Digital Wave Corporation (DWC) was issued Special Permit 16320 by the US Department of Transportation (DOT) after many years of research and testing programs.
![]() Internal inspection on each SCBA prior to life extension test |
![]() Monitors showing MAE test data during a live test. Video feed of cylinders in test chamber. Showing pressurization monitoring curves |
In addition to providing life extended cylinders back to fire departments the same cylinders can be used in other industries including the airgun industry. Via the Digital Wave's buyback program, end of life cylinders are purchased from fire departments who are upgrading equipment or changing brand suppliers and no longer need their SCBA cylinders. These cylinders no longer go in the landfill and are put back into meaningful service via the life extension program. Cylinders are received, inspected, recorded and warehoused at Digital Wave Corporation located in Centennial, CO. As orders are processed cylinders are retrieved from the warehouse inventory and are first thoroughly cleaned via a heated ultrasonic bath. Each cylinder is then hand cleaned to remove any stickers, surface labeling or residue. They are then internally and externally inspected to the requirements of the Compressed Gas Association's (CGA) visual inspection standards. Cylinders then go into the life extension testing program to the test requirements as outlined in SP-16320. Feel free to read for yourself the stringent requirements of the SP at the below link. Every cylinder is tested to these requirements: DOT testing requirements
![]() MAE transducers on vessels under rubber straps. Monitor in the background shows MAE data of transducers on each vessel so that pre test checks can be made of each transducer. 8 vessels tested per test round |
![]() Cylinders pulled from warehouse waiting to go into cleaning program |
Only cylinders that pass the stringent life extension requirements are labeled for continued use. These cylinders may be used up to 30 years from the original manufacture date. You will want to print a copy of SP-16320 from the above link and keep with your life extended cylinders. Fillers may ask to see this SP when they fill these cylinders. Life extended cylinders will need to be requalified at year five and ten from the life extension date found on the life extension date RIN sticker.
Life extended cylinders will have been in use for 15 years prior to their life extension date. They may have some cosmetic blemishes, minor scuffs, different OEM manufactures, different labeling under the OEM clear coat or other cosmetic irregularities. However they have many more years of use left in them!
![]() SCBAs that have been visually inspected |
![]() Cylinders that have been tested |
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If you're picking up a new air gun, our team can test and tune the equipment before it leaves the warehouse. We can even set up an optic or other equipment so you can get out shooting without the hassle. For bowhunters, our certified master bow technicians provide services such as assembly, optics zeroing, and full equipment setup, which can maximize the potential of your purchase.
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