Gas Boosters

Comparing various specifications published for gas boosters, including the models we sell, can be misleading. The manufacturer published specifications are often the ideal maximums and minimums, and don't address duty cycle or the specific type of gas being boosted. Do not expect any booster to consistently deliver the ideal values. There are many other considerations, especially at low drive air volume or pressure, or low supply gas pressure. For example, with a supply gas pressure of 300 psi most boosters will stall at an output pressure of about 2,800 to 3,000 psi. On the bright side, our fill time charts are the actual observed real deal.

Best practice when boosting oxygen is to keep a low ratio between the source/target pressures and reduce the cycle speed as the ratio increases because rapid compression of oxygen also increases the risk of adiabatic combustion. Dive Gear Express recommends not exceeding a boost ratio of 6:1 when boosting oxygen. It may be tempting to pull the maximum amount of gas out of the supply cylinder, but boosting low pressures can very quickly reach high boost ratios. For example, boosting from a {500 psi | 35 bar} source to a target of {2640 psi | 180 bar} is a relatively low boost ratio of about 5:1. However, a source of {300 psi | 20 bar} almost doubles the ratio to about 9:1 and an only slightly lower source of {150 psi | 10 Bar} doubles again to an 18:1 ratio.