Complete Compiled Specification.pdf - Peck Ormsby Construction

Install each direct-connected motor such that it is securely mounted in accurate alignment. The drive must be
free from both angular and parallel misalignment when both motor and driven machine are operating at normal
temperatures. Provide each belt-connected motor with a securely mounted adjustable base to permit installation
and adjustment of belts.
INSTALLATION OF ABOVE GROUND PIPING:
Provide piping systems of sizes indicated on the drawings. Systems shall be installed complete.
Install piping systems in conformance with ANSI B31.
Install piping to allow for expansion and contraction of the piping systems.
Provide offsets and swing joint connections at coils, pumps and other equipment to eliminate undue strain at the
equipment connections.
1. Connect flanges and tack weld piping systems in place before full circumferential welds are made.
2. Springing of piping at equipment connections will not be permitted.
3. The use of "cold-spring" is not permitted.
Branch connections shall be made at the top or at a 45 degree angle above the centerline.
Install water piping with a pitch or slope of not less than 1-inch in 40 feet.
1. Provide 3/4-inch diameter plugged drain valves at each low point.
High Points: At each high point of the piping system provide a 3/8-inch diameter plugged globe valve.
1. Where high points are located in an inaccessible position, provide a 3/8-inch diameter bleed line from
the high point of the piping system and extend to an approved location, with access. Anchor bleed
piping and provide 3/8-inch diameter globe valve.
Support, anchor, and guide piping systems to preserve piping flexibility and the isolation effects of sound and
vibration isolation hangers.
Conform to the welding and welder qualification requirements paragraph of this Section.
1. Perform welding in conformance with ANSI B31.1.
2. Perform welding in ambient temperatures above 0 degrees F.
3. Ream and clean ends of piping.
4. Support piping, align and tack weld making allowance for pipe pitch and insulation. Temporarily block
piping at hangers.
5. Use welding pipe clamps on piping 4-inch diameter and larger, and verify alignment before welding.
All installed pipe lines shall be straight, free from dents, scars and burrs, with ends reamed smooth and shall
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SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDTION March 2, 2009
BASIC MATERIALS & METHODS 15050-27