Technical Data
280969
Service
chilled, hot water, up to 60% glycol
Flow Characteristic
equal percentage
Controllable Flow Range
75°
Size [mm]
0.5” [15]
End Fitting
NPT female ends
Body
forged brass
Ball
chrome plated brass
Stem
brass
Seat
Teflon® PTFE
Seat O-ring
EPDM (lubricated)
Diaphragm
EPDM
Body Pressure Rating [psi]
360
Media Temperature Range
(Water)
36°F to 212°F [2°C to 100°C]
Maximum Allowable Operating
Temperature
212°F [100°C] *
Media Temperature Limit
250°F [121°C] *
Max Differential Pressure (Water) 40 psi
Close-Off Pressure
75 psi
Cv
5.9
Weight
0.2 lb [0.1 kg]
Leakage
0%
Servicing
maintenance free
* If temperature exceeds 212°F operating range due to a boiler control failure the valve will safely contain
the hot water but manufacturers product warranty becomes invalid. Valve and actuator replacement is at
the expense of others.
Application
The QCV zone valves are suited for large commercial buildings where higher
close-off and the ability to change flow is desired. Common applications include
unit ventilators, fan coil units, VAV reheat coils, fin tube casing, radiant panels
and duct coils. The valve fits in space restricted areas and can be assembled
without the use of tools.
Suitable Actuators
Non-Spring
Electronic Fail-Safe
Z2050Q-J
CQ
CQK
Dimensions (Inches [mm])
E
F
D
C
B
A
A
B
C
D
E
F
4.5” [114] 2.05” [52] 3.27” [83] 2.71” [69]
0.94”
[23.88]
0.94” [24]
Z2050Q-J, 1/2”, ZoneTight Valve
800-543-9038 USA
866-805-7089 CANADA
203-791-8396 LATIN AMERICA / CARIBBEAN
Date created, 02/21/2017 - Subject to change. © Belimo Air
controls (USA), Inc.
