Automatic Filling Station

The AFS-01 is an automatic shut off liquid nitrogen dewar filling station for standard liquid cylinders.

The AFS-01 is designed to fill portable low pressure liquid nitrogen dewars from a pipe system or bulk tank. The AFS-01 uses a cryogenic sensor to detect a “full” condition. Once full, cryogenic valves shut off the fill cycle maintaining the fill pressure of the liquid cylinder. The liquid cylinder is ready for immediate use.

Benefits

• Reduce Losses – Eliminate overfilling and loss of LN2.
   
• Improve Employee Safety – Create a safer work environment with fill shut off timer, vent safety interlock, and emergency stop.
   
• Workforce Efficiency – Eliminate wasted labor and downtime.
   
• Cost Savings – Save money by eliminating the need for dewar deliveries.

Features

• Easy to Operate – Allen Bradley PLC controls. Simply, start the process and it will run itself.
   
• Adjustable Settings – Adjustable timeout timer and cryogenic sensor threshold.
   
• Visual Alerts – Status indicator light and audible alarm contact.
   
• Safety – Vent interlock, max fill timer, EMO switch, and fail close valves.
   
• Indoor or Outdoor Installation – Fill liquid cylinders where it is most convenient.