User Manual

6
Siemens
A6V12045425_en--_b
Smart Infrastructure
2020-08-12
Flow k
v
/ k
vs
Angle of rotation [°]
Engineerging Notes
Single flange mounting is possible: 1000 kPa
The VFF41.. butterfly valves can accommodate flow in either direction.
Warning
To avoid pressure shocks on the butterfly valve, the VFF41.. must be driven to its fully open
position either manually or via control signal Y14 prior to activat-ing the pump(s).
Mounting notes
The mounting instruction A6V12045430 is enclosed in the product pack-aging.
DN 40…900 butterfly valves can be mounted in PN 16 applications
Orientation
Upright to horizontal