Complete Compiled Specification.pdf - Peck Ormsby Construction

2. Before coating, pipe surface shall be free of dust, dirt, loose rust, moisture, welding
residue, oil, and grease. Surface shall then be power tool cleaned or commercial blast
cleaned to conform to SSPC Specification SP-3 or SP-6.
PART 32 CEMENT MORTAR COATING
A. Steel pipe specified or shown to be cement mortar coated shall be coated in accordance with
AWWA C 205 modified as follows:
1. Portland cement shall conform to ASTM C 150, Type II, low alkali.
2. Sand shall conform to the requirements of AWWA C 205 except that the total
percentage of all deleterious material shall not exceed 3 percent.
PART 33 COPPER PIPE AND TUBING
A. Except as otherwise specified or shown on the Plans, copper pipe and tubing shall be as
follows: copper pipe for the conveyance of water or aqueous solutions shall conform to the
requirements of ASTM B 88 as detailed below.
PART 34 ASTM B 88 TUBING
1. Copper lines shall be neatly supported as shown on the Plans or at such intervals as to
prevent sagging. Tube shall be cut square with hacksaw or disc cutter and shall be
reamed full size and burrs removed. If necessary, a sizing tool shall be used to correct
any distortion. The outside surface of the end of the pipe and the inside surface of solder
fittings shall be cleaned with steel wool until the metal is bright. Soldering flux shall be
applied to the cleaned surfaces of pipe and fittings in a thin, uniform, complete coating.
After the pipe has been inserted in the fitting as far as it will go, the fitting shall be twisted
on the pipe to help spread the flux uniformly. The fitting shall be heated until it reaches
the correct temperature to melt the solder. The flame shall then be removed and the
solder applied to the edge of the fitting or to the solder hole in the fitting, if there is one,
and the joint completely filled with solder. When the solder has congealed to a plastic
state, the excess metal shall be removed with a cloth or brush. Joints shall not be
quenched after soldering.
2. All copper lines shall be cleaned with high-pressure air after first disconnecting piping
at instruments, filters, pressure reducers, valve operators, and other special devices.
3. All copper lines shall be tested in the same manner as the piping system to which they
connect, except that instrument air lines may be tested by use of a halide torch or other
device after charging the lines with Freon.
1. All exposed copper pipe or tubing conforming to ASTM B 88 shall be Type L harddrawn,
rigid, seamless copper water tubing.
2. Copper tubing buried in the ground or in plastic conduit shall conform to the same
specification but shall be Type K soft-annealed.
3. Fittings shall be Hoke "Gyrolok," Crawford Fitting Company "Swagelok," or equal, or
solder type forged or wrought copper. Solder shall be ASTM B 32, Alloy Grade 5A.
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION 02630 - 13
PIPING, VALVE, GATES AND SPECIALTIES MARCH 2, 2009