Large DOT Cylinders
Leland now offers a large range of puncture type welded closed gas filled cylinders to North America. These large cylinders begin at 86g CO2 fill and go all the way to 440g. The puncturable ends are threaded to 1/2-20UNF2A to allow use with standard life jacket style inflators. Manual and auto inflators easily puncture these cylinders
Mini-life rafts for the US Army, USCG and US Navy are just one use where a welded closed ZERO leakage gas filled cylinder is specified. Excessive G loads, shock, and harsh salt environments are the standard criteria for these DOT approved pressure vessels. Although they meet the refillable safety standards as well, the "disposable" DOT approval is an economic advantage to the OEM, allowing new and useful products to hit the streets at a lower per unit cost with the reduction of complicated valves, hydrostatic tests, etc.
Verification of gas charge is easily accomplished by weighing the cylinder and comparing the indicated weight to the actual. Welded closed cylinders are a reliable energy source, recorded periodic inspection is important as a further step to provide a statistical representation of quality to the end user.
Lighter, Stronger, More Gas
Options for these cylinders include:
They are approved for all modes of transportation and are considered hazardous material when transported by ground, air, or sea. Other sizes are available as well as filling with any non toxic, non flammable gas. Some oxidizer gases cannot be welded in. Usually, we can fill to pressures up to 2750 psi max. Please call our Technical Sales Department.