ARO MQ2021 is a 5-port, 2-position solenoid-operated spool valve (5/2) designed to control double-acting pneumatic cylinders with a 115V coil. This valve directs compressed air between the supply port and the two actuator ports to extend or retract a cylinder, while venting the opposite side through integrated exhaust ports. Common applications include automation lines and packaging equipment where accurate directional control of air is required.
