High Pressure and Acetylene Cylinders
 

Light Weights

HC-Series Cylinders are advanced, computer-designed steel cylinders that lead the global gas industry in capacity-to-weight ratios.  These high strength, light weight alloy cylinders feature higher gas capacities that allow for longer service between filling cycles- delivering reduced costs for handling and maintenance.  Built to exacting standards for years of durable service, HC-Series cylinders are 100% ultrasonically tested and feature leak-before-break pressure vessel technology.

 

Lightweights diagram

 

HC-Series Ultra High Pressure Cylinders
Model DOT Specification Tapping

Nominal Dimensions

 Water Volume Service Pressure Test Pressure
I.D. O.D. Length Weight
(inches) (inches) (inches) (lbs.) (cu. in.) (psi) (psi)
(mm) (mm) (mm) (kg) (liters) (bar) (bar)
HC-4500 SP 9421-4500 (***) 8.75 9.31 51.00 144 2750 4500 6750
222 236 1295 65.3 45.1 310.3 465.4
HC-6000 SP 9909-6000 3/4-14 NGT 8.50 9.28 51.00 188 2640 6000 9000
216 236 1295 85.3 43.3 413.7 620.5
*** NOTE: HC-4500 cylinders are furnished with 3/4-14 NGT "24 THREAD OVERSIZE" inlet thread unless otherwise specified.
- HC-Series cylinders are furnished complete with neckrings, caps, applicable DOT markings, painted one standard color and certified by an independent inspection agency.  [Neckrings are caps are configured 3-1/2 diameter, 11 threads per inch otherwise specified.]
- All HC-Series cylinders are 100% ultrasonically tested.
- UNDER NO CIRCUMSTANCES ARE THESE CYLINDERS TO BE FILLED TO A PRESSURE EXCEEDING THE MARKED SERVICE PRESSURE AT 70 DEGREES F.
Gas Service CGA Recommended Valve Outlet Connection Number Approximate Capacity (cubic feet) At Service Pressure
HC-4500 HC-6000 HC-4500 HC-6000
Air 347 702 444 509
Argon 680 677 500 581
Helium 680 677 434 525
Nitrogen 680 677 431 494
Oxygen 701 N/A 500 N/A

NOTE: Valve outlet connections are based on CGA Pamphlet V-1 (Dec. 1994) and addenda-Errata (Jan. 1996)
NOTE: Gas capacities are based on NBS Technical note 1079 issued June 1985.

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