ASCO U8401B101 C01 Solenoid Valve

The ASCO U8401B101 C01 Solenoid Valve is a compact 1/4-inch, four-way, four-position aluminum-bodied valve from ASCO’s Series 401 lineup, actuated by a single 120V coil. It is a direct-acting, single-solenoid valve with an explosion-proof, watertight coil enclosure designed for demanding environments and for compressed air or inert gas service. The valve body is aluminum, and seals are NBR, while the port size and orifice are both 1/4 inch, supporting consistent flow in small-form pneumatic circuits. It is rated for operating pressures from 20 to 150 psi for air or inert gas, making it suitable for typical factory air systems. The coil construction is a molded epoxy open-frame design, with several voltage variants available in the U8401B101 family, including 120V at 60 Hz and 110V at 50 Hz, as reflected in catalog references such as U8401B101-120-60 and U8401B101-110-50. This valve is designed for four-way pneumatic control, enabling bidirectional actuation of a single pneumatic actuator and exhaust management in automation and process-control installations.