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Tobul AccumulatorTBRG30 Series
TBRG30 Series
A standard Hydro-pneumatic accumulator can provide approximately 25 t0 30% of its fluid capacity in usable volume (e.g. approx. 38 gallons of capacity in a piston-type to obtain 10 gallon of fluid volume, approx.. 42 gallon of capacity in bladder-type to obtain 10 gallon of fluid volume)
The size of the accumulator can be reduced, though, by providing additional gas volume to the accumulator in order to expel a greater percentage of usable fluid volume from unit (e.g, with piston-type, the additional of approx. 28 gallon of pressurized gas capacity will allow the reduction of the necessary accumulator volume to 14 gallon and still receive 10 gallons of usable fluid volume; with Bladder-type, the additional of approx. 31 gallons of pressurized gas capacity will allow the reduction of the necessary accumulator volume to 11 gallons and still receive 10 gallons of usable fluid volume) Note: above approximations based on 3000 PSI max pressure/2000 PSI min pressure.
Since gas bottles are simply pressure vessels utilized to store a quantity of pressurized gas (normally nitrogen) without an internal bladder or piston, the effective cost per gallon of volume is less than the accumulator itself, thereby making gas bottles a cost effective method of supplementing fluid volumes.
Cylindrical Carbon Steel
Gas Bottles may be fabricated similar to piston-type accumulator (Less the internal piston), providing a wide variety of available capacities and physical dimensions.
This allows for extensive range of capacities, much larger than available with forged shells. The versatility in application provides the system designer the ability to eliminate banks if multiple smaller capacity shells with a minimum number of higher volume fabricated bottles. This is especially valuable in applications where space (e.g., physical dimensions) and weight are critical.
