2.6.3
Strainers
Basket or Y-type strainers shall be the same size as the pipelines in which
they are installed. The strainer bodies shall be cast-iron rated for Class
125 125 pound service, with bottoms drilled and plugged. Bodies shall have
arrows cast on the sides to indicate the direction of flow. Each strainer
shall be equipped with a removable cover and sediment basket. Basket shall
not be less than 0.76 mm (22 gauge) 22 gauge and shall have perforations to
provide a net free area through the basket of at least four times that of
the entering pipe.
2.7
SEQUENCE OF AUTOMATIC CONTROLS
Sequence of automatic controls shall be as specified in Section 15951
DIRECT DIGITAL CONTROL FOR HVAC AND OTHER LOCAL BUILDING SYSTEMS.
2.8
FACTORY COATING
Radiator and convector enclosures shall be coated with the manufacturer's
standard rust inhibiting primer. Other equipment and component items, when
fabricated from ferrous metal, shall be factory finished with the
manufacturer's standard finish.
PART 3
EXECUTION
3.1
INSTALLATION
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NOTE: Mechanical and electrical layout drawings and
specifications for ceiling suspensions should
contain notes indicating that hanger loads between
panel points in excess of 222 Newtons (50 pounds)
shall have the excess hanger loads suspended from
panel points.
All pertinent piping and related equipment supports
should be designed and indicated in accordance with
paragraph Pipe Supports and Structural Bracing,
Seismic Requirements below. The reference to the
ICBO-01 will allow for deviations from the design
drawings where required to match equipment actually
supplied. Drawings shall detail anchors and pipe
guide and indicate location.
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All work shall be installed as indicated and in accordance with the
manufacturer's diagrams and recommendations.
3.1.1
Piping
Unless otherwise specified, pipe and fitting installation shall conform to
the requirements of ASME B31.1. Pipe shall be cut accurately to
measurements established at the jobsite and worked into place without
springing or forcing, completely clearing all windows, doors, and other
openings. Cutting or other weakening of the building structure to
facilitate piping installation will not be permitted without written
approval. Piping or tubing shall be cut square, shall have burrs removed
by reaming, and shall be so installed as to permit free expansion and
contraction without causing damage to building structure, pipe, joints, or
SECTION 15562A
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