Zone Valves

by Sparco


PlumbingSupply.com® is your source for Sparco brand zone valves. Click here for their zone valve specifications, and here for repair parts for their valves. We also offer Sparco brand air eliminators and purge valves.

Sparco PowerTrack

Low cost, fast-acting, compact motorized zone valve.

Sparco PowerTrack is the first linear zone valve with a built-in balancing plug that permits pre-balancing for each zone.

Sweat Bronze Zone Valve
  • Rack and pinion linear design, no linkages to break.
  • Fast acting, 10-12 seconds to open, 4 seconds to close.
  • Low power consumption, 8 valves 40 VA transformer.
  • External valve position indicator.
  • Quiet operation, no water hammer.
  • Built-in tamper resistant balancing valve for pre-balancing.
  • High torque, constant speed synchronous motor.
  • Cooler running, longer life motor with heavy duty gearbox.
  • Operator can be replaced without draining system.
  • Manual opening feature.
  • Replaceable valve cartridge.
  • Large adjustable flow, 1" Cv 7.0, 3/4" Cv 5.8.
  • Motor CSA recognized.
  • 4 wire operator with auxiliary switch.
  • 2 wire without switch, 12" leads.
  • Compatible with most programmable thermostats.
  • Bronze casting; brass/stainless trim.
  • 3 year limited warranty.
  • Patent Nos. 5,529,282; D369,650; 2,052,382
Model Description Price & Quantity
V8043A1227 Replaces MZV524-T
1/2" NPT - brass
$158.05
MZV524E-T 1/2" NPT - brass Discontinued
MZV525-T 3/4" NPT - brass - no auxilliary switch  N/A 
V8043E1145 Replaces MZV525E-T
3/4" NPT - brass - 2-way normally closed
Includes normally open spst auxiliary switch
$168.38
MZV526-T 1" NPT - bronze Discontinued
Use V8043E1137
V8043E1137 Replaces MZV526E-T
1" NPT - brass - 2 way normally closed, 24 volt
Includes normally open spst auxiliary switch
$193.80
V8043A1029 Replaces MZV525
3/4" Sweat - brass
$157.74
V8043E1012 Replaces MZV525E
3/4" Sweat - brass - 2 way, normally closed, 24 volt
Includes normally open spst auxiliary switch
$168.11
V8043A1037 Replaces MZV526
1" Sweat - brass - 2 way normally closed, 24 volt
$191.47
V8043E1079 Replaces MZV526E
1" Sweat - brass - 2 way normally closed, 24 violt
Includes normally open spst auxiliary switch
$193.53
VT2517G13A020 Replaces MZV5271
1 1/4" Sweat - brass - 2 way normally closed, 24 volt
$189.71
VT2517G13A02A Replaces MZV527E
1 1/4" Sweat - brass - 2 way normally closed - 24 volt - with End Switch
$194.76

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to parts for Honeywell/Sparco PowerTrack zone valves


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Frequently Asked Questions

Q. "Why does my valve chatter when closing?"
A.It may have been installed backwards. Check for proper flow direction.

Q. "My valve does not open when the thermostat closes?"
A.Check voltage between yellow and orange wires; voltage should be between 22 and 26 volts.


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