Airtac Air Pilot Valve Model 4A220-08T

Note: These are genuine Airtac Valves with NPT pipe threads, they have glide rings on the spools and the lettering does not wipe off with solvent.  They are probably the most copied design in the world.  They are made in Taiwan, but also have a warehouse in Katy, Texas.  We are an authorized Airtac Distributor.

IN STOCK IN MICHIGAN

Function:

        This is a 5 ported 4 Way Directional Control Valve used to move cylinders or actuators.  Supply pressure must be supplied to the center port on the side of the valve with the 3 ports.  The outlet ports on the opposite side are connected to each side of a cylinder or actuator.  The pressure will hold the cylinder in one position while the other side of the cylinder is exhausted.  When pilot pressure is applied to the air pilot end of the valve, the valve spool will shift causing air to go to the opposite side of the cylinder while exhausting the side that was pressurized.  This causes the cylinder to shift (or extend).  When the pilot pressure is removed and pressure is applied to the opposite pilot,  the valve will return the spool causing the cylinder to return to it's original position.  Mufflers may be added to the exhaust ports to quiet the air exhausting.  Adjustable Exhaust restrictors may be used to in the exhaust ports to control the speed of the cylinder.  If flow controls are used, they should always be placed in the lines between the cylinder and the outlet ports and control the air flow as it exhausts from the cylinder.  

Specifications:

          Media- Air (Minimum 40 micron filtration)

          No of positions and Ports- 2 Position, 5 Ports

          Flow- Cv=.78, Equivalent Orifice Area= 14 mm², (36.6 cubic feet per minute at 80 PSI)

          Port Size- IN OUT = 1/4 NPT, Exhaust= 1/8" NPT

          Voltage range- plus or minus 10%

          Pressure Range- 24PSI min to 100 PSI Maximum

          Wire Insulation- Class F

          Weight= .48 lbs

AIRTAC 4A200 SERIES CATALOG (PDF)