FireFlex Systems Inc. ARC-1, Руководство по эксплуатации и техническому обслуживанию для владельца

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Page 3 of 6
ICAF -
Integrated Compressed Air Foam System
Foam Supply Section
FM-0723-0-13 D
6. Slowly start to pump the concentrate into the storage
tank and adjust the flow to avoid concentrate overflows at
the Foam Refill Vent Valve
(T6).
7. When approximately 90% of the nominal charge has
been pumped, stop pumping and open the level sight
gauge isolation valves
(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.
9. CLOSE bottom 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 Foam Refill Valve (T9) and the Foam Refill
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.
Foam Tank Normal conditions
Verify that all valves are in the proper position (refer to page 2
and the foam storage tank schematic).
Foam concentrate level check
Regular inspections should be performed to verify the
concentrate level, follow the level check procedure described
on page 2. If the concentrate is lower than recommended,
refer to the refilling instructions on page 3.
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 FireFlex Systems.
Either glass or plastic bottles are satisfactory, provided they
are leak-proof and well packaged. The sample(s) must be
labelled and provide the location, type of concentrate, lot
number and date, storage container, name and phone
number of the person sending the sample(s). The sample(s)
will be evaluated for appearance, foam expansion, drain time,
and film spread, as compared to foam standards.
Foam sample collection procedure:
(Refer to figure 2- Foam storage tank schematic)
Under normal standby conditions, foam storage tank
(T1) is
not pressurized. Sight gauge (T5) should not show any
reading and tank pressure gauge (T7) should be at 0 psi
(0 kPa).
1. Verify that foam storage tank pressure gauge
(T7)
shows 0 psi (0 kPa) pressure.
2. OPEN both sight gauge isolation valves (T4).
3. SLOWLY OPEN tank refill vent valve (T6), allowing the
foam concentrate stored in the tank to reach its level in
the sight gauge tube.
4. Collect the sample of foam concentrate by opening
storage tank drain valve (T3) .
5. Once the sample is collected, close the storage tank
drain valve (T3).
6. CLOSE bottom sight gauge isolation valve (T4) and
drain concentrate from level gauge tube by opening tank
drain valve
(T3). Once the level gauge tube is drained,
CLOSE tank drain valve (T3) , both sight gauge isolation
valves (T4) and tank refill vent valve (T6).
Foam injection line testing procedure
(Refer to TRIM SCHEMATIC in the ICAF System section)
Regular tests should be performed to verify that the foam
injection line is not clogged by any debris or coagulated foam
concentrate that would impair its proportioning rate.
Under normal standby conditions, foam injection line is not
pressurized. Foam injection line pressure gauge
(F4) should
read 0 psi (0 kPa).
1. System's air supply should be open; air pressure gauge
(A4) inside the ICAF System cabinet should indicate a
pressure of 100 psi.
2. OPEN foam injector flushing valve (F5).
3. Wait approximately 5 seconds or until pressure stabilizes
at the foam injection line pressure gauge (F4).
4. CLOSE foam injector flushing valve (F5).
5. Foam injection line pressure gauge (F4) should vent
quickly and indicate 0 psi (0 kPa) after a few seconds.
6. If the foam injection line doesn't vent properly, the foam
injector (C2) shall be disassembled, cleaned, and
reassembled.