PN: 123-194, Rev. F
Page 24 of 44
Models FD 150 – 1000
built with DOT 3AL/TC-3ALM cylinders and
FD Models 1025 –
1500
built with DOT 4BW/TC 4BWM welded steel cylinders:
Both of these cylinder types are reusable and must be periodically tested and re-
qualified. The periodic inspection interval for both DOT 3AL and DOT 4BW cylinders
filled as a Fire suppression system with the agent as supplied is 12 years from the date
stamped on the cylinder. However, a cylinder filled before its re-qualification date
(becomes due), and remains filled, may remain in service without testing until it is
emptied for any reason (reference 49 CFR 180.205 (c).
Correlation to NFPA 2001 (5 year) requirement. In both standards, if the cylinder
is not already empty, it does not need to be emptied solely for inspection
purposes. If the cylinder has more than 5 years of service, and has been emptied
for whatever reason, it needs to be inspected per NFPA 2001 guidelines listed
above.
For DOT 4BW/ TC 4BWM welded steel cylinders only, a visual inspection in
accordance with CGA C-6 or C-6.3, as appropriate, may be performed instead of
the periodic hydrostatic tests. When this test method is applied, the subsequent
inspection comes due after 5 years.
o
Applicable tests methods for DOT 4BW cylinders are by Proof Pressure Test
which yields a subsequent test requirement after 7 years and a Volumetric
Expansion test using the Water Jacket Method which yields a subsequent test
requirement after 12 years.
For DOT 3AL/TC 3ALM cylinders, visual inspections are not authorized to replace
hydrostatic testing.
o
The only test method for DOT 3AL cylinders is the Volumetric Expansion test
using the Water Jacket Method which yields a subsequent test requirement
after 12 years.
For systems compliant to European Directives, (EC), specific cylinders may be used
different than DOT / TC approved systems. International requirements need to be
followed as well as other requirements according to the local authorities having
jurisdiction (AHJ).
Models FG 25 – 240
with EC approval are designated as “CE” marked in accordance
with the Pressure Equipment Directive (PED) 2014/68/EU. Those cylinders are built
to technical specifications either BS EN12205 or ISO 11118. These systems are not
refillable. Systems with these cylinders are not serviceable and therefore have no
periodic inspection requirements. (Reference ISO 11118 and PED Directive
2014/68/EU). Models with these cylinders, per European Agreement Governing the
International Carriage of Dangerous Goods by Road (ADR) requirements, are clearly
marked, “DO NOT REFILL”.
Содержание FD 1001-1500
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