Alkon BB331-31-25-5 Directional Control Air Valve

Alkon BB331-31-25-5 Big Bazooka directional control air valve is a heavy‑duty, solenoid‑operated 3‑way valve designed for high‑flow air control in demanding industrial pneumatic systems. This single‑solenoid valve includes a non‑locking manual override and a 3‑way normally closed configuration, with port 1 as supply, port 2 as outlet and port 3 as exhaust; it uses 2‑1/2 in NPTF ports. It operates on 24 VDC and is rated for air only, with a working pressure range from 30 to 125 psig. The valve body offers a Cv around 45 and a maximum flow specification of roughly 70–2150 SCFM at 80 psig, with a minimum orifice size of 2.06 inches. External pilot options are available for low‑pressure or vacuum applications. This model is part of Alkon’s Big Bazooka line and is intended for heavy vehicles and trailers’ lift‑axle and suspension control, or other large‑volume pneumatic control tasks where high flow and reliable actuation are required.