Open-type DCV
Graphical symbol for pilot-operated four-way valve
Air pilot-operated four-way valve
Pilot-operated direction control valve
Direct acting direction control valve
Spring offset. Solenoid operated three-way valve, normally open
Spring offset, Solenoid operated three-way valve, normally closed
Spring offset, Solenoid operated two-way valve, normally open
Spring offset, Solenoid operated two-way valve, normally closed
Hand-operated hydraulic jack system