Parker Hannifin H21WXBBL49D Air Solenoid Valve

The Parker Hannifin H21WXBBL49D is a single-solenoid air return valve used to control compressed-air flow in pneumatic systems. This Parker Hannifin device is identified by part number H21WXBBL49D and catalog reference 835211 and operates by an electrical coil to actuate the valve, directing or venting air in automated circuits as needed. Its single-solenoid configuration supports straightforward control for actuators in manufacturing equipment, such as pneumatic cylinders or grippers, where an air return function needs to be commanded electrically. The H21WXBBL49D designation specifies the coil/valve arrangement for this unit within Parker Hannifin’s air valve lineup.