Alfa Laval 25-428-S Actuator

Alfa Laval 25-428-S Actuator is a stainless-steel, pneumatic actuator designed for Alfa Laval Tri-Clover 700 Series single-seat hygienic valves. It converts compressed air into linear motion to open and close the valve, enabling precise control in demanding sanitary process lines. The model is specified for 1.5– to 3-inch nominal valve sizes and uses a long-stroke configuration (10/20) to provide extended travel for accurate positioning and reliable shutoff in tight tolerances. This actuator carries Alfa Laval part number 25-428-S, with an alternate reference 751681, and is commonly used in dairy, food and beverage, and other clean-process environments where robust corrosion resistance and easy washdown are important. When paired with Alfa Laval’s 700 Series seat valves, the 25-428-S supports compact, sanitary valve assemblies that minimize dead space and simplify mounting in confined installations. The stainless construction helps withstand frequent cleaning and sanitizing cycles typical of hygienic processing plants, while the actuator’s compact form factor suits tight spaces often found in process lines. In sum, the 25-428-S provides proven Alfa Laval actuation performance for reliable, repeatable valve operation within the company’s hygienic valve ecosystem.