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6.1 For air (at 20˚C)
Capacity <Pressure vessel structure standard>
Blowout
Nominal
area
size
2
[mm
]
15A
20.1
20A
34.6
25A
53.0
32A
93.3
40A
135.2
50A
208.2
6.2 For water (at 20˚C, accumulation: 25%)
Capacity <Yoshitake standard>
Blowout
Nominal
area
size
2
[mm
]
15A
20.1
20A
34.6
25A
53.0
32A
93.3
40A
135.2
50A
208.2
*1: [Example] When the set pressure of 1.0 MPa, and the valve size is 50A
The capacity is 22.4 m
25%) after the fluid pressure reaches the set pressure of 1.0 MPa.
6. Nominal Size Selection Table
0.05
0.1
0.2
25
33
48
44
57
83
67
87
127
113
147
214
169
221
321
262
341
496
0.05
0.1
0.2
0.4
0.5
0.9
0.6
0.9
1.6
1.0
1.5
2.5
1.8
2.6
4.5
2.7
3.8
6.5
4.1
5.9
10.0
3
/h, when the inlet pressure reaches 1.25 MPa (accumulation becomes
Set pressure [MPa]
0.3
0.4
0.5
65
81
98
111
140
169
171
215
258
288
362
435
431
542
652
666
836
1006
Set pressure [MPa]
0.3
0.4
0.5
1.1
1.3
1.5
2.0
2.3
2.6
3.1
3.6
4.0
5.5
6.3
7.1
7.9
9.2
10.3
12.3
14.2
15.9
4
0.6
0.7
0.8
114
131
147
197
226
254
302
346
390
509
582
656
762
872
982
1176
1346
1516
0.6
0.7
0.8
1.6
1.8
1.9
2.8
3.1
3.3
4.4
4.7
5.1
7.8
8.4
9.0
11.3
12.2
13.0
17.4
18.8
20.1
E PDT-193d
■
[kg/h]
0.9
1.0
164
181
283
311
433
477
730
803
1093
1203
1687
1857
3
[m
/h]
0.9
1.0
2.0
2.1
3.5
3.7
5.4
5.7
9.5
10.0
13.8
14.6
21.3
22.4
■
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