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Motorized Zone Valve w/aux switch


Motorized Zone Valve w/aux switch

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  • Product Info
  • Literature


Honeywell MZV Series is the first linear zone valve with a built-in balancing plug that permits pre-balancing for each zone.


  • Rack and pinion linear design.
  • Fast acting, 15 seconds to open, 5 seconds to close.
  • Two piece rack design to extend service life.
  • 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.
  • Operator can be replaced without draining system.
  • Manual opening feature.
  • Replaceable valve cartridge.
  • Large adjustable flow, 1/2 in. 3/4 in. Cv 5.8; 1 in. 7.0 Cv; 1-1/4 in. Cv 7.0.
  • Motor CSA recognized.
  • 4 wire operator with auxiliary switch.
  • 2 wire without switch, 24 in. leads.
  • Compatible with programmable thermostats.
  • Bronze casting; brass/stainless trim.
  • USA Patent Nos. 5,529,282; D369,650; 5,941,500; 6,032,924.
  • UK Patent No. 2,052,382. 24 VAC, 60 Hz, 0.25 ampere.
  • 30 mm collar (valve/actuator interface)

Product Specifications

Residential or Commercial Zoning for hot water heating or chilled water air conditioning systems, fan coil units or indirect water heater service.
60 Hz
Operating Humidity Range (% RH)
5 to 95% relative humidity, non-condensing.
24 Vac
Ambient Temperature Range (F)
125 F Maximum
Ambient Temperature Range (C)
52 C Maximum
Pressure Range (psi)
Maximum Water--125 psi
Pressure Range (kPa)
Maximum Water--862 kPa
Connection Type
Body Pattern
Pipe Size (inch)
3/4 in.
Pipe Size (DN)
Maximum Differential Pressure Ratings (Close-off) (psi)
20 psi
Capacity (Cv)
5.8 Cv
Valve Type
Zone Valve
Auxiliary End Switch