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Caleffi 676249A : TwisTop Zone Valve 1/2" Sweat 24V

Caleffi 676249A : TwisTop Zone Valve 1/2" Sweat 24V

Caleffi

MSRP: $221.00
Your Price:  $147.96
(You save $73.04 )
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SKU:
676249A
UPC:
8016615297614
Condition:
New
Availability:
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Connection1/2" Sweat
Flow Coefficient4.0 Cv
Electric Supply24 V AC/DC
Max Pressure150 psi
Warranty2-Year Limited

The Caleffi 676249A is a TwisTop thermo-electric zone valve with 1/2" Sweat connections, 24V.

Best for residential and light commercial zoning where silent operation matters.

Specifications transcribed from Caleffi technical brochure 01072 NA. Last verified August 2026.

Warranty

Caleffi 2-Year Limited Warranty. Caleffi North America warrants this product free from defects in material and workmanship for two years from the date of transfer of ownership - the point Caleffi hands the goods to the first carrier - subject to correct installation and use. Coverage runs to the purchaser identified as "Ship To" on Caleffi's order confirmation and is subject to the eligibility conditions, exclusions and remedies set out in Caleffi North America's published Limited Warranty and Terms and Conditions of Sale. This summary is provided for convenience and does not replace those documents.

Key Features

Silent Thermo-Electric Operation

A heated wax element opens the valve with no motor or gear train, so the valve is silent in occupied spaces.

Auxiliary End Switch

An auxiliary microswitch rated 5 A at 24 V confirms valve position for pump or boiler interlock.

Technical Specifications

Product TypeThermo-Electric Zone Valve
Connection Size1/2"
Connection TypeSweat
Flow Coefficient (Cv)4.0
Maximum operating pressure150 psi
Medium temperature range40 - 200 °F
Electric supply24 V AC/DC
Starting current<= 250 mA
Auxiliary microswitch contact rating (24 V)5 A
Maximum delta p20 psi
Materialbrass
SeriesTwisTop
Published weight (Caleffi "Wt.")1.4 lb

Documentation

PDF
PDF

Related Products

Frequently Asked Questions

What does Caleffi 676249A do?

It is a thermo-electric zone valve. A heated wax element opens and closes the valve on a thermostat signal, with no motor or gear train, so operation is silent.

What connection does Caleffi 676249A use?

It is supplied with 1/2" Sweat connections. Other sizes and connection styles in the range are listed under Related Products.

What supply voltage does Caleffi 676249A require?

Electric supply is 24 V AC/DC.

Caleffi 2-Year Limited Warranty. Caleffi North America warrants this product to be free from defects in material and workmanship for two years from the date of transfer of ownership (when the goods are handed to the first carrier), when installed and operated in accordance with published instructions. Coverage runs to the purchaser identified as "Ship To" on Caleffi's order confirmation and is subject to the eligibility conditions, exclusions and remedies set out in Caleffi North America's published Limited Warranty and Terms and Conditions of Sale. This summary is provided for convenience and does not replace those documents. ZOT Supply is an authorized Caleffi distributor.
Product Type:
Thermo-Electric Zone Valve
Product Family:
Thermo-electric Zone Valves
Series:
TwisTop
Connection Type:
Sweat
Connection Size:
1/2 inch
Flow Coefficient:
4.0 Cv
Electric Supply:
24 V AC/DC
Max Operating Pressure:
150 psi
Medium Temperature Range:
40 - 200 deg F
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