|
| |
2-4.7
Filter-Separators (6 Units)
NSN 4330-00-177-8485 GFE
a.
Description:
1)
General. The 350 gpm optimum performance filter-separator is a two stage vertical-type unit designed to remove
undissolved water and solid contaminants from fuels. The filter-separator has a water level indicator (sight gage), a
manual water drain valve, and a differential pressure indicator. See Fig. 2-20.
2)
Filtration, Coalescence and Separation. The first stage consists of fluid pressure filter elements which perform a
dual function. Contaminated fuel under pressure enters the filter-separator through the inlet line manifold and into and
through the filter elements which filter out all solids and coalesces the finely dispersed water into droplets of sufficient
size to be separated. The second stage consists of teflon coated screen lined canisters (18 per unit). The fuel flows
through the teflon coated screen where the water droplets are stopped and pulled downward by gravity to the sump for
subsequent draining. Clean fuel then flows into the top of the outlet tube and out the outlet connection at bottom rear of
the unit.
3)
Water Drainage. The level of accumulated water in the sump is indicated by a ball float in the sight gage, water
is manually drained through a valve on the bottom of the sump.
4)
Water Detection. A water detector kit adapter, NSN 4730-01-013-7590 (not an integral part of the filter-
separator) is installed immediately downstream of each filter separator to permit sampling of the exit stream to check fuel
quality and the performance of the filter-separator. See Fig. 2-21.
5)
Capacity. 350 Gpm
6)
Maximum Operating Pressure. 150 psig
b.
Function and Location
The filter-separators are installed in the TPT after the fuel storage tanks and before the fuel dispensing assembly. They
are part of the fuel dispensing system. This assures that only clean, dry fuel is dispensed. They are located as follows in
numbers noted:
Single TPT, Three Units:
Location
No.
Equipment No.
Before Diesel Dispensing Assembly
2
FS1 D & FS2D
Before Jet Fuel Dispensing Assembly
2
FS1J & FS2J
Before MoGas Dispensing Assembly
2
FS1M & FS2M
c.
Detailed information on the filter-separator is contained in Department of the Army technical manual TM 5-4330-
211-12. It is important that this manual be studied prior to installation, operation or maintenance of the unit.
2-23
|
