Alfa Laval 25-428-S Pneumatic Actuator

Alfa Laval 25-428-S Pneumatic Actuator is a stainless-steel, spring-to-air actuator designed to drive Alfa Laval seating valves in hygienic processing systems. It uses compressed air to move the valve plug, with a built-in spring that returns the actuator to its default position when air pressure is removed, delivering a fail-safe result for shutdowns. Sized for Alfa Laval valve installations in the 1.5 to 3 inch range, the 25-428-S is commonly paired with Alfa Laval Unique SSV single-seat valves as part of a compact, sanitary valve assembly. The unit provides downward movement with a spring-return configuration and is intended for reliable pneumatic control in sanitary environments, where durable construction and cleanability are essential. This actuator supports standard industrial pneumatic control schemes and integrates with the modular components of Alfa Laval’s valve offerings, enabling precise actuation and repeatable seating for reliable flow control in dairy, beverage, and pharmaceutical processing lines.