Progressive Products offers a range of tight tolerance, high-quality, American-made airlock valves for pneumatic conveying systems. All of the valves feature heavy-duty cast iron construction, relieved 8-vane rotors, premium life bearings, maintenance-free seals, and purge-ready endplates. Both the SD and HS series valves are suited for general, long life usage. Airlocks can be customized to fit your application requirements. Options include hardened tips, reduced capacity rotors, high temperature, and chrome interior, and Nedox coating. Valves are available in 8- through 16-in. sizes in carbon steel.
Progressive Products Inc., Pittsburg, KS 888-235-1732 www.progressiveproductsinc.com