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Sizing
Flow diagram:
Δp
---
for VAG61.. and VBG61.., for details, see table on equipment combinations
max
Δp
= Maximum permissible differential pressure over the ball valve, valid for the entire
max
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
= Differential pressure over the fully opened ball valve and over the control path at a volume
v100
flow V
= Volume flow through the fully opened ball valve
100
= 1 bar ≈ 10 mWS
100 kPa
3
1 m
/h
= 0.278 l/s water at 20 °C
Siemens
Smart Infrastructure
100
3
N4212en
2019-06-04
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