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100
80
60
40
20
40 80 120 160
PURGE GAS FLOW RATE (SCFM)
200
P
1
20 60 100 140 180
10
30
50
70
90
0
0
PURGE PRESSURE P
1
PSIG
220
Orifice Dia. .500
Gas: Air
Temp: 100°F
C
D
: .65
Figure C.11 — Critical Orifice Calibration Curve
(LSC1500)
HYDROBLOC LSC
PURGE CURVES