Festo VTSA Series Description page 44

1. Overview of components
Identification in
the type code
R5−...−10
F1B1
P1A3
L1D1
Tab. 1/11: Identification of the vertical stacking component in the type code
P pressure regulating
valve (identifiers R1−...−6
and R1−...−10)
1−28
ID Vertical stacking components
code
ZEY Reversible AB pressure regulator plate for ports (2) and (4), with
symmetrical structure, control range 0.5 to 10 bar
X Flow control plate for restricting the exhaust in ducts (3) and (5)
ZU Vertical pressure supply plate for supplying an individual operating
pressure for a valve position
ZT Vertical pressure shut−off plate for cutting off the individual
operating pressure for a valve position
Pressure regulator plates
Mode of operation:
Supply process:
The P pressure regulating valve regulates the pressure in
front of the valve in duct (1) (P). This way, ducts (2) and (4)
have the same regulated pressure.
Exhaust process:
The exhaust flow in the valve is from duct (2) to duct (3) and
from duct (4) to duct (5).
The advantages of this pressure regulating valve are:
The pressure regulating valve is not affected by exhaust
ing, since the pressure is regulated upstream of the valve.
The pressure regulating valve can always be adjusted
because the pressure from the valve terminal is always
present.
Festo P.BE−VTSA−44−EN en 0905e