Complete Compiled Specification.pdf - Peck Ormsby Construction

the installation. All supports shall be designed in accordance with the AISC Steel Handbook and painted with
one shop coat of primer paint.
Insulation inserts and MSS-69 Type-40 shields for cold surface piping will be provided under Section 15180 of
these specifications.
Pipe covering protection saddles, MSS-69 Type-39, shall be installed at all pipe hangers which support insulated
"hot surface" piping. Saddles shall be tack welded to the piping and shall match the insulation thickness applied.
All copper piping shall be securely supported from the building structure at intervals specified and/or as
recommended by the pipe manufacturer. Hangers shall be provided with pads or cushions on the bearing
surfaces to prevent contact between the pipe and hanger.
All piping in mechanical equipment rooms shall be supported with spring cushion vibration control hangers per
MSS-69 Fig. 48.
Plumbers' tape, chain, or wire will not be permitted for pipe support.
Piping placed underground shall be laid on a firm bed for its entire length.
VALVES AND STRAINERS:
All valves and strainers shall be by one manufacturer. Approved valve manufacturers are Stockham, Apollo,
RP&C, Crane, Keytone, W.C. Norris, Grinnell, or Powell. Stockham, Apollo, and RP&C numbers are used for
convenience.
Heating, Chilled, and Domestic Cold Water:
Gate Valves:
Valves 2" and smaller shall be Stockham B-100, bronze, screwed, 200# WOG gate valve with solid wedge disc
and rising stem.
NOTE: If unable to use a rising stem valve because of insufficient clearance, use a Stockham B-110 nonrising
stem valve.
Globe Valves:
Valves 2" and smaller shall be Stockham B-22-T, bronze, screwed, 200# WOG globe valve with a replaceable
teflon disc and teflon packing. The disc shall be suitable for hot water up to 360 deg. F. at 150 psi.
Check Valves:
Valves 2" and smaller shall be Stockham B-321, bronze, screwed, Y-pattern 200# WOG swing check valve.
Valves 2-1/2" and larger shall be Stockham G-931.
Butterfly Valves:
Valves 2-1/2" and larger shall be Stockham LG-712D & 3E lever iron body and disc, lug type, stainless steel
stem, 200# WOG EPT Stockham LG-722D & 3E gear seat rated for 275 deg. F butterfly valve.
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SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDTION March 2, 2009
BASIC MATERIALS & METHODS 15050-9