IM 817-7 26 www.DaikinApplied.com
2-Way Modulating Valve (Steam) - 1/2"
Two-way modulating control valves for MicroTech are
designed to regulate the ow of steam. They consist of a
nickel plated brass body and stainless steel ball valve and
stem, with a spring return, proportional actuator. The optional
valve accessory is shipped separate from the unit ventilator
for eld installation to prevent shipping damage and to
provide exibility in making the eld piping connection.
Figure 73: 2-Way Modulating Valve (Steam) Dimensions
FE
D
B
A
AB
A
C
Table 16: 2-Way Actuator Specifications (Steam)
Power Supply 24 VAC ± 20%, 50/60 Hz, 24 VDC ± 10%
Electrical Connection
3ft [1m], 18 GA plenum cable with 1/2"
conduit connector"
Overload Protection electronic throughout 0° to 95° rotation
Operating Range Y
2 to 10 VDC, 4 to 20 mA w/ ZG-R01 (500
Ω, 1/4 W resistor)
Input Impedance
100 k Ω for 2 to 10 VDC (0.1 mA), 500 Ω
for 4 to 20 mA
Feedback Output U 2 to 10 VDC, 0.5 mA max
Angle of Rotation Max. 95°, 90°
Position Indication
visual indicator, 0° to 95° (0° is full spring
return position)
Running Time (Motor) 95 sec
Running Time (Fail-Safe) <25 sec
Ambient Humidity max. 95% RH non-condensing
Ambient Temperature Range -22°F to 122°F [-30°C to 50°C]
Storage Temperature Range -40°F to 176°F [-40°C to 80°C]
Table 17: Valve Body Specifications (Steam)
Service
high temperature hot water/low pressure
steam, up to 60% glycol
Flow Characteristic A-port equal percentage
Controllable Flow Range 75°
Body Pressure Rating [psi] 600
Max Inlet Pressure (Steam) 15 psi
Media Temperature Range
(Water)
60°F to 266°F [16°C to 130°C]
Media Temperature Range
(Steam)
250°F [120°C]
Maximum Differential
Pressure (Steam)
15 psi
Max Differential Pressure
(Water)
60 psi partially open ball, 116 psi full open
Close-Off Pressure 200 psi
Table 18: 2-Way Modulating Steam Valve 1/2″ – Dimensions
Valve Part No. Cv
Connection Size
(inches)
A B C D E F
B215HT073 0.73
1/2" 7.32" (186mm) 3.33" (85mm) 5.8" (147mm) 5.3" (135mm) 1.52" (39mm) 1.52" (38.5mm)B215HT186 1.86
B215HT455 4.55
Table 19: 2-Way Modulating Steam Valve 1/2" – Pressure Drop
Pressure Drop Across the Valve
2-Way CCV Part
No.
Cv
Maximum
Rating
Connection
Size
2 PSI 3 PSI 4 PSI 5 PSI 10 PSI 15 PSI
B215HT073 0.73
1/2"
10.99 13.71 16.11 18.33 28.03 36.74
B215HT186 1.86 22.34 34.93 41.06 46.70 71.42 93.60
B215HT455 4.55 54.65 85.44 100.43 114.24 174.72 228.97
To Next Page
Loading...
