The work shall include the furnishing, installing, and testing of high
temperature water piping inside the building, as indicated, together with
all fittings and appurtenances necessary for a complete and operable
system. [The work also includes [modifications] [and] [[HTW][MTW] system
connection] to the existing [HTW][MTW] piping.]
1.3.3
Classes and Maximum Working Pressures
Except as specified otherwise, piping components shall be suitable for use
under the maximum working pressures indicated. Except as modified herein,
the pressure temperature limitations shall be as specified in the
referenced standards and specifications. All pressures in this
specification are pressures in kilopascal (kPa) pounds per square inch (psi)
above atmospheric pressure, and all temperatures are in degrees Celcius (C)
degrees Fahrenheit (F).
1.3.4
Field Verification
The Contractor shall become familiar with all details of the work, verify
all dimensions in the field, verify the maximum operating temperature and
pressure of the heating distribution system with the heating plant foreman,
and advise the Contracting Officer of any discrepancy within 3 days and
before performing any work.
1.3.5
Identification
Each major item of equipment shall have the manufacturer's name, address,
type or style, and model or serial number on a plate secured to the item of
equipment.
1.3.6
Welding Safety
Safety in welding and cutting of pipe shall conform to AWS Z49.1.
1.3.6.1
Procedures and Qualifications
Before any welding is performed, the Contractor shall submit welding
procedure specifications for all metals included in the work, together with
proof of its qualification as outlined in ASME B31.1.
Before any welder or operator performs any welding, submit Welder's
Performance Qualification Record in conformance with ASME B31.1showing that
the welder was rated under the approved procedure specification submitted
by the Contractor. In addition, submit each welder's assigned number,
letter, or symbol used to identify the work of the welder, and affix
immediately upon completion of the weld. To welders making defective welds
after passing a qualification test, give a qualification test and upon
failing to pass the test, do not permit to work this contract.
Welders and welding operators previous qualifications on welding procedures
test may be accepted for the contract without requalification subject to
the approval and provided that all the conditions specified in ASME B31.1
are met before a procedure can be used.
1.4
SUBMITTALS
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NOTE: Submittals must be limited to those necessary
SECTION 15184N
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