Table C. 7337A-3 Regulator Inlet Pressure Ratings and Flow Co effi
cients
Bulletin 7337A-3
Page 4
7337A-3-GYS, 7337A-GYS-SS
7337A-3-GNS, 7337A-3-GNS-SS
3/8"
125
175
110
29.5
7337A-3-BS, 7337A-3-BS-SS
7337A-3-2538, 7337A-3-2538-SS
7337A-3-LGY, 7337A-3-LGY-SS
80
7337A-3-LGN, 7337A-3-LGN-SS
3/4"
175
450 34
7337A-3-LB, 7337A-3-LB-SS
60
7377A-3-2534, 7337A-3-2534-SS
7337A-3-LGY1, 7337A-3-LGY1-SS
25
7337A-3-LGN1, 7337A-LGN1-SS
1"
7377A-3-LB1, 7337A-3-LB1-SS
30
175
765
38.1
7377A-3-2510, 7337A-3-2510-SS
Regulator
Designation
Orifi ce
Size
Max. Inlet
Pressure psig
Max. Emergency Inlet
Pressure psig
C
g
C
1
Table D. 7337A-3 Capacities in scfh of 0.6 Specifi c Gravity Gas with Inlet Pressures in psig
7337A-3-GYS,
Purple
8-12"w.c.
1230
1920
3160
4150
4910
5680
6370
7830
9010
9040
9620
7337A-3-GYS-SS
7337A-3-GNS,
Dk. Green 14-30"w.c. 1400
2100
2800 3750 4600 5000 6000 7350 8450 9050 11000
7337A-3-GNS-SS
7337A-3-BS,
3/8"
Blue 1.0-2.5 psig
1000
1160
1980 2690 3370 4050 4720 6280 7550 8960 10320
7337A-3-BS-SS
7337A-3-2538,
Yellow 2.5-5.5 psig
—
—
940
1220
1590 1900 2200 2760 3310
4160
5290
7337A-3-2538-SS
7337A-3-LGY,
Purple
8-12"w.c.
2810
4130
5950
7110
7770
8220
8560
8770
9000
9070
—
7337A-3-LGY-SS
7337A-3-LGN,
Dk. Green 14-30"w.c. 2900 3800 5600 6900 8150 9050 9400 9500 10300 10550 11000
7337A-3-LGN-SS
3/4"
7337A-3-LB
Blue 1.0-2.5 psig
1600 2440 4280 5580 6870 7580 8570 9450 10220 10420 11180
7337A-3-LB-SS
7337A-3-2534,
Yellow 2.5-5.5 psig
—
—
1910 2660
3110 3890 4290
5110 6500
7410
9230
7337A-3-2534-SS
7337A-3-LGY1,
Purple
8-12"w.c. 3680
4850
6650
7520
8010
8330
— — — — —
7337A-3-LGY1-SS
7337A-3-LGN1,
Dk.
Green
14-30"w.c.
2960
4600
5800
7300
8000
8600
— — — — —
7337A-3-LGN1-SS
7337A-3-LB1,
1" Blue
1.0-2.5
psig 1800
3300
5250
6920
7870
8440
— — — — —
7337A-3-LB1-SS
7337A-3-2510,
Yellow 2.5-5.5 psig
—
—
2390 3570 4580 5790 6200
—
—
—
—
7337A-3-2510-SS
Regulator
Designation
Orifi ce
Size
Spring
3
5
10
15
20
25
30
40
50
60
80
Inlet Pressure (PSIG)
Capacities | High Pressure Gas Regulator