Schneider Electric (Barber Colman) AL-181 Air Valve

The Schneider Electric AL-181 Solenoid Air Valve is an industrial-grade 120 Vac air valve engineered for precision control in pneumatic systems. Also identified by the legacy Barber Colman 2368-402 part number, this 3-way solenoid air valve features a robust plastic body designed for standard HVACR and commercial logic applications. Operating at a 120V AC 60Hz frequency, the unit draws a nominal 5.7W and manages a flow rate of 0.3 scfm at 30 psi maximum operating pressure. It is equipped with an integrated NEMA 1 junction box and 18-inch electrical leads to facilitate direct field wiring. The valve body utilizes 1/4 inch barb fittings, ensuring a secure connection to standard O.D. plastic tubing. Built for high-cycle reliability in temperatures between 40°F and 130°F, this direct-acting solenoid valve is the professional choice for contractors maintaining pneumatic control sequences.

• Interchangeable Design: Functionally identical to the Barber Colman 2368-402, ensuring seamless drop-in replacement without piping modifications.
• Ease of Installation: Pre-wired with 18" electrical leads and a built-in junction box to reduce labor time for field technicians.
• Pneumatic Compatibility: Features 1/4" barb connections that integrate easily with standard pneumatic logic and control air lines.
• Durability: The corrosion-resistant plastic construction is optimized for long-term service in commercial mechanical rooms.

Is the AL-181 compatible with 24V control systems?
No, the Schneider Electric AL-181 is specifically rated for 120 Vac. For 24V applications, a specific low-voltage alternative like the AL-190 should be sourced.

What is the maximum pressure rating for this air valve?
This pneumatic solenoid valve is rated for a maximum operating pressure of 30 psi, making it suitable for most standard HVAC control air systems.

Does this valve support normally open or normally closed configurations?
As a 3-way valve with three 1/4 inch barb ports, the AL-181 provides common, normally open (N.O.), and normally closed (N.C.) port connections to meet various sequence requirements.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.