Complete Compiled Specification.pdf - Peck Ormsby Construction

Copper Piping in Domestic Water Service: Piping shall be cut (with a pipe cutter) so ends are square and will
"bottom" in fittings. There must be no gaps left thru which solder can run into the line. If a hack saw must be
used, it shall be guided with a miter box to insure a square, even cut. Tubing shall be reamed to remove burrs,
being careful not to expand tubing while reaming.
The outside of the copper pipe and the inside of the fittings, where solder will be applied, shall be burnished with
fine crocus cloth or fittings brushes until all dirt and oxide is removed.
A light coat of soldering flux shall be applied to both pipe and fittings. Acid flux shall not be used.
Joints in copper pipe shall be uniformly heated to proper soldering temperature to insure that solder will flow to
all parts of the joint. The solder shall be fed to the joint until a uniform line of solder appears around the pipe at
the end of the fittings.
Copper piping used in domestic water service above grade shall be joined with 'Stay-Safe-50' or 'Silvabrite-100'
no lead solder.
Copper piping used in domestic water service below grade shall have brazed -or- silver soldered joints.
When valves are being installed in copper piping, the non-metallic parts shall be removed to prevent the heat of
soldering from damaging the valves. No heat shall be applied near where an excessive temperature may cause
damage.
Refrigeration piping: See "Refrigeration Piping Installation."
Victaulic type couplings, fittings, and valves may be used for chilled water piping 2" and over when fabricated
and installed in strict compliance with the manufacturer's recommendations.
Qualification of Welders: Welders performing work under this Contract shall be certified and qualified in
accordance with tests prescribed by the National Certified Welding Bureau (NCWB) or by other approved test
procedures using methodology and procedures covered in the ASME Boiler and Pressure Vessel Code, Section
IX, "Qualification Standard for Welding and Brazing Procedures, Welders, Braziers, and Welding and Brazing
Operators."
Submit for approval the names, identification, and welder's assigned number, letter or symbol of welders
assigned to this project.
The assigned identification symbol shall be used to identify the work of each welder and shall be indelibly
stamped immediately upon completion of each weld.
Welders shall be tested and certified for all positions.
Submit identifying stenciled test coupons made by each operator.
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SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDTION March 2, 2009
BASIC MATERIALS & METHODS 15050-4