Air Purge Kit – NEMA 4 – 8 Inch Airlocks


This NEMA-4 Rated Rotary Airlock Valve Air Purge Kit use plant air to prevent product from coming in contact with the shaft seals, which extends the life of the Rotary Airlock valve.

This kit is suitable for standard 8 inch Prater Airlock Valve models (DCS-8, BAV-8, PAV-8, PBT-8, QTA-8, SAV-8).


The 5AN090015 Air Purge Kit, for 8 inch Prater Rotary Airlock Valves, provides clean dry air to the lantern rings and keep product away the packing seals which extends the life of the rotary airlock valve. Considered to be beneficial in almost all applications. This kit is designed for use with Internal Operating (Product) Temperature up to 250°F and External Operating (Room) Temperature up to 150°F. Higher temperatures require modifications. Contact us for more details.

Note: Product image is representational and the actual product received may vary slightly in appearance from the photo displayed.

Parts Included

  • Solenoid (NEMA-4)
  • Air Filter/Regulator
  • Mounting Bracket
  • Air Flow meters
  • Air fittings
  • Tubing
  • Miscellaneous Hardware

Not Included

Lantern Rings: Lantern rings are required for Air Purge operation. Check your original build to see if Lantern Rings were included. Lantern Rings can be purchased separately if required.

Additional information

Weight 8 lbs
Dimensions 16 × 12 × 10 in