Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document. © 2015 Norgren, Inc.
Simplified Valve Circuit Guide
11
Sequence Circuit, Cylinders Extend in
Succession,
Three Valves. (Spool Valves Shown)
The sequence valve can be adjusted to allow the second
cylinder to extend after cylinder number 1 has extended
fully and the pressure has built up. Cylinder number 2
pressure is independent of cylinder number 1 pressure, the
force generated by cylinder number 2 is not dependent on
cylinder number 1.
Note: A bleed must be provided as shown to exhaust pilot
air.
Time Based, Cylinders Extend in
Succession.
(Poppet Valves Shown)
Cylinder number 2 extends only after a time delay, which
starts when cylinder number 1 is extended.
CYLINDER 1
1
14
12
3
5
1
3
2
1
14
12
3
5
CYLINDER 2
BLEED
SEQUENCE
VALVE
4
2
4
2
CYLINDER NO. 2
IN
EX
CYL. 1
CYL. 2
MANUAL
VALVE
CYLINDER NO.1
IN EX
CYL. 1 CYL. 2
TIME DELAY
This circuit is not suitable for use with Poppet valves
because of crossover during shifting.
