Festo VTSA Series, Manual

Page: 127 / 166

5. Maintenance and conversion
5−19
Festo P.BE−VTSA−44−EN en 0601a
Exhaust variant ...
for non−ducted pilot
exhaust air for ducted pilot exhaust air
Position of the
valveseals Seal is visible in the viewing
window on control side 14. The
ISO" mark is visible on the
designation label (see Fig.5/6). Seal is visible in the viewing
window on control side 12. The
ISO" mark is visible on the
designation label.
Tab.5/5: Positions of the valve seals on the pilot exhaust variants
4. Turn all valve seals according to the desired exhaust
variant (see Fig.5/6).
1
Viewing window
at control side 12
2
Seal is visible in
the viewing
window on
control side 14.
3
Designation label
3
1
2
Fig.5/6: Turning the valve seal
5.4.2 Conversion to internal or external pilot air
Pilot control of the valve solenoid coils can be undertaken
with internal or external pilot air, depending on the right−hand
end plate (see chapter 3, Tab.3/1 and Tab.3/2).