Dwyer Instruments SERIES ZV2 Catalog Page
Series
A
B
C
TURN KEY
TURN KEY
ZV2
Two-Way Detachable Zone Valves
Floating or Modulating
A [in (mm)]
Size
4.53 (115)
1/2˝
4.53 (115)
3/4˝
4.61 (117)
1˝
5.16 (131)
1-1/4˝
ZV2 Series Zone Valves are ideal for flow control in hot and cold water HVAC
systems. Zone valves are typically used in conjunction with a thermostat to control
room temperature. The ZV2 is electrically driven to open and or close via a
bidirectional motor. Units are available in 1/2˝, 3/4˝, 1˝, and 1-1/4˝ sizes with 24 or
120 VAC power supply. Easy to install, these units are direct replacements for
competitor units. Manual override lever is easily accessible externally. Consult
factory for 220 VAC power supply, optional auxiliary switches, and BSP or sweat
connections.
ZV2 models come in floating or modulating input types. Floating units are controlled
directly from the thermostat and modulation units accept either a 4 to 20 mA or 0 to
10 VDC input. Modulating models include a motor time out feature that automatically
turns off the motor after the full stroke of the valve to increase motor life. Featured
in the ZV2 is a detachable actuator that is easily removable by a turn key allowing
the valve body to be installed without the actuator. Actuator housing is constructed
of fire resistant plastic.
Cv
Size
Model
ZV20212
ZV20214
ZV20224
ZV20312
ZV20314
ZV20324
3.8
3.8
3.8
3.8
3.8
3.8
Supply Voltage
1/2˝
120 VAC
1/2˝
24 VAC
1/2˝
24 VAC
3/4˝
120 VAC
3/4˝
24 VAC
3/4˝
24 VAC
Input
Floating
Floating
Modulating
Floating
Floating
Modulating
Model
ZV20412
ZV20414
ZV20424
ZV20512
ZV20514
ZV20524
Cv
8.0
8.0
8.0
11.7
11.7
11.7
Size
1˝
1˝
1˝
1-1/4˝
1-1/4˝
1-1/4˝
SPECIFICATIONS
Service: Compatible fluids.
Body: 2-way, NC.
Line Size: 1/2˝ to 1-1/4˝.
End Connections: Female NPT
(optional BSP, sweat connections).
Pressure Limits: Max: 300 psi (20.7
bar); Close-off: 43 psi (2.96 bar).
Temperature Limits: Ambient: 32 to
104°F (0 to 40°C); Process: 37 to 201°F
(3 to 94°C).
Wetted Materials: Brass, SS, NBR.
Flow Characteristic: Quick opening.
Supply Voltage
120 VAC
24 VAC
24 VAC
120 VAC
24 VAC
24 VAC
USA: California Proposition 65
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Input
Floating
Floating
Modulating
Floating
Floating
Modulating
Input: Floating: 3-wire; Modulating: 0 to
10 VDC or 4 to 20 mA (24 VAC power
only).
Power Requirements: 120 VAC or 24
VAC, ±10%, 50/60 Hz (optional 220
VAC).
Power Consumption: Floating: 2.5 VA;
Modulating: 3.5 VA.
Electrical Connection: 18 AWG
jacketed, 9˝ (228 mm) long.
Cycle Time: Opening time: 50 to 65 s.
Enclosure Rating: General purpose.
Housing Material: PVC and
polycarbonate.
C [in (mm)]
2.64 (67)
2.64 (67)
2.64 (67)
2.64 (67)
B [in (mm)]
3.15 (80)
3.50 (89)
3.66 (93)
4.13 (105)
VALVES
Loading...