Processing Magazine

Rotary Airlock Valves

January 1, 2013

Ideal for sanitary applications such as food processing, pharmaceutical processing and chemical or plastics applications, the Run-Clean™ Series of rotary airlock valves are designed with multiple features that reduce material buildup inside the valve housing that can occur during operation. Ideal for sanitary applications such as food processing, pharmaceutical processing and chemical or plastics applications, the Run-Clean™ Series of rotary airlock valves are designed with multiple features that reduce material buildup inside the valve housing that can occur during operation. These features include: angled surfaces and rounded edges inside the housing to eliminate dead zones and ensure optimal material flow; factory-applied internal surface coatings, such as tungsten, to prevent surface wear imperfections where material can buildup; glandless, sleeve-style shaft seals that prevent contaminant migration into the housing; and stainless steel housings cast in North America to ensure superior strength in the composition and solidification of the housing’s metallurgy. The stainless steel housings are then CNC-machined to precise tolerances; and, with internal surfaces polished to a No. 4 finish, the ACS Valves design eliminates internal crevices and joints, common with conventional cast housings and bolt-together designs, where contaminants can accumulate. By reducing the accumulation of material inside the valve during operation, the ACS Valves Run-Clean™ Series reduces total time for cleaning, validation, and inspection of the valve, and therefore, speeds the return to service of the valve.