17
Parker Hannifin Corporation
Open-Center Directional Control Valve
VO40
Catalog HY17-8505/UK
[50] – Spool Actuators
C
Spring centered to neutral position.
CD
Spring centered with dual control.
CHA2
Two position detent – spool “IN”.
Detent in neutral and “A” positions.
CHB2
Two position detent – spool “OUT”.
Detent in neutral and “B” positions.
CHB3
Three position detent.
B2A
Spring centered with “IN” detent.
Detent in “A” position and spring centering
to neutral position.
B2B
Spring centered with “OUT” detent.
Detent in “B” position and spring centering
to neutral position.
B2C
Spring centered with detent in two
positions “A” & “B”.
CB
Spring centered with detent in fourth
position, used with float spool.
PC
Hydraulic Remote Actuator – Proportional.
EC
Solenoid Operated – Proportional.
(in development)
ED
Solenoid Operated – On/Off.
ACP
Pneumatic actuator – single ended.
The pneumatic actuator for the VO40 allows the
spool to be operated by a pneumatic signal. The
pneumatic actuator is assembled onto one side
of the work section and the opposite end is open
and available for the addition of a handle. A min.
of 5.5 bar (80 PSI) is required. The threaded
ports are both 1/8" NPT.
C
CD
CHA2
CHB2
CHB3
B2A
B2B
B2C
CB
Ordering Information – Work Sections
PC