffi 535068A AutoFill 1" Union Pex Expansion w/ Pressure Gauge

SKU #: CALE535068A   |   MPN #: 535068A
$167.52
$167.52 $0.00
MSRP: $197

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

Brass pressure reducing valve with white and black regulator cap, attached round pressure gauge, and 1/2" NPT female connecti

Caleffi 535341HA PressCal PRV ASSE 1003, Female 1/2" NPT w/ Pressure Gauge

SKU #: CALE535341HA   |   MPN #: 535341HA
$127.16
$127.16 $0.00
MSRP: $161

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

Caleffi chrome radiator valve with white thermostatic head and straight 1/2" x 3/4" connections.

Caleffi 339452 Radiator Valve Thermo.Straight 1/2"x3/4"

SKU #: CALE339452   |   MPN #: 339452
$67.45
$67.45 $0.00
MSRP: $79.40

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

Brass balancing valve with 1-1/2 inch NPT connections, dial adjustment knob, and black actuator component.

Caleffi 132882A Balancing 1-1/2 Inch NPT Brass

SKU #: CALE132882A   |   MPN #: 132882A
$388.26
$388.26 $0.00
MSRP: $492

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

Brass thermostatic mixing valve with 1/2 inch NPT connections and integrated temperature gauge.

Caleffi 520410AC Thermostatic Mixing 1/2 Inch NPT Brass

SKU #: CALE520410AC   |   MPN #: 520410AC
$239.56
$239.56 $0.00
MSRP: $315

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

Brass thermostatic mixing valve with attached temperature gauge and control knob, 3/4 inch NPT connections.

Caleffi 520510AC Thermostatic Mixing 3/4 Inch NPT Brass

SKU #: CALE520510AC   |   MPN #: 520510AC
$257.29
$257.29 $0.00
MSRP: $337

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

Brass balancing valve with black flowmeter dial and union connectors for 1/2" pex tubing.

Caleffi 132432AFC QuickSetter+ Balancing Valve w/ Flowmeter Union, 1/2" Pex Expansion .5 - 1.75 GPM Low Lead

SKU #: CALE132432AFC   |   MPN #: 132432AFC
$251.23
$251.23 $0.00
MSRP: $314

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

Brass mixing valve with black temperature control knob marked MIN to MAX and threaded ports on sides and bottom.

Caleffi 521101A Mixing Valve without fitting

SKU #: CALE521101A   |   MPN #: 521101A
$141.88
$141.88 $0.00
MSRP: $182

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

Brass and gray thermostatic mixing valve with three NPT ports and adjustable cap on top.

Caleffi 521342A 3-Way ANTI-SCALD Mixing Valve 1/2" NPT w/Check Valves

SKU #: CALE521342A   |   MPN #: 521342A
$128.15
$128.15 $0.00
MSRP: $161

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

Brass 3-way mixing valve with gray cap and PEX crimp connections on horizontal and vertical ports.

Caleffi 521347A 3-Way ANTI-SCALD Mixing Valve 1/2" PEX crimp w/Check Valves

SKU #: CALE521347A   |   MPN #: 521347A
$122.45
$122.45 $0.00
MSRP: $161

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

Brass flow control valve with NPT threaded connections and blue FlowCal Caleffi band.

Caleffi 127341AF 1G3 FlowCal PIBV Low Lead 1/2" NPT 1.3 GPM

SKU #: CALE127341AF1G3   |   MPN #: 127341AF 1G3
$112.53
$112.53 $0.00
MSRP: $136

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

Brass flow control valve with blue FlowCal band and threaded NPT connections on both ends.

Caleffi 127341AF 1G5 FlowCal PIBV Low Lead 1/2" NPT 1.5 GPM

SKU #: CALE127341AF1G5   |   MPN #: 127341AF 1G5
$109.71
$109.71 $0.00
MSRP: $136

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

Brass FlowCal pressure independent balancing valve with blue band label and PEX crimp connections on top and bottom.

Caleffi 127344AF 1G3 FlowCal PIBV Low Lead 1/2" PEX crimp 1.3 GPM

SKU #: CALE127344AF1G3   |   MPN #: 127344AF 1G3
$103.70
$103.70 $0.00
MSRP: $128

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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