Table C. 7337A/B/C-4 Capacities
(continued)
Table D. Materials of Construction
Bulletin 7337A/B/C-4
Page 5
Body
Diaphragm
Casing, and
Spring Case
Cast Iron
Orifi ce
Brass
Aluminum
Brass
Plated
Steel
Diaphragm
Plate
Buna-A with
Nylon Fabric
Insert
Diaphragms
Stem
Capacities in scfh
Inlet Pressure
psig
Outlet Pressure
psig
unless otherwise
noted
1/2" orifi ce 3/4" orifi ce 1" orifi ce
30
40
50
60
80
100
125
150
11600
11300
10000
8750
6300
14200
14000
12800
11700
9800
7000
16800
16500
15400
14500
13000
19400
19000
18500
17000
24600
29800
36300
41000
24500
24000
21700
18500
13200
30000
29500
27200
24500
20400
14800
35500
35000
32500
30500
27100
41000
40500
39000
36400
52000
62500
76500
7 and less
10
15
20
25
10 and less
15
20
25
30
35
15 and less
20
25
30
35
20 and less
25
30
35
35 and less
35 and less
35 and less
35 and less
40200
39400
35500
30400
21600
49200
48500
44500
40500
33400
24300
58200
57400
53200
50000
44600
67200
66000
63500
59500
Capacities | High Pressure Gas Regulators
