Alfa Laval Koltek 3-Way Air Actuated Shutter Valve. Model: AH E11-GC-E-3-T316. Stainless Steel. Actuator Function: Air to Air, 180°. Actuator: Koltek Model K52/531. Actuator Material: 316 Stainless Steel. Tri-clamp connection, designed for use in the food, chemical, pharmaceutical and other industries where sanitary designs are required. Koltek valves meet 3A standards and are USDA approved for dairy, meat and poultry plants. Inlets/outlets: (2) 3 in. "S" line, (1) 3 in. threaded male connection. Overall dimensions: 9 ½ in. L x 8 ½ in. W x 7 in. H. (ACN58a).