Zone Valves

Our high-quality zone valves are designed to optimize the flow of hot water in hydronic heating and cooling systems, delivering efficient, targeted climate control for any residential or commercial space. Zone valves are crucial components for managing the flow of heated or cooled water throughout a home or building, directing warmth where it’s needed and reducing energy waste. Powered electrically for dependable operation, our zone valves are available in versatile two-way and three-way configurations, giving you the flexibility to meet the specific demands of any system.

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1/2″ SAE 3-Way Mixing Valve, 3/8 lb Spring, 1.5 Cv

Siemens

SKU: 656-0011
$211.71
MSRP: $243.47
You save 15%
Siemens Building Technology 656-0011 1/2" SAE 3-Way Mixing Valve 1.5Cv quantity
4″ 125/250 PSI 3-Way Bronze Zone Valve Repair Kit

Siemens

SKU: 599-10127
$777.60
MSRP: $894.24
You save 15%
Siemens Building Technology 599-10127 4" 125/250 3-Way Bronze Valve Repair Kit quantity
Globe Valve, 2-Way Normally Open, 1/2″ NPT, 2.5 Cv, Forged Brass Body

Siemens

SKU: 599-02039
$73.04
MSRP: $84.00
You save 15%
Siemens Building Technology 599-02039 Globe Valve, 2-Way Normally Open, 1/2" NPT x Union Male, 2.5 Cv, Forged Brass quantity
2″ Powermite Actuator for Precise Zone Valve Control

Siemens

SKU: 599-01088
$81.73
MSRP: $93.99
You save 15%
Siemens 599-01088 2" Powermite Actuator for Zone Valve Control quantity
3-Way Zone Valve Assembly, 1/2″ Sweat, 120VAC, 4.0 Cv, Linear Flow

Siemens

SKU: 599-00534
$40.21
MSRP: $46.24
You save 15%
Siemens Building Technology 599-00534 3-Way Zone Valve Assembly, 1/2" Sweat, 120VAC, 4.0 Cv, Brass quantity
3-Way 3/4″ Sweat Zone Valve Assembly, 120VAC, 4.1 Cv Linear Flow

Siemens

SKU: 599-00532
$47.59
MSRP: $54.73
You save 15%
Siemens Building Technology 599-00532 3-Way 3/4" Sweat Zone Valve Assembly, 120VAC, 4.1 Cv quantity
3-Way Zone Valve Assembly, 1/2″ Sweat, 120VAC, 2.5 Cv Linear Flow

Siemens

SKU: 599-00531
$40.21
MSRP: $46.24
You save 15%
Siemens 599-00531 3-Way Zone Valve Assembly, 1/2" Sweat, 120VAC, 2.5 Cv quantity
3-Way 1/2″ Sweat Valve Assembly, 120VAC, 1.0 Cv, Linear Flow, Brass

Siemens

SKU: 599-00530
$40.21
MSRP: $46.24
You save 15%
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2-Way 1/2″ Sweat Zone Valve Assembly, 120VAC, 4.0 Cv, Brass Body

Siemens

SKU: 599-00514
$33.30
MSRP: $38.30
You save 15%
Siemens 599-00514 2-Way 1/2" Sweat Zone Valve Assembly, 120VAC, 4.0 Cv, Brass quantity
2-Way NC Zone Valve Assembly, 3/4″ Sweat, 120VAC, 4.1 Cv

Siemens

SKU: 599-00512
$38.39
MSRP: $44.15
You save 15%
Siemens 599-00512 2-Way NC Zone Valve Assembly, 3/4" Sweat, 120VAC, 4.1 Cv quantity
Zone Valve Assembly, 2-Way, 1/2″ Sweat, 120VAC, 2.5 Cv Linear Flow

Siemens

SKU: 599-00511
$33.30
MSRP: $38.30
You save 15%
Siemens 599-00511 Zone Valve Assembly, 2-Way, 1/2" Sweat, 120VAC, 2.5 Cv quantity
2-Way Zone Valve Assembly, 1/2″ Sweat, 120VAC, 1.0 Cv Linear Flow

Siemens

SKU: 599-00510
$34.58
MSRP: $39.77
You save 15%
Siemens 599-00510 2-Way Zone Valve Assembly, 1/2" Sweat, 120VAC, 1.0 Cv quantity
3-Way Zone Valve Assembly, 1/2″ NPT, 120VAC, 4.0 Cv, Brass Body

Siemens

SKU: 599-00234
$40.21
MSRP: $46.24
You save 15%
Siemens 599-00234 3-Way Zone Valve Assembly, 1/2" NPT, 120VAC, 4.0 Cv, Brass quantity
3-Way Zone Valve Assembly, 1″ NPT, 120VAC, 7.0 Cv Linear Flow

Siemens

SKU: 599-00233
$61.41
MSRP: $70.62
You save 15%
Siemens Building Technology 599-00233 3-Way Zone Valve Assembly, 1" NPT, 120VAC, 7.0 Cv quantity
3-Way Zone Valve Assembly, 3/4″ NPT, 120VAC, 4.1 Cv Linear Flow

Siemens

SKU: 599-00232
$47.59
MSRP: $54.73
You save 15%
Siemens Building Technology 599-00232 3-Way Zone Valve Assembly, 3/4" NPT, 120VAC, 4.1 Cv quantity
3-Way Zone Valve Assembly, 1/2″ NPT, 120VAC, 2.5 Cv, Brass Body

Siemens

SKU: 599-00231
$40.21
MSRP: $46.24
You save 15%
Siemens 599-00231 3-Way Zone Valve Assembly, 1/2" NPT, 120VAC, 2.5 Cv, Brass quantity
2-Way Zone Valve Assembly, NC, 1/2″ NPT, 120VAC, 1.0 Cv

Siemens

SKU: 599-00230
$40.21
MSRP: $46.24
You save 15%
Siemens 599-00230 2-Way Zone Valve Assembly, NC, 1/2" NPT, 120VAC, 1.0 Cv quantity
2-Way Normally Open Zone Valve Assembly, 1/2″ NPT, 120VAC, 4.0 Cv

Siemens

SKU: 599-00214
$33.30
MSRP: $38.30
You save 15%
Siemens 599-00214 2-Way N/O Zone Valve Assembly, 1/2" NPT, 120VAC, 4.0 Cv quantity
2-Way Normally Open Zone Valve, 1″ NPT, 24Vac, 7.0 Cv Linear Flow

Siemens

SKU: 599-00213
$49.50
MSRP: $56.93
You save 15%
Siemens 599-00213 2-Way Normally Open Zone Valve Assembly, 1" NPT, 24Vac, 7.0 Cv quantity
2-Way Normally Open Zone Valve, 3/4″ NPT, 24Vac, 4.1 Cv, Brass Body

Siemens

SKU: 599-00212
$38.39
MSRP: $44.15
You save 15%
Siemens 599-00212 2-Way Normally Open Zone Valve Assembly, 3/4" NPT, 24Vac, 4.1 Cv quantity
2-Way Normally Open Zone Valve, 1/2″ NPT, 24Vac, 2.5 Cv Linear Flow

Siemens

SKU: 599-00211
$33.30
MSRP: $38.30
You save 15%
Siemens 599-00211 2-Way Normally Open Zone Valve Assembly, 1/2" NPT, 24Vac, 2.5 Cv quantity
Zone Valve, 1/2″ NPT, 1.0 Cv, 2-Way Linear Flow, Brass Body

Siemens

SKU: 599-00210
$34.53
MSRP: $39.71
You save 15%
Siemens Building Technology 599-00210 Zone Valve, 1/2" NPT, 1.0 Cv, 2-Way Brass quantity
2-Way NC 2″ NPT 40 Cv Bronze Valve with 8″ Pneumatic Actuator

Siemens

SKU: 277-03188
$688.46
MSRP: $791.73
You save 15%
Siemens 277-03188 2-Way Normally Closed 2" NPT 40 Cv Pneumatic Valve Assembly quantity
2-Way N.O. 2″ NPT 40 Cv Bronze Valve w/ 8″ Pneumatic Actuator

Siemens

SKU: 277-03170
$688.46
MSRP: $791.73
You save 15%
Siemens 277-03170 2-Way N.O. 2" NPT 40 Cv Bronze Valve w/ 8" Pneumatic Actuator quantity
2-Way N/O 1-1/4″ NPT 16Cv Bronze Valve w/ 8″ Pneumatic Actuator

Siemens

SKU: 277-03168
$489.66
MSRP: $563.11
You save 15%
Siemens 277-03168 2-Way N/O 1-1/4" NPT 16Cv Bronze Valve w/ 8" Pneumatic Actuator quantity
2-Way NC 2″ NPT 40Cv Bronze Valve w/ Spring Return Modulating Actuator

Siemens

SKU: 274-03080
$1,577.90
MSRP: $1,814.59
You save 15%
Siemens 274-03080 2-Way NC 2" NPT 40Cv Bronze Valve w/ Spring Return Modulating Actuator quantity
2-Way NC Valve Assembly, 3/4″ NPT, 6.3 Cv, Pneumatic Actuator

Siemens

SKU: 270-03184
$283.78
MSRP: $326.35
You save 15%
Siemens Building Technology 270-03184 2-Way NC Valve Assembly, 3/4" NPT, 6.3 Cv, Pneumatic Actuator quantity
E.P. 24V 3-Way Valve for Building Automation Systems

Siemens

SKU: 265-1021
$75.59
MSRP: $86.93
You save 15%
Siemens Building Technology 265-1021 E.P. 24V 3-Way Valve quantity
3-Way Mixing Valve Assembly, 1/2″ NPT, 2.5 Cv, 24 VAC Actuator

Siemens

SKU: 259-02068
$178.39
MSRP: $205.15
You save 15%
Siemens 259-02068 3-Way Mixing Valve Assembly, 1/2" NPT, 2.5 Cv, 24 VAC quantity
2-Way Normally Open 1/2″ NPT 24Vac 1.0 Cv Valve Assembly

Siemens

SKU: 259-02051
$205.06
MSRP: $235.82
You save 15%
Siemens 259-02051 2-Way Normally Open 1/2" NPT 24Vac 1.0 Cv Valve Assembly quantity
3-Way Mixing Valve Assembly, 1/2″ NPT, 4.0 Cv, Pneumatic Actuator

Siemens

SKU: 258-02069
$160.08
MSRP: $184.09
You save 15%
Siemens 258-02069 3-Way Mixing Valve Assembly, 1/2" NPT, 4.0 Cv, Pneumatic quantity
2-Way N/O 1″ NPT 10 Cv Pneumatic Actuator Valve Assembly

Siemens

SKU: 257-02046
$205.84
MSRP: $236.72
You save 15%
Siemens 257-02046 2-Way N/O 1" NPT 10 Cv Pneumatic Actuator Valve Assembly quantity
2-Way N/O 3/4″ NPT Brass Valve Assembly w/ Pneumatic Actuator

Siemens

SKU: 257-02045
$172.59
MSRP: $198.48
You save 15%
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2-Way Normally Open 1/2″ Angle NPT Pneumatic Valve Assembly

Siemens

SKU: 257-02043
$158.44
MSRP: $182.21
You save 15%
Siemens 257-02043 2-Way NO 1/2" Angle NPT Pneumatic Valve Assembly quantity
2-Way N/O 1/2″ NPT Valve Assembly with Pneumatic Actuator

Siemens

SKU: 257-02042
$153.26
MSRP: $176.25
You save 15%
Siemens 257-02042 2-Way N/O 1/2" NPT Valve Assembly with Pneumatic Actuator quantity
2-Way N/O 1/2″ NPT 4.0 Cv Brass Pneumatic Valve Assembly

Siemens

SKU: 257-02041
$147.16
MSRP: $169.23
You save 15%
Siemens 257-02041 2-Way N/O 1/2" NPT 4.0 Cv Pneumatic Valve Assembly quantity
2-Way N/O 1/2″ Angle NPT Pneumatic Valve, 2.5 Cv, 3-8 PSI

Siemens

SKU: 257-02040
$158.44
MSRP: $182.21
You save 15%
Siemens 257-02040 2-Way N/O 1/2" Angle NPT Pneumatic Valve Assembly quantity
2-Way N/O 1/2″ NPT Valve Assembly, 2.5 Cv, 3-8 PSI Pneumatic Actuator

Siemens

SKU: 257-02039
$153.26
MSRP: $176.25
You save 15%
Siemens 257-02039 2-Way N/O 1/2" NPT Valve Assembly, 2.5 Cv, 3-8 PSI Pneumatic quantity
2-Way N/O 1/2″ NPT 2.5 Cv Pneumatic Valve Assembly

Siemens

SKU: 257-02038
$147.16
MSRP: $169.23
You save 15%
Siemens 257-02038 2-Way N/O 1/2" NPT 2.5 Cv Pneumatic Valve Assembly quantity
2-Way N/O 1/2″ NPT 1.6 Cv Pneumatic Valve Assembly

Siemens

SKU: 257-02036
$147.16
MSRP: $169.23
You save 15%
Siemens 257-02036 2-Way N/O 1/2" NPT 1.6 Cv Pneumatic Valve Assembly quantity
2-Way N/O 1/2″ NPT Valve Assembly, 1.0 Cv, 3-8 PSI Pneumatic

Siemens

SKU: 257-02035
$153.26
MSRP: $176.25
You save 15%
Siemens 257-02035 2-Way N/O 1/2" NPT Valve Assembly, 1.0 Cv, 3-8 PSI Pneumatic quantity
2-Way N/O 1/2″ NPT 1.0 Cv Pneumatic Valve Assembly

Siemens

SKU: 257-02034
$147.16
MSRP: $169.23
You save 15%
Siemens 257-02034 2-Way N/O 1/2" NPT 1.0 Cv Pneumatic Valve Assembly quantity
2-Way N/O 1/2″ NPT Valve Assembly with Pneumatic Actuator

Siemens

SKU: 257-02033
$153.26
MSRP: $176.25
You save 15%
Siemens 257-02033 2-Way N/O 1/2" NPT Valve Assembly w/ Pneumatic Actuator quantity
2-Way N/O 1/2″ NPT 0.63 Cv Pneumatic Valve Assembly

Siemens

SKU: 257-02032
$147.16
MSRP: $169.23
You save 15%
Siemens 257-02032 2-Way N/O 1/2" NPT 0.63 Cv Pneumatic Valve Assembly quantity
2-Way N/O 1/2″ NPT Valve Assembly with Pneumatic Actuator

Siemens

SKU: 257-02031
$153.26
MSRP: $176.25
You save 15%
Siemens 257-02031 2-Way N/O 1/2" NPT Valve Assembly w/ Pneumatic Actuator quantity
2-Way Normally Closed 3/4″ NPT Pneumatic Valve Assembly, 6.3 Cv

Siemens

SKU: 257-02013B
$172.59
MSRP: $198.48
You save 15%
Siemens 257-02013B 2-Way Normally Closed 3/4" NPT Pneumatic Valve Assembly quantity
2-Way NC Valve Assembly, 1/2″ NPT, 4.0 Cv, 3-8 PSI Pneumatic

Siemens

SKU: 257-02011B
$153.26
MSRP: $176.25
You save 15%
Siemens 257-02011B 2-Way NC Valve Assembly, 1/2" NPT, 4.0 Cv, 3-8 PSI quantity
2-Way NC Valve Assembly, 1/2″ NPT, 2.5 Cv, Pneumatic Actuator

Siemens

SKU: 257-02008B
$147.16
MSRP: $169.23
You save 15%
Siemens Building Technology 257-02008B 2-Way Normally Closed Valve Assembly, 1/2" NPT, 2.5 Cv, Pneumatic Actuator quantity