Data Sheet for Product

3
N4212en
Smart Infrastructure
2021-12-13
Sizing
Flow diagram:
4
0
2
5
1
6
1
0
6
,
3
2
,
5
1
,
6
1
4
6
3
Low noise operation
---
Δp
max
for VAG61.. and VBG61.., for details, see table on equipment combinations
Δp
max
=
Maximum permissible differential pressure over the ball valve, valid for the entire
positioning range of the ball valve rotary actuator unit; if low noise operation is
desired, we recommend a maximum permissible differential pressure of 200 kPa
Δp
v100
=
Differential pressure over the fully opened ball valve and over the control path at a
volume flow V
100
100
=
Volume flow through the fully opened ball valve
100 kPa
=
1 bar ≈ 10 mWS
1 m
3
/h
=
0.278 l/s water at 20 °C