3-38. FILTER ELEMENT (#).
This task covers:
Tool Kit, General Mechanics
Filter element MIL-F-52847 Type II
Filter element MIL-F-52847 Type III
Differential pressure as used throughout the operat-
ing procedures refers to the difference in pressure
between the inlet and outlet.
in the filter elements result from elements becoming
clogged with particles and other contaminants which
impede the flow of fluid.
As fluid flowing through
an element is reduced, pressure increases on one side
of the element (inlet side) and is reduced on the
other side (outlet).
The difference between these
pressures is referred to as differential pressure.
Replace prefilter element when the differential pres-
sure in the stage reaches 30 psid (2109.2 gm sq cm)
and coalescer element when differential pressure
reaches 25 psid (1757.7 gm sq cm).
Inspection is performed by determining differential pressure