2.2.5
Interchangeability
All parts shall be manufactured to standards that will permit replacement
without modification to parts or equipment.
2.2.6
Surfaces
All surfaces shall be finished or painted as specified in paragraph
PAINTING AND FINISHING.
2.2.7
Fastening Devices
Bolts and nuts shall be suitable and shall conform to ASME B18.2.1 and ASME
B18.2.2 respectively. All screw threads shall conform to the requirements
of ASME B1.1. All screws, pins, bolts, hydraulic fittings, and similar
parts shall be installed with a means to prevent loss of tightness. Such
parts subject to removal or adjustment shall not be swagged, peened,
staked, or otherwise permanently deformed.
2.2.8
Electrical
All wiring shall be brought to a single location. Equipment shall be
factory wired complete with all necessary accessory devices, so as to
require only a source of power at [_____] volts, [_____] phase, 60 hertz,
to make the equipment operable. Wiring shall be neat and secure.
2.2.9
Castings and Forgings
All castings and forgings shall be free from defects such as
scale,
mismatching, blowholes, or any other defect that will affect
life or
function of the part. Cast gray iron shall conform to [ASTM
A 278/A 278M] [
ASTM A 48/A 48M], cast iron shall conform to ASTM A 319, and
heat resistant
alloy shall conform to ASTM A 297/A 297M Grade HF.
2.2.10
Welding, Brazing, Soldering, Riveting, or Wiring
Welding, brazing, soldering, riveting, or wiring shall be employed only
where these operations are required in the original design.
2.2.11
Refractory and Insulation
Refractory and insulation systems shall be manufacturer's proven standard
design. Manufacturer shall submit temperature estimates, material quality
information, and description of installation methods in sufficient detail
to permit evaluation of the materials and methods used. Construction
materials and methods must be approved before manufacture. Plastic
refractory shall be installed in accordance with the manufacturer's
recommendations and by workmen skilled in its application. Insulation
systems shall be manufacturer's proven standard materials and methods and
shall be submitted with data as to adequacy of material. Hot spots
exceeding requirements shall be field repaired as directed. Exposed areas
to be field installed shall be as specified in Section 15080A THERMAL
INSULATION FOR MECHANICAL SYSTEMS.
2.2.11.1
Insulation
Where specified or indicated, insulation shall be insulating block
containing no asbestos material, designed to prevent damage to foundation
and boiler exterior due to excessive heat. Contractor shall comply with
SECTION 15846A
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