Page 369 - Brass, Composite and Thermoplastic Fittings and Valves

Catalog 3501E

Operation
Depending on operational requirement, air is passed into the actuation chamber to open or close the valve. Ball Valves

Normally Closed Axial Valve (NC) Normally Open Axial Valve (NO) Double-Acting Axial Valve (DE)
Piloted Signal Piloted Signal
Return Spring Return Spring To Close To Open

Rest State (Valve Closed) Rest State (Valve Open) Piloted State (Valve Closed)

Piloted Signal Piloted Signal

Piloted State (Valve Open) Piloted State (Valve Closed)

Installation Options
The Parker axial valve offers 3 different control methods dependant on the requirements of the installation:

Pneumatic Control Control Pneumatic
Control Signal
Valve
Example: Double-acting axial valve 4222
P
■ Local compressed air control
■ For repetitive on/off cycles
■ Remote control where access to the machine is difficult
■ For explosive or explosion prevention areas
Pneumatic Operation

P Mini Solenoid
Electro-Pneumatic Control Valve
Example: Normally closed axial valve 4202
Pneumatic
■ Sub-base and mini-solenoid valve 4298 Control Signal
■ For automated industrial systems requiring remote control
■ Namur seating plane solenoid valve
Electro-Pneumatic
Operation

Dual Pneumatic and Electro-Pneumatic Control Pneumatic Control Signal
Example: Normally open axial valve 4212 P
Mini Solenoid
■ Sub-base and mini-solenoid valve 4298 Valve
■ Pneumatic push-button 4299 Pneumatic
■ Dual control structure Control Signal
■ For increased safety: prevents localised operating errors
■ Namur seating plane solenoid valve Pneumatic/
Electro-Pneumatic Operation

Parker Hannifin Corporation | Fluid System Connectors | Otsego, MI K59