Technology Sourcebook
www.foodengineeringmag.com/articles/95694-airlockdouble-dump-valves

Airlock/double-dump valves
May 6, 2016
Roto-Disc airlock/double-dump valves feed and measure product into and/or out of pressure or vacuum environments in 4 modes. The valves offer volumetric and gravimetric measuring capability, as well as temporal and manual control.
Roto-Disc, Inc.; 513-871-2600; www.rotodisc.com