40
GOVERNORS NOR
TH AMERICA
US
LOW PRESSURE GAS REGULATOR
|
DESCRIPTION AND OPERATION
|
REV. A
Operation, maintenance and warning manual
4.5.1 - FLOW RATE COEFFICIENTS
In Tab. 4.20 the flow rate coefficients (Cg) of stabilizers without filter as indicated by DIN EN 334 are given:
Flow rate coefficients (stabilizers without filter)
Version
High flow rate
Nominal
size
[mm]
15
20
25
15
20
25
32
40
50
65
80
100
[inches]
1/2”
3/4”
1”
1/2”
3/4”
1”
1” 1/4 1” 1/2
2”
2” 1/2
3”
4”
Cg
(Standard Version)
80
100
130
190
240
285
680
710
1300
1650
2000 3500
Cg
(Zero/Ratio Versions)
-
-
-
160
205
240
580
610
1100
1400
1700 2980
Cg
(Goval Version)
Pu ≤ 350 bar
Pd ≤ 35 mbar
56
70
90
135
170
200
545
570
1200
1480
1800 3150
Tab. 4.20.
In Tab. 4.21 the flow rate coefficients (Cg) of stabilizers with filter as indicated by DIN EN 334 are given:
Flow rate coefficients (stabilizers with filter)
Version
High flow rate
Nominal
size
[mm]
15
20
25
15
20
25
32
40
50
65
80
100
[inches]
1/2”
3/4”
1”
1/2”
3/4”
1”
1” 1/4 1” 1/2
2”
2” 1/2
3”
4”
Cg
(Standard Version)
68
82
110
135
158
200
460
570
1150
1450
1600 2850
Cg
(Zero/Ratio Versions)
-
-
-
116
135
170
390
485
980
1250
1380 2430
Cg
(Goval Version)
Pu ≤ 350 bar
Pd ≤ 35 mbar
56
70
90
108
140
162
440
550
1100
1380
1500 2700
Tab. 4.21.
Summary of Contents for 30051
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