Gas Boosters

We offer two different oil-free oxygen compatible gas boosters suitable for applications with diving; both are compressed air driven, air cooled, reciprocating piston, single action single stage type. The DGX Gears X-30 is a value priced oxygen booster that is suitable for light duty usage. The faster Haskel MSB-9000 is a premium quality oxygen booster manufactured in the USA that is suitable for heavy duty usage. A benefit of the Haskel booster is additional cooling provided by routing the cold exhausted drive air through a jacket surrounding the gas compression barrel.

19 Items

Set Descending Direction
  1. DGX X-30 Gas Booster
    DGX Gears X-30 Gas Booster
    $1,899.00
  2. Haskel Mini Sport Booster
    Haskel MSB-9000 Gas Booster
    $3,649.00
  3. DGX Deluxe Fitting and Hose Kit w/ Analog Gauge
    DGX Gears Deluxe Fitting and Hose Kit for Booster
    As low as $909.00
  4. Deluxe Gas Blending and Transfill Kit ADDON for MSB-9000
    DGX Gears Deluxe Gas Blending and Transfill Kit UPGRADE for Booster
    $339.00
  5. Supply Pressure Gauge with Quick-Disconnect Tee
    Supply Pressure Gauge with QD Tee
    $129.00
  6. Bulk Gas Storage Cylinder Valve Adapters
    Bulk Gas Storage Cylinder Valve Adapters with QD Stem
    $79.00
  7. SCUBA DIN Adapter with QD Stem
    SCUBA DIN Male with QD Stem
    $79.00
  8. EZ-ON Inflation Regulator System
    DGX Custom - EZ-ON Regulator Kit
    As low as $99.00
  9. Drive Gas Adapter for Haskel
    Drive Gas Adapter for Booster
    $29.00
  10. QD Cap and Plug Set
    QD Cap and Plug Set
    $69.00
  11. Quick Disconnect = 1/4-inch NPT
    Quick Disconnect = 1/4-inch NPT
    $29.00
  12. DGX Gears Booster Service Kit
    Service Kit - DGX Gears X-30 Booster - Complete
    $126.00
  13. Haskel Gas Section Seal Kit
    Service Kit - Haskel MSB-9000 Booster Gas Piston Section
    $859.00
  14. Haskel Air Drive Seal Kit
    Service Kit - Haskel MSB-9000 Booster Air Drive Section
    $230.00
  15. Haskel Gas End Check Valve Section Seal Kit
    Service Kit - Haskel MSB-9000 Booster Gas Check Valve Section
    $449.00
  16. Haskel Tool - Air Valve Extractor
    Haskel Tool - Air Valve Extractor
    $120.00
  17. Haskel Tool - Gas Check Valve Assembly
    Haskel Tool - Gas Check Valve Assembly
    $269.00
  18. Haskel MSB-9000 Maintenance Service
    Maintenance Service, Haskel MSB-9000
    $1,499.00
  19. Haskel Booster Replacement Parts
    Haskel Booster Replacement Parts
    Select Part to See Price
Tek Tip Warning Image WARNING
According to our suppliers, these products are compatible with oxygen and factory cleaned for use with oxygen. Nonetheless, the 'clean state' of this equipment applies only prior to initial use. Thereafter, periodic inspection and cleaning are a necessity. You must meticulously follow the recommendations of the US Department of Transportation (DOT), Compressed Gas Association (CGA), and other federal/state/local agencies, plus your training agency for equipment maintenance, handling, storage, labeling, filling, transport and use of compressed gases. Oxygen-related fires and explosions can result in serious injury or death. Ultimately, you must make the final decision to assume all risks associated with the use of any compressed gases.

A Gas Booster Reality Check

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.