Series NKS-N, NKSP-N
Page
6
9520-021-en
Revision 17
TM 10477
Edition 05/2022
1.6 Pressure-temperature diagram
When used in the area of application of ASME, the low temperature of ASTM A395 is limited to -20°F (-29°C)
When used in the minus temperature range, the regulations applicable in the country in question must
be observed.
2014/68/EU (PED), AD2000, DIN EN 16668
ASME B16.42
DIN EN ISO 15848-1 certificate valid from -29°C to 200°C
1.8 Actuating torques
Nominal size
Md
erf
Md
max
[mm]
[inch]
[Nm]
[Nm]
50
2“
20
100
80
3“
46
180
100
4“
63
360
150
6“
128
725
200
8“
185
775
250
10“
287
1435
300
12“
410
1775
350
14“
550
3000
1.9 Cavitation coefficient z for
75% duty
Nominal size
(at kv/kvs = 75 %)
[mm]
[inch]
z
50
2“
0.32
80
3“
0.30
100
4“
0.29
150
6“
0.26
200
8“
0.23
250
10“
0.19
300
12“
0.16
350
14“
0.14
