The Hydratron Double Acting Air Driven Gas Booster is a reciprocating, positive displacement gas pump with a directly coupled, integral linear reciprocating air motor, designed to generate high pressure gas output. With double acting models the pressure increase is made possible by means of the area ratio between the larger diameter air drive piston directly connected to two smaller diameter gas pistons having the same diameter as each other. The reciprocating action of the gas booster draws gas at low pressure into the booster then displaces the gas at a higher pressure output from the booster into a closed system. On double acting models the inlet gas pressure is used to provide additional energy allowing greater output pressures and higher flowrates to be achieved. All Models can easily be incorporated into easy to operate Standard System gas power/transfer units.
Key Features

Hydratron Double Acting Air Driven Gas Boosters offer many desirable features:

Ability to stall at a predetermined pressure and hold this fixed pressure without consuming power or generating heat.
Energy saving mechanism using the inlet Gas pressure to assist the air drive motor.
No risk of flame or spark.
Infinitely variable speed/output flowrate control.
Infinitely variable output pressure control.
Easy to apply automatic controls.
Standard models are suitable for Air, Nitrogen & Helium. Design options are available for more hazardous gases.
No limit or adverse effects in continuous stop/start applications.
Proven reliability, easy to maintain and robust.


Air Motor:
Mainly Anodized Aluminium, Stainless Steel and nitrile seals.

Hydraulic Section:
Aluminium Bronze, Stainless Steel and Nitrile seals are standard.
Performance Data
Model Max Output Pressure
@ 100 psi (7bar) Air Drive Displacement/
Stroke Max Compression Ratio Supply Pressure to Achieve Max Output Pressure Actual Output Pressure (Stall Condition)
Psi Bar Cu Ins cc’s Psi Bar
GBD33 5700 393 15.6 255.7 15:1 2400 166 33PA+PS
GBD66 9000 621 8.0 131.1 15:1 2400 166 66PA+PS
GBD118 14200 979 4.5 73.8 15:1 2400 166 118PA+PS
GBD186 21000 1448 3.0 49.2 15:1 2400 166 186PA+PS
Model Number Inlet Pressure Outlet Pressure Flow
Psi Bar Psi Bar SCFM N Ltr/min
GBD33 1000 69 2000 138 31.30 886
GBD66 2000 138 4000 276 31.50 891
GBD118 2000 138 6000 414 20.40 577
GBD186 2500 172 10000 690 16.40 464

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