Complete Compiled Specification.pdf - Peck Ormsby Construction

diameter shall be Class 54, minimum; pipe sizes 20-inch nominal diameter shall be
Class 55, minimum; pipe sizes 24-inch in nominal diameter shall be Class 56, minimum.
Grooved-end pipe shall be supported in accordance with manufacturer's
recommendations. In addition, at least one support shall be used between any two
couplings.
3. The Contractor shall submit a listing of services and locations where he proposes to
use grooved-end pipe prior to start of installation of any grooved-end piping. This listing
shall be subject to the Engineer's acceptance, and acceptance in writing by the Engineer
will be required prior to the delivery of any grooved piping materials to the site of the
Work.
4. The Contractor shall submit for review complete information showing fittings, gaskets,
mechanical pipe couplings, grooving of pipe and pipe lining or coating prior to installation
of any pipe. All materials proposed for use are subject to Engineer's acceptance.
5. Mechanical pipe couplings and grooved-end pipe shall be installed in accordance with
the coupling manufacturer's representative's recommendations.
PART 10 GROOVED-END DUCTILE IRON PIPE
A. COUPLINGS AND FITTINGS
PART 11 JOINTS
1. Grooved-end ductile iron pipe shall be joined by mechanical pipe couplings.
Mechanical couplings shall be self-centering and shall engage and lock in place the
grooved pipe and pipe fitting ends in a positive watertight couple. Couplings shall be
fabricated in two or more parts of malleable iron in accordance with ASTM A 47,
Grade 32510. Couplings shall be the flexible grooved type for radius grooved pipe.
2. Coupling assembly shall be securely held together by two or more steel bolts and nuts
of heat-treated carbon steel. Nuts and bolts shall be in accordance with ASTM A 183
and ASTM A 194, Grade 2.
3. Couplings shall hold in place a composition water-sealing gasket designed so that
internal water pressure serves to increase the seal's water tightness. Sealing gaskets
shall be chlorinated butyl in accordance with ASTM D 2000, Grade No. 3BA6l5Al4Bl3
with special heat-resistance test of 16 hours at 350 degrees F and maximum elongation
change of minus 30 percent.
4. All pipe fittings used in connection with mechanical pipe couplings shall be radius
grooved for grooved-end ductile iron pipe. Radius grooved cast iron fittings shall conform
to the requirements of ANSI B 16.1. The outside surface of pipe between the groove and
pipe end must be smooth and free from deep pits or swells and shall provide a leak tight
surface for the gasket.
A. Where so indicated or specified, joints shall be made with flexible couplings or with mechanical
couplings for grooved or shouldered end pipe. Unless otherwise noted, joints that are not buried
in the ground shall be flanged joints. All other joints shall be mechanical joints, or push-on joints.
Mechanical joint, or push-on joint pipelines shall have flanges where necessary for valves and
clean out connections.
PART 12 FLANGED JOINTS
A. Flanges may be cast integrally with the pipe, in which case they shall conform to ANSI B 16.1
as to diameter, thickness, drilling, and other characteristics or they may be screwed on the
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION 02630 - 5
PIPING, VALVE, GATES AND SPECIALTIES MARCH 2, 2009