Data Sheet
Bulletin 74.3:ACE97
8
Table 10. NPS 1 / DN 25 Depad Valve Capacities of 1.0 Specific Gravity Air
(1)
m
C
v
C
v
= 6 C
v
C
v
= 17
Nm
Nm
Nm
Nm
2
3
4
5
5
7
10
12
180
220
250
280
4.8
5.9
6.7
7.5
360
440
510
570
9.6
11.8
13.7
15.3
730
890
1030
1150
19.6
23.9
27.6
30.8
1030
1260
1460
1630
27.6
33.8
39.1
43.7
6
7
8
9
10
15
17
20
22
25
310
340
360
380
400
8.3
9.1
9.6
10.2
10.7
630
680
730
770
810
16.9
18.2
19.6
20.6
21.7
1260
1360
1460
1540
1630
33.8
36.4
39.1
41.3
43.7
1790
1930
2060
2190
2310
48.0
51.7
55.2
58.7
61.9
12
14
16
18
20
30
35
40
45
50
440
480
510
540
570
11.8
12.9
13.7
14.5
15.3
890
960
1030
1090
1150
23.9
25.7
27.6
29.2
30.8
1780
1930
2060
2190
2300
47.7
51.7
55.2
58.7
61.6
2530
2730
2920
3100
3270
67.8
73.2
78.3
83.1
87.6
22
24
26
28
30
55
60
65
70
75
600
630
650
680
700
16.1
16.9
17.4
18.2
18.8
1210
1260
1310
1360
1410
32.4
33.8
35.1
36.5
37.8
2420
2520
2630
2730
2820
64.9
67.5
70.5
73.2
75.6
3430
3580
3720
3870
4000
91.9
95.9
99.7
104
107
1.0 psig
1.1 psig
1.2 psig
1.3 psig
1.4 psig
69
76
83
90
97
670
710
740
770
800
18.0
19.0
19.8
20.6
21.4
1350
1420
1480
1540
1600
36.2
38.1
39.7
41.3
42.9
2710
2840
2970
3090
3210
72.6
76.1
79.6
82.8
86.0
3840
4030
4210
4380
4550
103
108
113
117
122
1.5 psig
1.6 psig
1.7 psig
1.8 psig
1.9 psig
103
110
117
124
131
830
850
880
910
930
22.2
22.8
23.6
24.4
24.9
1660
1710
1770
1820
1870
44.5
45.8
47.4
48.8
50.1
3320
3430
3540
3640
3740
89.0
91.9
94.9
97.6
100
4710
4870
5020
5160
5300
126
130
134
138
142
2.0 psig
2.1 psig
2.2 psig
2.3 psig
2.4 psig
138
145
152
159
165
960
980
1000
1030
1050
25.7
26.3
26.8
27.6
28.1
1920
1970
2010
2060
2100
51.5
52.8
53.9
55.2
56.3
3840
3940
4030
4120
4210
103
106
108
110
113
5440
5580
5710
5840
5970
146
149
153
156
160
2.5 psig
2.6 psig
2.7 psig
2.8 psig
172
179
186
193
1070
1090
1110
1130
28.7
29.2
29.7
30.3
2150
2190
2230
2270
57.6
58.7
59.8
60.8
4300
4380
4470
4550
115
117
120
122
6090
6210
6330
6450
163
166
170
173
1. Always use the differential pressure between tank pressure (depad setpoint) and vent header (vapor recovery) pressure to calculate ow through the depad valve.