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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.

Zone Valves
  • 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

to specifications for Sparco PowerTrack linear zone valve

to parts for Sparco PowerTrack zone valve

Model Description Price & Quantity
MZV524-T 1/2" NPT - bronze $146.58
MZV524E-T 1/2" NPT - bronze $152.79
MZV525-T 3/4" NPT - bronze $146.00
MZV525E-T 3/4" NPT - bronze $155.56
MZV526-T 1" NPT - bronze $178.80
MZV526E-T 1" NPT - bronze $179.39
MZV525 3/4" sweat - bronze $146.16
MZV525E 3/4" sweat - bronze $155.64
MZV526 1" sweat - bronze $177.12
MZV526E 1" sweat - bronze $179.28
MZV527* 1 1/4" sweat - bronze $199.39
MZV527E* 1 1/4" sweat - bronze $207.95
* Ship with fittings (unassembled) that will adapt 1" to 1 1/4"

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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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