Owner manual

Series KN/F, KNP/F, KN-D/F, KNP-D/F Page 5
520-050-en Revision 10
TM 8361 Edition 10/2011
Body screws
Nom. size Screws Tightening torque
[mm] [ISO/DIN] [Nm] [in-lbs]
15 4 x M12 35 310
20 4 x M12 35 310
25 4 x M12 35 310
40 4 x M16 45 398
50 4 x M16 45 398
80 8 x M16 50 442
100 8 x M16 60 531
150 8 x M20 150 1330
200/150 8 x M20 150 1330
1.3 Breakaway torques
Test medium: water 20 °C
Higher breakaway torques may occur with other
media.
Ball/stem unit
DN
p in bar
B 3 6 10 16 max. adm.
[mm] [Nm] [Nm] [Nm] [Nm] [Nm]
15 8 8 8 10 70
20 8 8 8 10 70
25 12 12 12 12 70
40 20 20 20 25 225
50 25 25 25 30 225
80 60 60 65 80 500
100 80 80 90 170 500
150 200 250 350 --- 2200
200/150 200 250 350 --- 2250
Al
2
O
3
-ball
DN
p in bar
B 3 6 10 16 max. adm.
[mm] [Nm] [Nm] [Nm] [Nm] [Nm]
15 10 10 10 12 28
20 10 10 10 12 28
25 12 12 12 12 28
40 20 25 30 45 80
50 25 30 35 50 120
80 60 100 160 220 250
100 80 130 200 280 350
150 350 450 600 --- 1200
200/150 350 450 600 --- 1200
1.4 Flow values
Nennweite Kv100 Cv
[mm] [m
3
/h] [US gpm]
1
5 17,5 20
20 31 36
25 75 87
40 200 233
50 310 361
80 800 932
100 1250 1456
150 2800 3262
200/150 3200 3728
1.5 Pressure-temperature-diagram
When used in the minus temperature range,
the regulations applicable in the country in
question must be observed.
A special core material is used for the ball/stem unit
for operating limits under – 10 °C to – 60 °C.
Ball/stem unit
Al
2
O
3
-ball