Unsure of what Airlock size you need? Use the fields below to enter your application information to find the recommended Airlock size. Email for non-humansThank you for choosing to use Prater’s Airlock Calculator Tool. Please note: this information is general in nature. The parameters of your specific application could require an alternate airlock model. Please reach out to one of our specialists for specific recommendations. To begin, please tell me a bit more about your application. Does your airlock sit under a head of material? Yes No SkipWe suggest using 80% for fill factor. Valves that do not operate under a head of material will only deliver their target capacity if fed the same rate from the upstream system. Please continue to use the calculator tool to select an appropriate size based on target capacity. Does your airlock need to function as a metering device? Yes No SkipWe suggest using 80% for fill factor. Valves that don’t function as a metering device can be selected to meet or exceed the required target capacity. A larger model may be used if required to match a specific opening or flange pattern on the mating equipment. Does your airlock feed a pressure convey line? Yes No SkipWe suggest using 70% as the fill factor. How well does your material flow (assuming use of any material activation devices present on the bin from which they discharge to the airlock)? Good Average, Poor SkipWe suggest using 90% as the fill factor. We suggest using 80% as the fill factor You may now begin using the calculator. Please note that we recommend a size that will result in a speed of: 10-20 RPM for most application 15-20 RPM for applications used as a metering device. Choose model- Select -BAVDCSPAVPBTQTAAerated Bulk Densitylbs/cu. ftRequired Flow Ratelbs/hrRPMRPMValve Fill Efficiency%Submit Available Airlock Models Dust Collector Series Heavy-Duty PAV Quick Take Apart Series Quick Take Apart Series on Rails Blow-Thru Rotary Airlock Valve
