Progressive Products offers a range of tight-tolerance, high-quality, American-made airlock valves for pneumatic conveying systems. All 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 620-235-1712 www.progressiveproductsinc.com
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