Webpage Updated Saturday May 23, 2020
REFILLING PORTABLE OXYGEN EDGE CYLINDERS – BUYING WELDING OXYGEN
Buy compressed welding oxygen at your local welding supply shop or any welding supply in the world, like welders. We use two sizes of commercial non-disposable high pressure aluminum oxygen cylinders (9 lb and 3 lb) with 540 CGA Global valves with Lexan hand wheels. A full fill is 2200 PSI, less than 2200 PSI is only a partial fill.
Welding supply shops will refill your small portable OE cylinders for $12-$15 or with our refilling adapter, you refill your cylinder for pennies; you refill your OE portable cylinders at home or any place in the world.
All OE oxygen cylinders must be hydrostatic tested every 5 years, a high pressure cylinder safety issue. The hydrostatic testing date is stamped into the metal on the cylinder shoulder. The Hydro mark for March 2014 may look like this 03 ∆ 14 or 03 ◊ 14.
You refill your OE cylinder yourself for pennies, not $, in minutes at your convenience at home.
Contact your local welding supply shop to rent a large oxygen 250 or 281 cu. ft. compressed oxygen cylinder for $4 month or buy the large cylinder. Return empty large cylinders to the shop and exchange for full cylinders.
You buy the oxygen gas contents $7-$13 (a large 250 or 281 cu. ft. O2 cylinder @ 2200 psi is “full” – OE cylinders are also “full” @ 2200 psi). Take the large empty cylinder back to the shop and exchange it for a full cylinder when necessary. Some welding shops will deliver the large cylinder to you. This is the most economical method of buying source oxygen that ensures minimal operating cost in the long run.
CAUTION: THIS COMMERCIAL CYLINDER REFILLING PRACTICE IS COMMON – Many bait shops, coastal bait dealers and fishing tackle shops will also refill your portable OE oxygen cylinder, BUT many also consider 1000 – 1500 PSI a “Full Fill.” Be aware that these low filling pressure are “short-fills” of which you are often charged a “full fill” 2200 PSI price. Always connect your O2 regulator to the cylinder and confirm the filling pressure – you may or may not be getting what you assumed is a “full fill” which is 2200 PSI.
Your OE regulator will also connect to the large oxygen cylinder 540 CGA valve when you need to keep your bait oxygenated at home overnight or several days. Reconnect the OE regulator to the small OE cylinder when you need mobility the next morning.
BUYING OXYGEN – OE-D SYSTEM DISPOSABLE O2 CYLINDERS
Use for Emergency livewell oxygenation when live bait or tournament fish are in crisis or for small amounts of live bait (a handful of shiners – 3-4 oz of live bait)
The OE-D oxygen system uses BernzOmatix® disposable oxygen cylinders. Buy these oxygen cylinders off-the-shelf at many locations; Ace Hardware, Home Depot, Lowe’s, and most plumbing supply stores. Cylinders are sold as singles ($5-$8) or buy economy 12 packs ($40-$50). If 12 packs are not stocked, most store managers will place a special order for you. BurnzOmatic oxygen cylinders contain 99.9% oxygen @ 500 psi (1.1 cu. ft. gas @ 70 F. Empty cylinders disposal – any dumpster. No wrenches needed to connect the adjustable brass regulator to the BernzO cylinder. Cylinder and regulator connections are left-hand threads. The OE-D regulator will not connect to refillable OE cylinders with CGA 540 valves (right-hand threads).
OE system Components are Cleaned and “Certified for Pure Oxygen Service”
Individual OE components may be purchased separately
9 lb OE oxygen cylinder 29.5” X 4.5” – full @ 2200 psi – 189 hr use – refill cost 75¢ with your refilling adapter.
3 lb OE oxygen cylinder 15.5” X 3.0” – full @ 2200 psi – 47 hr use – refill cost 15¢ with your refilling adapter.
Cylinders refilled @ welding supply $12-$15
*** Please call us immediately from the welding shop if you ever have any problems buying commercial welding oxygen or having your OE cylinder refilled at a welding shop. (409) 267-6458
*Did you know that the only difference between a medical compressed oxygen gas and a commercial welding oxygen gas is the fixed label attached to the cylinder wall and the cost of the gas? The gas purity and humidity (water vapor content) is the same.
Compressed aviation oxygen is required to be dryer (less water vapor content) than medical and commercial welding oxygen, the purity is the same. Aviation oxygen must be dryer (contain less water vapor) because freezing temperatures. Extremely cold temperatures at high altitudes can cause the water vapor in the oxygen to freeze oxygen regulators causing oxygen life support systems to malfunction and fail in flight.
Extreme cold is also issue for high altitude mountain climbers that use supplemental oxygen.