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Fairbairn-Beeley boiler, a fire-tube boiler with multiple joined shells of small diameter; Fairfield-Johnson boiler: a later form of Johnson boiler operating at lower pressure (450 psi [31 bar; 3,100 kPa] rather than 850 psi [59 bar; 5,900 kPa]), but still a high superheat temperature 825 °F (441 °C). [4]
A short piece of fire hose, usually 10 to 20 feet (6.1 m) long, of large diameter, greater than 2.5 inches (64 mm) and as large as 6 inches (150 mm), used to move water from a fire hydrant to the fire engine, when the fire apparatus is parked close to the hydrant.
Hoses up to 12 in (30.5 cm) in diameter with pressure ratings up to 150 psi (10.3 bar; 1,030 kPa) are now available. These hoses are expected to find applications in large-scale industrial firefighting, as well as in disaster relief efforts and military operations. [17] Fire hoses come in a variety of diameters.
A typical US dry-barrel hydrant has two smaller outlets and one larger outlet. The larger outlet is often a Storz connection if the local fire department has standardized on hose using Storz fittings for large diameter supply line. The larger outlet is known as a "steamer" connection, because they were once used to supply steam powered water ...
This standard specified that each fire hydrant have one large diameter pumper (a.k.a. "steamer") port 4.5 inches in diameter with 4 threads per inch (meant for supplying water to a pumper truck or other high-capacity distribution device), and two medium-diameter ports, each 2.5 inches with 7.5 threads per inch, meant for supplying individual ...
The Columbus Division of Fire oversees 35 engine companies, 16 ladder companies, 5 rescue companies, and 40 EMS transport vehicles as well as several special units and reserve apparatus. It is staffed by a minimum of 292 personnel during daytime hours (first 12 hours) and 331 during nighttime hours (second 12 hours). [ 5 ]
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