Capacities | High Pressure Gas Regulator
Table C. 7337A-3 Regulator Inlet Pressure Ratings and Flow Coefficients
Max. Inlet Pressure psig
Regulator Designation
Max. Emergency Inlet Pressure psig
Orifi ce Size
C g
C
1
7337A-3-GYS, 7337A-GYS-SS 7337A-3-GNS, 7337A-3-GNS-SS 7337A-3-BS, 7337A-3-BS-SS 7337A-3-2538, 7337A-3-2538-SS 7337A-3-LGY, 7337A-3-LGY-SS 7337A-3-LGN, 7337A-3-LGN-SS 7337A-3-LB, 7337A-3-LB-SS 7377A-3-2534, 7337A-3-2534-SS 7337A-3-LGY1, 7337A-3-LGY1-SS 7337A-3-LGN1, 7337A-LGN1-SS 7377A-3-LB1, 7337A-3-LB1-SS 7377A-3-2510, 7337A-3-2510-SS
3/8"
125
175
110
29.5
80
3/4"
175
450
34
60
25
1"
175
765
38.1
30
Table D. 7337A-3 Capacities in scfh of 0.6 Specific Gravity Gas with Inlet Pressures in psig
3 5 10 1520253040506080 Inlet Pressure (PSIG)
Regulator Designation
Orifi ce Size
Spring
7337A-3-GYS, 7337A-3-GYS-SS 7337A-3-GNS, 7337A-3-GNS-SS 7337A-3-BS, 7337A-3-BS-SS 7337A-3-2538, 7337A-3-2538-SS 7337A-3-LGY, 7337A-3-LGY-SS 7337A-3-LGN, 7337A-3-LGN-SS 7337A-3-LB-SS 7337A-3-2534, 7337A-3-2534-SS 7337A-3-LGY1, 7337A-3-LGY1-SS 7337A-3-LGN1, 7337A-3-LGN1-SS 7337A-3-LB1, 7337A-3-LB1-SS 7337A-3-2510, 7337A-3-2510-SS 7337A-3-LB
Purple 8-12"w.c.
1230 1920 3160 4150 4910 5680 6370 7830 9010 9040 9620
Dk. Green 14-30"w.c. 1400 2100 2800 3750 4600 5000 6000 7350 8450 9050 11000
3/8"
Blue 1.0-2.5 psig
1000 1160 1980 2690 3370 4050 4720 6280 7550 8960 10320
Yellow 2.5-5.5 psig
—
—
940 1220 1590 1900 2200 2760 3310 4160 5290
Purple 8-12"w.c.
2810 4130 5950 7110 7770 8220 8560 8770 9000 9070 —
Dk. Green 14-30"w.c. 2900 3800 5600 6900 8150 9050 9400 9500 10300 10550 11000
3/4"
Blue 1.0-2.5 psig
1600 2440 4280 5580 6870 7580 8570 9450 10220 10420 11180
Yellow 2.5-5.5 psig
—
—
1910 2660 3110 3890 4290 5110 6500 7410 9230
Purple 8-12"w.c.
3680 4850 6650 7520 8010 8330 —
—
—
—
—
Dk. Green 14-30"w.c. 2960 4600 5800 7300 8000 8600 —
—
—
—
—
1"
Blue 1.0-2.5 psig
1800 3300 5250 6920 7870 8440 —
—
—
—
—
Yellow 2.5-5.5 psig
—
—
2390 3570 4580 5790 6200
—
—
—
—
Bulletin 7337A-3 Page 4
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