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
21
Time Delay on Retraction of Cylinder.
(Spool and Poppet Valves Shown)
The cylinder retraction can be delayed up to one minute after
the manual valve has been deactuated by using a Norgren
T.D.R. (-"02 = 0-5 seconds, or -"04 = 0-60 seconds) time
delay and a 4-way valve.
Cylinder Cycles Once with Long Signal to
Valve
(One-Shot). (Spool and Poppet Valves
Shown)
The cylinder will complete one cycle when a long signal has
been applied to the power valve by using a Norgren -23 time
delay and a 4-way valve. This circuit is for pulse shortening.
Use circuit on top of page 20 for pulse stretching.
CYLINDER
MANUAL
VALVE
1
2
3
10
12
IN
EX
CYL. 1
CYL. 2
TIME DELAY
NORGREN
4-WAY
POPPET
VALVE
-02
OR
-04
CYLINDER
MANUAL
VALVE
1
2
3
10
12
IN
EX
CYL. 1
CYL. 2
TIME DELAY
NORGREN
4-WAY
POPPET
VALVE
-23
