Table C. Capacities for High Pressure Regulators
(continued)
Table D. Materials of Construction
(see Figure 1.)
Bulletin 7347
Page 5
Body,
Diaphragm
Casing, and
Spring Case
Orifi ce
Cast Iron
Aluminum
Thermoplastic
Stainless
Steel
Stainless
Steel
Zinc-plated
steel
Nitrile (NBR)
Control
Spring and
Lever
Diaphragm
and Disk
Closing Cap
Stem
Pitot Tube and
Relief Valve
Spring
Regulator
Designation
Outlet Pressure
Setting
Spring
Capacities in scfh (Nm
3
/hr)
of 0.6 specifi c gravity gas
2 (0.14)
6 (0.41)
10 (0.69)
30 (2.1)
60 (4.1)
1 psig
(69 mbar)
7347-2-B
0.5 (0.034)
1 (0.069)
5 (0.34)
8 (0.83)
20 (1.4)
35 (2.4)
7" w.c.
(17 mbar)
7347-2-G
7347-2-A
240 (6.43)
340 (9.11)
1770 (47.4)
1800 (48.2)
1800 (48.2)
1800 (48.2)
300 (8.04)
670 (18.0)
950 (25.5)
2000 (53.6)
3100 (83.1)
Inlet Pressure
psig (bar)
Red
4-8"w.c.
(10-20 mbar)
Green
1.2-2.5 psig
(0.08-0.17 bar)
Unpainted
7-16"w.c.
(17-40 mbar)
Casing
Relief Valve
Spring
Lever
Stem
Disk
Orifi ce
Body
Pitot Tube
Spring Case
Control Spring
Closing Cap
Diaphragm
Figure 1. Assembly Drawing
Capacities and Assembly | High Pressure Gas Regulator
