■
EPDT-258a
■
3
･
The preset temperature error is the maximum temperature width ranging from the time when the valve
closes until the time when the valve starts to open, not the value expressing the control width.
3.4
Cv value table
Nominal size
15A
20A
25A
32A
40A
50A
65A
80A
100A 125A 150A
OB-3
･
3G
2
2
4
7
10
―
―
―
―
―
―
OB-4
2
2
4
7
10
14
21
27
42
72
94
OB-4G
2
2
4
7
10
14
21
27
42
72
―
3.5
Valve Seat Leakage
Unit
：
steam (kg/h),water (L/h)
Nominal size
15A
20A
25A
32A
40A
50A
65A
80A
100A 125A 150A
OB-3
･
3G
1.5
1.5
1.8
2.4
3.0
―
―
―
―
―
―
OB-4
1.5
1.5
1.8
2.4
3.0
3.6
4.8
6.0
7.2
9.0
10.8
OB-4G
1.5
1.5
1.8
2.4
3.0
3.6
4.8
6.0
7.2
9.0
―
･
The leakage amount mentioned above is the maximum leakage amount measured when