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Algas-SDI Operations & Maintenance Manual P/N 52632
7-59
CONTAMINANT SEPARATOR – FILTAIRE OPTIONAL
The
FILTAIRE
is a filtering device designed to trap heavy hydrocarbons
commonly present in LPG gas vapor. It also traps other materials, which may be
in the gas due to storage conditions and internal condition of the equipment.
Impurities are collected in the system and periodically removed through the
system blow down drain. Residual heavy end hydrocarbons with boiling points
higher than pure LPG are trapped by the filter and fall to the bottom for removal.
A complete
FILTAIRE
system consists of inlet and outlet connections, a blow-
down drain (5), a pressure gauge (4), a vent which is normally plugged (6), and a
bypass valve system for cleaning (1, 2, and 3). The bypass valves enable the
system to continue operating when the
FILTAIRE
is removed for cleaning (
See
Figure 32 )
.
Note: Items 4,5 and 6 are included with
FILTAIRE
assemblies.
Figure 32 – Filtaire Operation
1ST STAGE
REGULATOR
VAPOR FROM
VAPORIZER
INLET VALVE
2
VAPOR LINE
“FILTAIRE” OIL DEMISTER
OUTLET VALVE
BYPASS VALVE
(NORMALLY CLOSED)
3
1
5 DRAIN
VALVE
PIPE
STAND
6
4
VAPOR
TO LOAD
Filtaire.wmf
LEAK TEST
CAUTION
The entire installation must be leak tested prior to operating the
system.
1. Close outlet valve.
2. Slowly open inlet valve and allow pressure to equalize in the vaporizer.
3. Apply a liberal amount of soap/water solution to ALL pipe connections.
4. Check for any leaks by observing new bubble formation in the soap/water solution.
5. Repair any leaks before continuing.
