Page 2 of 4
G
ICAF -
Integrated Compressed Air Foam System
Foam Supply Section
FM-0723-0-13G
4. Check the sight gauge
(T5)
level:
a)
If level is normal
,
CLOSE
the bottom sight gauge
isolation valve (T4) and drain concentrate from level
gauge tube by opening the tank drain valve
(T3)
.
Once the level gauge tube is drained,
CLOSE
tank
drain valve
(T3)
, both sight gauge isolation
valves
(T4)
and the tank vent valve
(T6)
.
b)
If level is below normal
, add foam concentrate up to
normal level by following
FILLING PROCEDURE
described in section 6.
After a system discharge:
Foam storage tank
(T1)
is pressurized when operated;
therefore pressure must be relieved before a sight
gauge
(T5)
reading can be taken after a discharge.
1. To allow air to vent from the foam storage tank,
SLOWLY
AND PARTIALLY OPEN
tank vent valve
(T6)
until tank
pressure gauge
(T7)
indicates 0 psi (0 kPa) pressure.
2.
OPEN
both sight gauge isolation valves
(T4).
3.
SLOWLY OPEN
tank vent valve
(T6).
This will allow the
remaining foam concentrate in the tank to reach its
level in the sight gauge tube.
4. Check sight gauge level
(T5).
a)
If level is normal
,
CLOSE
the bottom sight gauge
isolation valve
(T4)
and drain concentrate from level
gauge tube by opening the tank drain valve
(T3)
.
Once the level gauge tube is drained,
CLOSE
tank
drain valve
(T3)
, both sight gauge isolation
valves
(T4)
and the tank vent valve
(T6)
.
b)
If level is below normal
, add foam concentrate up to
normal level by following
FILLING PROCEDURE
described in section 6.
6. Filling Procedure
NOTICE
:
USE ONLY FOAM CONCENTRATE
APPROVED FOR
F
IRE
F
LEX
'S
COMPRESSED AIR
FOAM SYSTEM.
SAFETY NOTICE:
Foam concentrates are primary eye
irritants, and contact with the eyes should be avoided.
Users are advised to wear protective equipment when
filling foam tank. If foam concentrate enters the eyes,
flush them well with water and seek immediate medical
attention. For further details, see foam concentrate
Material Safety Data Sheet.
1. Before starting the fill procedure, insure that the foam
storage tank
(T1)
is not pressurized. Verify that foam
storage tank pressure gauge
(T7)
shows 0 psi (0 kPa)
pressure.
2. Verify that you have in hand the amount of foam
concentrate that corresponds to the storage tank rated
capacity.
3. Foam refill valve
(T3)
and both level sight gauge
isolation valves
(T4)
should be closed
.
4. Prime and connect the concentrate pumping apparatus
to the foam refill valve
(T3).
Use a hand-operated drum
pump, a centrifugal pump or pneumatic operated
diaphragm pump.
5.
OPEN
the foam refill valve
(T3)
, the lower gauge
isolation valve
(T4)
and the vent valve
(T6).
6. Slowly start to pump the concentrate into the storage
tank and adjust the flow to avoid concentrate overflows
at the vent valve
(T6).
7. When approximately 90% of the nominal charge has
been pumped, stop pumping and open the upper level
sight gauge isolation valve
(T4)
to check the sight
gauge
(T5)
level.
8. Resume pumping at a very slow rate and stop pumping
when level reaches about halfway in the sight
gauge
(T5)
.
CLOSE
foam refill valve
(T3)
and
disconnect the concentrate pumping apparatus.
9.
CLOSE
lower sight gauge isolation valve
(T4)
and drain
concentrate from level gauge tube by opening tank
drain valve
(T3).
10. Once the level gauge tube is drained,
CLOSE
tank drain
valve
(T3)
and both sight gauge isolation valves
(T4).
11.
CLOSE
the vent valve
(T6).
7. Maintenance and inspections
Regular inspections, tests, and maintenance should be
performed at intervals specified in this document to verify that
the foam supply is in good operating condition and that it
functions as intended. The system shall be so arranged that
tests can be performed with as little loss of foam as practical.
Components shall be restored to full operational condition
following inspection and testing.
8. Foam Tank Normal conditions
Verify that all valves are in the proper position (refer to
chapter 5 from this section).
Foam concentrate level check
Regular inspections should be performed to verify the
concentrate level. Follow the level check procedure
described at chapter 5 from this section. If the concentrate is
lower than recommended, refer to the refilling instructions at
chapter 6.
Foam sample analysis
Inspection of foam concentrates and their containers shall be
made for evidence of excessive sludging or deterioration.
Inspection shall include a qualitative test of the foam
concentrate normally conducted by the manufacturer.
Presence of specific quantities of concentrates in system
storage equipment in service ready position and quantities of
reserve concentrates on hand shall be checked with
requirements for same.
Eight ounce (8 oz.) (250 ml) samples of foam concentrate
should be taken from the storage tank drain valve
(T3)
.
Foam samples may be sent to
F
IRE
F
LEX
Systems.
Summary of Contents for ICAF System
Page 1: ...Operation Maintenance Manual FM 0723 0 02 A ...
Page 7: ...OWNER S OPERATION MAINTENANCE MANUAL ICAF Integrated Compressed Air Foam System FM 0723 0 5B ...
Page 27: ...Page 4 of 4 ICAF Integrated Compressed Air Foam System System Trim Section FM 0723 0 10 A ...
Page 41: ...Page 2 of 2 J ICAF Integrated Compressed Air Foam System User Notes FM 0723 0 16D User Notes ...
