Allen-Bradley 407B43S3S3-AA4 Pneumatic Solenoid Valve

407B43S3S3-AA4 is a dual‑solenoid, five‑way (5/3) SAE pneumatic valve in the Automatic Valve A04 series, configured with 3/8‑inch ports and 120 VAC coils (AA4). The aluminum body houses two weather‑proof solenoids that drive the valve through three positions, enabling three distinct flow paths to control a pneumatic actuator. Seals are NBR, and the valve handles inlet pressures from 35 to 150 psi, with a flow coefficient around Cv 1.9 for 3/8" ports, supporting moderate actuation speeds in standard industrial air systems. This model is commonly used to drive cylinders or pilot other valves in automation lines, and its dual‑coil arrangement allows independent energization for straightforward sequencing or position control. Part of the A04 SAE family, it integrates with typical control schemes and relays that provide 120 VAC coil power, making it suitable for installations where a robust, compact 5/3 valve is required.