Sprague Products air-driven hydraulic pumps
A variety of Sprague Products hydraulic
pumps is offered for various liquid output pressure up to 33,500
psi (2311 bar). Sprague Products pumps service water, oil and most
corrosive chemicals. Sprague Products pumps are rugged, service-proven
and virtually maintenance-free.
The Sprague Products positive-displacement type pump
converts air inlet pressure to hydraulic output pressure. The pump
uses low pressure air to act on a large area piston to produce high
hydraulic pressure with a small area piston.
In operation, the Sprague Products pump reciprocates
rapidly until the system liquid pressure nears the desired level,
then slows to a stop when the liquid pressure equals or balances
the air pressure. This liquid-air pressure balance is maintained
indefinitely in a holding condition with minimal energy consumption
and with no increase in fluid temperature or parts movement.
In contrast, a motor-driven pump in a holding condition
must continue to operate to maintain a pressure level. Excess liquid
must be bypassed or recirculated back to the reservoir, resulting
in energy-loss, heat build-up, and the need to bypass components
and a larger reservoir.
The Sprague Products pump is efficient in operation
and simple in design, providing the user with cost-effective and
energy-saving benefits for many industrial and research applications
when compared to other types of hydraulic pumps.
The Sprague Products air-driven
pump offers economical advantages for the pressure testing of hoses,
pipes, valves, fittings and other hydraulic vessels and products.
The time-saving and performance advantages offered by Sprague Products
pumps allow routine production testing to be converted from tedious
hand-pump methods to automatic and precision testing methods.
The Sprague Products air-driven pump delivers high
pressure liquids required by production machinery for holding, clamping,
forming, shearing, punching, etc. Example of application is a hydraulic
press where long holding cycles are necessary or where the work
stroke is short and a high force is required. High and low volume
Sprague Products pumps can be combined to produce a combination
of high speed and high force at low cost.
Eliminates central power source
Because Sprague Products air-driven pumps are
relatively small, they can be installed directly on individual machines
or test equipment in several or separate locations as direct power
sources. Pumps so mounted eliminate need for a central power system,
long plumbing runs and excess hydraulic power capacity.
Unlike motor-driven pumps, Sprague
Products air-driven pumps are non-arcing and non-sparking, and can
be used safely in hazardous or confined areas.
Sprague Products pumps do the same job as other
air-driven pumps but with fewer parts and seals, and therefore less
To find out more about these products and many
others, please contact Flow
Products, Inc. for a free catalog