Parker Hannifin HHB4003701D is a pneumatic solenoid valve designed to control compressed air in systems operating at 35–150 psi. The part number references the HHB4DD37D1D variant, with the 02-BLK designation identifying its configuration. Manufactured by Parker Hannifin, this valve provides precise, reliable solenoid actuation for industrial automation applications that require controlled airflow within the 35–150 psi range.
