Oxygen Containments

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The HPE4550-1-O-CL2 cylinder fill enclosure fills one cylinder at a time. This enclosure provides increased safety during the fill process, only operating when the door is closed and locked. The HPE4550-1-O-CL2-S is designed to contain the destructive force of an accidental cylinder failure or hose rupture, while allowing the force of the rupture to be vented away from the operator.

The Class 2 Containment from HYPRES is NFPA 1901 compliant. A rupture test was performed by a third party certified licensed engineering testing facility. The rupture test followed NPFA recommended guidelines for a rupture test.

Standard Features:

  • Safety Interlock System
  • Manual ½" thick door locking bar
  • Teflon slides to protect cylinder from scuffing
  • (1) Connection for storage cylinders
  • (1) Oxygen clean fill hose & fill adapter
  • (1) Panel valve to control the fill process
  • (1) Fill gauge to monitor the fill process

Construction of Fill Station:

  • Drawer contains ¼" steel plate on all four sides
  • Front of drawer contains additional ¼" steel plate
  • Outer cabinet contains ¼" steel plate on all four sides for ½" steel protection on all four sides
  • Zinc rich powder coat finish provides up to 2000 hours protection from extreme environmental exposure


  • 90° door opening for truck mount units
  • Oxygen management panel
  • Access Control System

Dimensions: 20.5"W x 23.5"D x 38"H (Add 4" to height for stationary containment)
Approx. Weight 400 lbs.

Oxygen Cleaning Process

HYPRES has developed an oxygen cleaning process that conforms to the requirements of CGA and ASTM and is one of the best processes available.  Utilizing a brand-name Ultra-Sonic Cleaner and a Black-Light Detection System for Quality Assurance, this process meets or exceeds the published requirements of the Compressed Gas Association (CGA G-4.1) and the American Society for Testing and Materials (ASTM G 93).

Safety Feature

 Safety Interlock System prevents SCBA or SCUBA filling unless the front access door is completely closed and locked in place. All air control components are located inside the compartment. The carriage design "tilts" toward the operator whenever the door is opened. This facilitates loading and unloading cylinders and minimizes operator fatigue.

Fabricated by an ISO 9002 Company, Laser Cut, Robot Welded and Zinc Powder-Coated. NFPA 1901-71, 23.9.1-4 CERTIFIED BY LICENSED ENGINEERING TESTING FACILITY.