Honeywell MZV Series Catalog Page
Motorized Zone Valves
MZV Series Motorized Zone valves
Honeywell MZV Series is the first linear zone valve with a built-in balancing plug that permits pre-balancing for each zone.
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• Rack and pinion linear design. |
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• Fast acting, 15 seconds to open, 5 seconds to close. |
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• Two piece rack design to extend service life. |
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• Low power consumption, 8 valves, 40 VA transformer. |
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• External valve position indicator. |
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• Quiet operation, no water hammer. |
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• Built-in tamper resistant balancing valve for pre-balancing. |
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• High torque, constant speed synchronous motor. |
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• Cooler running, longer life motor. |
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• Operator can be replaced without draining system. |
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Manual opening feature. |
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Replaceable valve cartridge. |
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• Large adjustable flow, 1/2 in. 3/4 in. Cv 5.8; 1 in. 7.0 Cv; 1-1/4 in. Cv |
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7.0. |
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Motor CSA recognized. |
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• 4 wire operator with auxiliary switch. |
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• 2 wire without switch, 24 in. leads. |
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• Compat ble with programmable thermostats. |
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• Bronze casting; brass/stainless trim. |
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• USA Patent Nos. 5,529,282; D369,650; 5,941,500; 6,032,924. |
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• UK Patent No. 2,052,382. 24 VAC, 60 Hz, 0.25 ampere. |
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• 30 mm collar (valve/actuator interface) |
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Dimensions in inches (millimeters) |
Patented long life rack and pinion design with built-in balancing |
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valve |
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1 IN. 
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C |
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SIZE |
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525 |
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3/4 |
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B |
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A |
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D |
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E |
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MZV |
VALVE |
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DIMENSIONS IN INCHES (MM) |
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SERIES |
SIZE |
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A |
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B |
C |
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D |
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E |
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524 |
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1/2 IN. |
3-5/16 (84) |
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1 (25) |
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4-13/16 (122) |
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11/16 (17) |
1-5/8 (41) |
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525 |
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3/4 IN. |
3-5/16 (84) |
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13/16 (21) |
4-13/16 (122) |
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11/16 (17) |
1-5/8 (41) |
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526 |
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1 IN. |
3-13/16 (97) |
1 (25) |
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4-13/16 (122) |
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13/16 (21) |
1-5/8 (41) |
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527 |
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1-1/4 IN. |
3-13/16 (97) |
1 (25) |
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4-13/16 (122) |
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13/16 (21) |
1-5/8 (41) |
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M23259B |
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M18311
Application: Residential or Commercial Zoning for hot water heating or chilled water air conditioning systems, fan coil units or indirect water heater service.
Body Pattern: Two-way Voltage: 24 Vac Frequency: 60 Hz
Maximum Ambient Temperature: 125 F (52 C)
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Maximum Close- |
Maximum Water |
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Capacity |
Pipe Size |
Connection |
Auxiliary End |
off Pressure |
Pressure |
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Product Number |
(Cv) |
DN |
inch |
Type |
Switch |
(psi) |
(kPa) |
(psi) |
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(kPa) |
Voltage |
Frequency |
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MZV524-T/U |
5.8 Cv |
DN15 |
1/2 in. |
NPT |
— |
20 psi |
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125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV524E-T/U |
5.8 Cv |
DN15 |
1/2 in. |
NPT |
SPST |
20 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV525/U |
5.8 Cv |
DN20 |
3/4 in. |
Sweat |
— |
20 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV525-T/U |
5.8 Cv |
DN20 |
3/4 in. |
NPT |
— |
20 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV525E/U |
5.8 Cv |
DN20 |
3/4 in. |
Sweat |
SPST |
20 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV525E-T/U |
5.8 Cv |
DN20 |
3/4 in. |
NPT |
SPST |
20 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV526/U |
7.0 Cv |
DN25 |
1 in. |
Sweat |
— |
17.5 psi |
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125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV526-T/U |
7.0 Cv |
DN25 |
1 in. |
NPT |
— |
17.5 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV526E/U |
7.0 Cv |
DN25 |
1 in. |
Sweat |
SPST |
17.5 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV526E-T/U |
7.0 Cv |
DN25 |
1 in. |
NPT |
SPST |
17.5 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV527/U |
7.0 Cv |
DN32 |
1 1/4 in. |
Sweat |
— |
17.5 psi |
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125 psi |
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862 kPa |
24 Vac |
60 Hz |
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MZV527E/U |
7.0 Cv |
DN32 |
1 1/4 in. |
Sweat |
SPST |
17.5 psi |
— |
125 psi |
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862 kPa |
24 Vac |
60 Hz |
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214 |
customer.honeywell.com |
70-6910 |
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