Windsor-Severence Fire Protection District
Heavy Rescue
Production Specification
SVI #774 Page 105 of 126 April 19, 2010
BREATHING AIR STORAGE SYSTEM
Breathing air system shall be provided with a air storage module consisting of:
1. Eight (8) 6,000 psi, DOT air storage cylinders shall be provided which comply with 49 CFR 178.37, “Specification
3AA and 3AAX seamless steel cylinders,” or 29 CFR 1910.169, “Air receivers”. Each cylinder shall be
permanently stamped or identified in accordance with DOT or ASME regulations.
Each cylinder shall have a working pressure of 6,000 psi with a nominal capacity of 509 cu.ft. at 6,000 psi.
If the air storage was cascaded the system would be capable of filling approximately ninety (90) 45 cu.ft. 2,216 psi or fifty
eight (58) 45 cu.ft. 4,500 psi SCBA bottles (based on residual pressure of 500 psig).
There shall be a label which reads, "HIGH PRESSURE - 6,000 psi BREATHING AIR".
The air tank manufacturer shall provide a copy of either the U.S. Department of Transportation (DOT) certificate
Report of Inspection of Gas Cylinders or the ASME certificate Manufacturers Data Report for Pressure Vessels, and the
certificate shall be delivered with the fire apparatus.
Relief valves on transportable air tanks shallbe of the ASME type on ASME cylinders and of the DOT type on
DOT cylinders or equal for the rated pressure.
Valves installed on air tanks shall meet the requirements of the Compressed Gas Association regarding pressure and
usage with compressed air.
If the installation utilizes cylinders that require periodic testing, a label shall be placed on or near the operators panel that
provides the following:
(a) The original cylinder test date stamped on the cylinders
(b) The recommended testing interval
(c) Five additional open spaces, appropriately labeled, for the user to enter actual retesting dates
The manufacturers test date (month and year) on each air tank shall be current within 12 months of the apparatus delivery
date.
Air Tank Mounting
Air tanks shall be mounted in an arrangement that will hold the tanks in all types of mobile use.
A protective device(s) shall be provided to protect the air tank valve(s) and associated piping from damage as a result of
accidental impact. The protective device(s) shall not prevent access for operation and inspection.
The air tank mounting shall facilitate removal of air tanks for inspection, testing, or service.
Air tanks shall be installed so that all air tanks, control valves, and associated piping are readily accessible.
Air tanks shall be mounted in such a fashion to permit visual inspection of external surfaces and emergency access to
shutoff of tank valves.
The air tank location shall be away from any heat producing devices such as the generator engine or exhaust.
(112 paginas)
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