Burkert Type 2301 - Manual (Page 18)

18
Technical data
• Theoretical setting ratio (Kv
s
/ Kv
o
):
50 : 1 for seats DN 8 – DN 50
25 : 1 for seat DN 6
10 : 1 for seat DN 4
• Kv
R
value 9) at 5 % of the lift for DN > 10 mm
Kv
R
value at 10 % of the lift for DN ≤ 10 mm
7.5.2 flow values
connection size
(flange) actuator size kv
s
values
Orifice dn (seat) [mm]
[mm] [mm] 4 6 8 10 15 20 25 32 40 50 65 80 100
10 50 – 70 0.5 1.2 2.0 2.7 - - - - - - - - -
15 50 – 70 0.5 1.2 2.1 3.1 4.3 - - - - - - - -
20 50 – 70 - - - 3.2 5.2 7.1 - - - - - - -
25 50 – 90 - - - - 5.3 7.2 12.0 - - - - - -
32
90 - - - - - 5.5 9.9 13.4 - - - - -
130 - - - - - 8.0 13.0 17.8 - - - - -
40
90 - - - - - - 10.3 14.4 17.5 - - - -
130 - - - - - - 13.6 20.2 23.8 - - - -
50
90 - - - - - - - 15.3 18.0 28.0 - - -
130 - - - - - - - 21.0 24.6 37.0 - - -
65 130 - - - - - - - - 29.0 45.0 65.0 - -
80 130 - - - - - - - - - 45.0 73.0 100 -
100 130 - - - - - - - - - - 77.0 110 140
Tab. 7: Kv
s
values
9)
Kv
R
value = the smallest Kv value at which the angularity tolerance according to DIN / IEC 534-2-4 is still maintained.
english
Type 2301