1-3
Introduction
O-rings
Standard: Buna-N
Optional: Viton-A
®
fluoroelastomers
Window
Scratch resistant, UV stabilized polycarbonate
Protective sleeve must remain over glass tube.
Fasten meter windows securely.
Failure to comply could result in serious personal
injury or property damage.
WARNING
GLASS TUBE EXPLOSION HAZARD
Connections
NPT female
Dimensions
Refer to Figure 1-2
1-4 Optional Equipment
Mounting - front of panel screws
Table 1-1. Capacities.
WATER
AIR @ 14.7 PSIA AND 70°F (21°C)
METER
PRESSURE DROP VISCOSITY IMMUNITY
PRESSURE DROP
PSI
SIZE
TUBE
FLOAT
GPM
LPM
INCHES W.C.
CEILING, CS (**)
SCFM
SLPM
INCHES W.C.
CRITICAL (*)
GLASS
0.17
0.64
1.0
1.0
0.93
26.3
2.0
0
7
R-7M-25-1F
STN. STL.
0.37
1.40
3.0
1.0
1.64
46.4
4.0
0
MONEL
0.39
1.48
4.0
1.0
1.72
48.7
4.0
0
8-RV-3
0.78
2.95
4.0
2.0
3.17
89.8
4.0
0
8-RV-8
1.09
4.13
7.0
3.7
4.45
126.0
8.0
0
8-RS-8
1.40
5.30
10.0
1.8
5.86
166.0
11.0
0
8
R-8M-25-4F
8-RV-14
1.45
5.49
12.0
5.4
5.88
166.5
14.0
0
8-RS-14
1.83
6.93
17.0
1.9
7.56
214.1
19.0
0
8-RV-31
2.06
7.80
23.0
7.0
8.32
235.6
28.0
30
8-RS-31
2.59
9.80
33.0
3.1
10.66
301.9
37.0
30
9-RV-33
2.53
9.58
6.0
11.0
10.45
295.9
7.0
0
9
R-9M-25-3F
9-RS-33
3.24
12.26
7.0
2.4
13.45
380.9
8.0
0
9-RV-87
3.92
14.84
14.0
17.0
16.25
460.2
16.0
30
9-RS-87
5.12
19.38
17.0
3.5
21.20
600.4
20.0
30
10-RV-64
6.28
23.77
11.0
15.0
25.76
729.5
13.0
0
10
R-10M-25-3F 10-RS-64
7.84
29.67
15.0
3.7
32.15
910.5
17.0
0
10-RV-138
8.84
33.46
23.0
23.0
36.10
1022.4
26.0
30
10-RS-138
10.93
41.37
29.0
5.5
45.90
1299.9
33.0
30
12-RV-221
17.21
65.14
10.0
29.0
70.80
2005.1
11.0
0
12-RV-343
20.95
79.30
15.0
36.0
86.45
2448.3
17.0
30
12
R-12M-25-5F 12-RS-221
22.40
84.78
12.0
4.2
91.85
2601.2
14.0
0
12-RS-343
26.90
101.82
18.0
4.5
112.00
3171.8
20.0
30
12-LJ-740
67.60
255.87
65.0
1.0
299.50
8481.8
75.0
30
13-RV-510
31.78
120.29
17.0
42.0
130.90
3707.1
19.0
0
13-RV-760
37.60
142.32
24.0
52.0
155.20
4395.3
27.0
30
13
R-13M-25-3F 13-RS-510
42.52
160.94
23.0
7.6
176.60
5001.3
26.0
0
13-RS-760
49.55
187.55
32.0
9.3
217.70
6165.3
36.0
30
13-LJ-1394
92.00
348.22
92.0
1.0
(*) MINIMUM OPERATING DOWNSTREAM PRESSURE FOR GAS SERVICE (PSIG)
(**) VISCOSITY IMMUNITY CEILING LISTED IS FOR STAINLESS STEEL FLOAT AND FLUID SP.GR. 1.0.
