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The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc. www.johnsoncontrols.com
R-158
V47 Series Temperature Actuated Modulating Valve (Continued)
Valves and Valve Accessories
Technical Specifications
V47 Series Temperature Actuated Modulating Valves
Maximum Bulb Temperature 20F° (-6.7 C°) above temperature range
Maximum Water Temperature 170°F (77°C)
Maximum Supply Water Pressure 150 psig (1,034 kPa)
Capillary Nylon Armor
1
1. For capillary length, refer to the selection chart on the previous page.
Temperature Bulb Style 4
2
(pictured)
2. V47AA-26, V47AB-2, V47AB-27 — Temperature Bulb Style 1 (no 1/2 in. NPT external fitting)
(1/2 in. NPT closed tank immersion)
Metric Conversion
°F °C
20 to 65 -6 to 18
40 to 85 4 to 29
75 to 115 24 to 46
75 to 135 24 to 57
115 to 160 46 to 71
115 to 180 46 to 82
160 to 205 71 to 96
160 to 230 71 to 110
V47 Valve Sizing Information
To Select Water Valve Size, see the flow chart for
selection of water valves. Carefully follow the steps
as outlined below.
1 Determine the maximum water flow required.
Draw a horizontal line through this flow across the
upper half of the flow chart.
2 Use the following method to determine the
temperature rise above the opening point.
a Valve closing point is the highest temperature
at which it is desired to have no flow through the
valve.
b Valve opening point is about 5F° above the
closing point.
c Determine the temperature the valve is to
maintain, this is the operating temperature.
d Subtract the opening temperature from the
operating temperature. This is the temperature
rise above the opening point.
3 Determine the available system pressure for use
with the valve by the following appropriate
method:
Open System:
Available System Pressure = Inlet Pressure -
condenser pressure drop - friction losses in piping.
Closed System:
Available System Pressure = Inlet Pressure -
static head - condenser pressure drop-friction
losses in piping.
The available system pressure is represented by
the curve in the lower half of the flow chart.
4 In the lower half of the flow curve, draw a
horizontal line from the temperature above the
opening point (Step 2d) to the available system
pressure (Step 3). If the point falls between two
pressure drop curves, use the curve to the left
(this gives an automatic factor of safety).
5 From this point, draw a vertical line until it
intersects the flow line from Step 1.
6 If the intersection falls on a valve size curve, this is
the valve size.
7 If the intersection falls between two curves, use
the curve to the left for the required valve size.
2
3
4
6
5
7
10
8
9
20
30
40
60
50
70
100
90
80
200
300
1136
757
379
227
349
303
265
189
151
114
76
38
34
30
26
23
19
15
11
7
3.8
-18
-14
-11
-8
-4
-1
2
36
30
24
18
12
6
0
Temperature
Rise
Above
Opening Point
(C)
o
Temperature
Rise
Above
Opening Point
(
o
F)
Water Flow
L/Min.
Water Flow
Gal. / Min.
2
(14)
5
(34)
10
(69)
20
(138)
30
(207)
40
(276)
50
(345)
60
(414)
3/8
1/2
3/4
1
1-1/4
1-1/2
2
2-1/2
v47_flowchart.eps
Flow Chart, V47 Valve
Accessories (Companion Flanges and Gaskets)
Note: Flanges have NPT (National Pipe Thread).
Product Code Number Water Valve
Size (in.)
Flange Gasket
(One Gasket per Package)
Companion Flange Kit
(See Diagram)
246-423 KIT14A-612 1-1/2 in.
246-424 KIT14A-613 2 in.
246-425 KIT14A-614 2-1/2 in.
Companion Flange Kit
Ring
Gasket (Two)
Cast Iron
Flange (Two)
Hex
Nut (Eight)
Machine
Bolt (Eight)