Sizing an Oxy Con to my torch

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Item #: 1563
Quantity Available: 100

100 in stock

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The use of Oxygen Concentrators with Bead Torches
Oxygen concentrators predominantly used with bead torches tend to be “recycled” units whose initial application was to supply oxygen to patients in their homes and allow a level of mobility for them. The oxygen flow levels are therefore low.
Bead torches that use oxygen and a fuel gas (predominantly LPG), all have optimum operating pressures to create the range of flames required to work glass. The greater the number and size of holes in the tip will determine the mixed gas flow required – at the manufacturer’s given operators pressures.
Take for example the Betta torch manufactured by Bethlehem Burners, USA.
In the operating instructions for the torch, the manufacturer lists the gas pressures as the following:
Gas:             1.2 – 3 psi
Oxygen:       4 – 8 psi
If your oxygen concentrator can operate at these oxygen pressures then you are at the first stage. Next find the flow figures for the torch. In this case the flow figures are measured in ft3/hr and l/hr. 4.4 ft3/hr and 11.7 l/hr respectively. Most oxygen concentrators will express their flow specifications in litres per minute (lpm). To convert 11.7 l/hr to lpm, simply divide by 60 (60 minutes). The Betta therefore requires a flow rate of 0.195 litres per minute.

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