AAA Products International, Inc. Datasheets for Air Valves

Air valves allow metered fluid flow in one or both directions. They are used in pneumatic circuits to regulate the rate of activation or exhaust of cylinders and other pneumatic devices.
Air Valves: Learn more

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Product Name Notes
2-position, double differential pilot, no springs, furnished with button on both ends. Spool stays in shifted position. (Minimum of 25 psi)
2-position, double pilot, no springs. Spool stays in either shifted position when pilot pressure is removed.
2-position, friction positioned. Cam roller mounted on both ends of valve.
2-position, friction positioned. Spool stays in any position when handle is released.
2-position, friction positioned. Spool stays in any position when knob is released.
2-position, friction positioned. Spool stays in any position when treadle is released.
2-position, no springs. Double acting piston actuator on one end. Spool stays in shifted position when pilot pressure is removed.
2-position, pilot return. Minimum pilot signal 25 psi. Force of 5 lbs. required to shift spool when pilot port is vented
2-position, pilot returned spool. Spool returns to position "C" from auxiliary control valve furnished by the user (or by knob).
2-position, pilot returned spool. Spool returns to position "C" from auxiliary control valve furnished by the user.
2-position, single differential pilot, spring return. Spool returns to original position when button is pressed.
2-position, single pilot, spring return. Spool returns to original position when pilot pressure is removed.
2-position, spring return. Normal spool travel 17/32" with 1/32" over-travel. Spool returns to position "C" when cam is released.
2-position, spring return. Single acting piston actuator on one end. Spool returns to original position when pilot pressure is removed.
2-position, spring returned spool. Spool returns to position "C" when the handle is released.
2-position, spring returned spool. Spool returns to position "C" when the knob is released.
2-position, spring returned spool. Spool returns to position "C" when the pedal is released.
2-position, spring returned spool. Spool returns to position "C" when the treadle is released.
3-position, double differential pilot, spring centered, closed center spool. Spool centers when buttons are both closed or opened. See other spools on page 50.
3-position, double pilot, spring centered, closed center spool. Spool centers when pilot pressure is removed from both ports. See other spools on page 50.
3-position, friction position, positive detent in all positions. Spool stays in position when knob is released.
3-position, friction position, positive detent in all positions. Spool stays in position when lever is released.
3-position, spring centered, closed center spool. Double acting piston actuator on one end. Spool centers when pilot pressure is removed from both ports. See other spools on page 50.
3-position, spring centered. Spool returns to position "B" when handle is released.
3-position, spring centered. Spool returns to position "B" when treadle is released.
3-position, spring centered. When knob is released, spool shifts to center (position "B").
Cam roller models are operated with a cam that shifts the spool. To fully shift the valve, the cam is pushed toward the valve. Normally the cam is contacted by...
Designed for operation on compressed air; not suitable for liquid service. May be used to handle inert gases, although a source of compressed air may be required for spool shifting...
Differential Pilot models are operated with a button bleeder that shifts the spool.
Double solenoid, 2-position, no springs. Spool shifts and remains shifted when one solenoid or the other is momentarily or continuously energized.
Double solenoid, 3-position, spring centered, closed center spool. All ports are blocked when both solenoids are de-energized. See for other spools.
Foot pedal/treadle models are operated with a foot pedal/treadle that shifts the spool. The standard treadle position for a 3-position valve is the center of the valve (Position "B"). To...
Manual lever models are operated with a handle that shifts the spool. The standard handle position of the knob for a 3-position valve is the center of the valve (Position...
Pilot models are operated with a remote pressure source that shifts the spool. To shift the valve, remote pressure source is sent to the valve. Refer to the section on...
Piston models are operated with a larger piston that shifts the spool. This allows you to use lower pilot pressures to shift the valve. Because of the large piston area...
Single solenoid, 2-position, pilot pressure returned spool. Pilot pressure from an external 3-way valve returns spool to its original position.
Single solenoid, 2-position, spring return. Spool returns to original position when solenoid is de-energized.
The "B-Series" stack valve consists of individual sections sandwiched between two end plates, the stack being held together with three tie bolts. Sections, listed on page 122 through page 139,...

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