Festo VTSA Series Description page 38

1. Overview of components
1
All ducts open if not marked
2
Duct (1) closed
Fig. 1/10: Seal plate identification
1−22
3
4
Pilot control
The valve terminal can either be supplied with internal pilot
air via the soft−start valve or with internal or external pilot air
via the various right end plate variants.
There are two groups of end plates on VTSA... valve ter
minals.
For end plates with axial supply connections, the pilot
variant is determined by the design.
2
1
4
3
Ducts (3) and (5) closed
Ducts (1), (3) and (5) closed
Festo P.BE−VTSA−44−EN en 0905e