Festo VTSA Series Description page 145

5. Maintenance and conversion
Valve position with
vertical stacking
components
Tab. 5/3: Possible combinations of exhaust silencers with adjacent vertical stacking com
ponents
Festo P.BE−VTSA−44−EN en 0905e
Exhaust port cover with metal
exhaust silencer type U−½−B
P pressure regulator plate
B pressure regulator plate
AB pressure regulator plate
Vertical pressure shut−off plate
Vertical pressure supply plate
Flow control plate
Note
Reversible pressure regulator plates may only be com
bined with valves which can be operated reversibly.
Valve position with vertical pressure shut−off plate:
The pilot air supply for the valve is branched internally
from duct (1) in the vertical pressure shut−off plate, even
if the valve terminal is operated with external pilot air
supply (see Appendix B, section Tab. B/9). If all the v alve
positions on the VTSA valve terminal are fitted with verti
cal pressure shut−off plates, it will not be necessary to
supply the valve terminal with external pilot air. In this
case, the operating pressure at which the valve terminal
is operated must lie within the range of the required
pilot pressure (see Appendix A, Tab. A/6 and Fig. A/1).
The combination of reversibly operated valve terminals
with the following components for vertical stacking is
not permitted:
Reversible pressure regulator plates
Flow control plates
Vertical pressure shut−off plates
Vertical pressure supply plates
Exhaust port cover with plastic
exhaust silencer type U−½
A pressure regulator plate
5−11