GD-24 Direct-Acting Pressure

GD-24 Direct-Acting Pressure
GD-24
For Non-Potable Water Service Only
An industrial-grade valve for non-potable water systems,
the GD-24 is lightweight, compact and economical. Comes
with screwed connections and will mount in any position.
Requires no external sensing lines. Bronze body and high
temperature diaphragm suitable for hot or cold process
water service. Valve, seat and diaphragm are renewable
in line. External adjusting screw with lock. Six sizes, 1/2"
through 2". ANSI Class IV shutoff.
H
Illegal for potable water service per SDWA section 1417
(As Amended).
For a fully detailed certified drawing, refer to CDY #1023.
H1
GD-24 Specifications
Application
Maximum
Pressure
psig (bar)
Reduced
Pressure Range
psig (bar)
Minimum
Differential
psig (bar)
Maximum
Temperature
°F (°C)
Hot or Cold
Water
20 - 230
(1.3 - 16)
7 - 80
(.48 - 5.5)
7 (.48)
175* (79)
Materials
Body
Main Valve
Cast Bronze ASTM 584
Valve Seat
Diaphragm
Stainless Steel AISI 304
NBR**
Pressure and
Temperature Controls
L
*With Viton® diaphragm maximum temperature is 210°F (99°C).
**Viton optional.
GD-24 Capacities—Water
gpm
Connection Size
in
1
1-1/4
8
11
9
13
12
15
15
20
21
28
26*
35
30
40*
34
45
37
49
40
53
42
57
∆P
DP (psig)
7
10
15
25
50
75
100
125
150
175
200
1/2
4
5
6
8*
11
13
15
17
18
20
21
3/4
5
6
8
10
14*
17
20
22
24
26
28
∆P
1-1/2
19
22
27
35
49
61*
70
78
86
93
99
2
26
32
39
50
71
87
100*
112
122
132
141
DP (bar)
0.5
0.7
1.0
1.7
3.4
5.2
6.9
8.6
10.3
12.0
13.8
15
15
18
22
30*
40
49
57
63
70
75
80
20
20
24
29
38
53*
66
76
85
93
100
107
I/min
Connection Size
mm
25
32
30
40
36
48
44
59
57
76
80
107
98*
131
114
151*
127
169
139
185
150
200
161
214
40
70
84
103
132
187
231*
265
296
325
351
375
50
100
120
147
189
268
328
378*
423
464
501
535
*At flows greater than this, velocities will exceed 10 ft/sec and pipe erosion could occur.
NOTE: Maximum pressure reduction ratio 10:1.
GD-24 Dimensions and Weights
Symbol
L
H1
H
Wt, lb (kg)
CV
in
1/2
3-1/4
1-3/4
7-3/4
4
mm
15
83
45
197
(1.8)
1.5
in
3/4
3-1/2
2
8-1/2
5-1/4
mm
20
89
51
216
(2.4)
2
Connection Size
mm
in
25
1-1/4
102
4-3/4
64
3-1/4
245
11-1/4
(3.3)
10-3/8
in
1
4
2-1/2
9-5/8
7-1/4
3
mm
32
121
83
286
(4.7)
4
in
1-1/2
6
3-1/2
13-1/2
18
mm
40
152
89
343
(8.2)
7
in
2
7-1/4
4-1/2
16
31-1/2
mm
50
184
115
407
(14.3)
10
Designs, materials, weights and performance ratings are approximate and subject to change without notice. Visit armstronginternational.com for up-to-date information.
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