Festo VTSA-44-ASI Series, Manual

Page: 153 / 220

5. Maintenance and conversion
5-11
Festo P.BE-VTSA-44-EN en 1101f
Exhaust port cover with metal
exhaust silencer type U-½-B Exhaust port cover with plastic
exhaust silencer type U-½
Valve position with
vertical stacking
components – P-pressure regulator plate
– B-pressure regulator plate
– AB-pressure regulator plate
– Vertical pressure shut-off plate
– Vertical supply plate
– Flow control plate – A-pressure regulator plate
Tab. 5/3: Combination possibilities of exhaust silencers with adjacent vertical stacking
components
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, Tab. B/9). If all the valve
positions on the VTSA valve terminal are equipped with
vertical pressure shut-off plates, it will not be necessary
to supply the valve terminal with external pilot air.
The operating pressure at which the valve terminal is
operated must in this case 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 supply plates