Data Sheet for Product

3
Siemens
A6V12170259_en--_a
Smart Infrastructure
2021-05-26
Sizing
Flow diagram:
Δp
max
for MDB461..AI, MLB461..AI, for details, see table on Type summary
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