c.
Economizer predicted efficiency calculations.
2.2.1
Packaged Watertube Boiler
Provide Type I boiler conforming to FS F-B-2902 except as modified below.
Provide lifting attachments.
2.2.2
Boiler shall be capable of operating continuously at the maximum specified
conditions without damage or deterioration to the boiler, settings, firing
equipment or auxiliaries. Boiler shall be capable of automatically
controlled operation while burning the specified fuel[s].
2.2.3
Tubes
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NOTE: Use this paragraph if tube diameters larger
than specified in FS F-B-2902 are desired and insert
minimum acceptable diameter.
**************************************************************************
Boiler and furnace tubes shall be not less than [_____] mm inches in
outside diameter. Furnace tubes and first two rows of main boiler bank
shall be one gage heavier than other tubes.
2.2.4
Boiler Trim
Fitting, drain valves, drain piping, feed piping, pressure gages, feed
valves, stop valves, check valves, safety valves, and remaining
appurtenances shall comply with applicable requirements of the ASME Boiler
and Pressure Vessel Code. Components shall conform to the following:
2.2.4.1
Boiler Blowoff Valves
Provide flanged [Class 250 cast iron] [Class 300 cast steel] body,
seatless, sliding plunger type valves mounted in tandem at each boiler
blowoff connection.
2.2.4.2
Steel Gate, Globe and Angle Valves
ASME B16.34.
2.2.4.3
Safety, Relief, and Safety Relief Valves
ASME BPVC SEC I.
2.2.4.4
Steam Gage
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NOTE: Select gage scale to operate within the
middle third of range.
**************************************************************************
Provide a 300 mm 12 inch diameter indicating steam gage with chromium
plated trim and zero to [_____] kPa (gage) psig scale. Gage shall be
complete with syphon, valve, piping, and fittings to properly connect same.
Gage shall be flush mounted on a 368 mm square by 5 mm 14 1/2 inch square
SECTION 15501N
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