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How the
GREASOMATIC works
Is a self-ejecting canister of lubricant designed to screw into a
grease nipple socket or other lubrication point, and discharge its
content of 120 ml of lubricant in a controlled continuous flow, for a
preselected period of between one month and twelve months. It is
completely self contained and needs no pumps, motors, electricity or
compressed air. Once fitted and activated it will work without attention
until its allotted lifespan is over.
Each GREASOMATIC contains its own unique chemical expulsion unit.
This has no springs or mechanisms but relies on an unvarying law of
nature. Built into the top of each GREASOMATIC is a flexible rubber
expansion chamber containing a liquid electrolyte and a galvanic
element. The unit is activated by injecting the galvanic element into
the electrolyte. The resultant electro-chemical reaction generates a
steadily increasing amount of gas, which gradually expands against a
piston, to extrude the lubricant slowly but surely into the bearing
to which the GREASOMATIC is fitted. The chemicals and gas remain
hermetically sealed within the expansion chamber so that no
contamination of the lubricant can occur, even after the unit itself
is spent. During the working life of the GREASOMATIC, an indicating
ring on the ejection piston shows through translucent windows in the
body to enable the discharge state to be monitored.
This is provided to guard against the possibility of the GREASOMATIC
being fitted unwittingly to a bearing with blocked greaseways. Should
the pressure built up by the GREASOMATIC prove insufficient to clear
the blockage, the valve will open to allow the lubricant to escape
and prevent excessive pressurisation of the GREASOMATIC. The
exudation of lubricant around the GREASOMATIC will serve as a warning
that the greaseways are blocked and that no lubrication is taking
place.
Discharge control
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An
unactivated GREASOMATIC
A working
GREASOMATIC
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