Round or Square Flange Airlocks

Standard Duty (SD) Drop-Thru rotary airlock feeders are designed for economical and reliable material metering and airlock service.



Ideal for pollution control applications in wood, grain, food, textile, paper, tobacco, rubber, and paint industries, the Standard Duty Series works beneath dust collectors and cyclone separators where temperatures do not exceed 250°F and pressure differentials to 15 PSI.  Standard Duty valves are available with square or round flanges; they feature rugged castings and larger shaft diameters than competition. Cast Iron, 304SST, 316SST and Ni-hard construction are available.