Alfa Laval / Koltek 2-Way Shutter Valve. Model: AH10-GC-3. 316L Stainless Steel. Actuator Function: Manual. Two-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. Overall dimensions: 14 ½ in. L x 6 in. W x 9 in. H. (ACN30).