Emerson AVENTICS AS1 Instrucciones De Servicio página 16

Fig. 8: SOV 2/2-directional or 3/2-directional valve – electrically operated:
Mount coil for explosive area | Series AS2, AS3, AS5
a
Fig. 9: SSV filling valve - pneumatically operated | Series AS1, AS2, AS3, AS5
(P1 = operating pressure, P2 = output pressure, t = time, t
a) = filling time adjustable via adjustment screw (throttle)
a)
2.
3.
1.
b)
Fig. 10: SSV filling valve – pneumatically operated, filling time and change-over
pressure adjustable | Series AS2, AS3
(P1 = operating pressure, P2 = output pressure, t = time, t
change-over pressure)
a) adjust change-over pressure Px
b) Filling time adjustable via adjustment screw (throttle) (see also chapter Pneu-
matically operated > Adjust filling time)
AVENTICS™ AS1 / AS2 / AS3 / AS5 | R412013433-BAL-001-AI | English
P
P1
P2
P2 = 0,5 x P1 (50%)
t x
= switchover time)
x
P
P1
P2
P x
t x
= switchover time, P
x
Fig. 11: SSV filling valve with electric priority circuit, filling time adjustable via ad-
justment screw (throttle) | Series AS2, AS3, AS5
(P1 = operating pressure, P2 = output pressure, t = time, t
a) = electrically triggered switching point
P2 = P1
t
Fig. 12: SSV filling valve with pneumatic priority circuit, filling time adjustable via
adjustment screw (throttle) | Series AS2, AS3, AS5
(P1 = operating pressure, P2 = output pressure, t = time, t
a) = pneumatically triggered switching point
P2 = P1
t
=
x
Fig. 13: SSU filling unit | Series AS1,
AS2, AS3, AS5
P
P1
P2
a)
a)
a)
t x
= switchover time)
x
P
P1
P2
a)
a)
a)
t x
= switchover time)
x
I
Fig. 14: Change flow direction:
Change housing cover | Series AS1,
AS2, AS3, AS5
P2 = P1
t
P2 = P1
t
II
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