Mixproof valves provide flexibility in hygienic flow processing by making it possible to handle two different fluids at the same time without risk of cross-contamination. The mixproof valves use two independent plugs and seals. The large-particle valve design can handle fluids with high viscosity or large particles such as lotions, soups and yogurts. The valve is designed with large openings and handles particles up to 1.772” (45 mm) dia. to minimize pressure loss.