Extend Valve’s Life. Valve Control for Liquid Filler or Nitrogen dosing.
Air Cylinders and cam driven filler valves are difficult to changeover and have little or no adjustability during the actual filling process. Spring return slamming of the valve reduces valve life.
Valves, whether liquid filler or nitrogen dosing, have spring return that closes the valve in case of air/power loss. This spring force is lighter on gas valves like nitrogen dosing where the forces to overcome them are more within range of SMAC actuators. Liquid valves springs can have higher forces, especially if they are used to fill high viscous material like syrups. These high viscous materials require much higher spring forces to close them. The downside to using a spring return is that the associated slamming of the valve close prematurely wears out the valve sealing surfaces and reduces the life expectancy of these expensive valves. SMAC actuators can gently control this closing and extend the valve’s life.