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TranSystems Corporation - LGM Construction

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501070099 Federal Express Oakland Sort Expansion Issued for Bid 10/11<br />

2.15 DIELECTRIC UNIONS<br />

A. Isolate connections of dissimilar metals and above grade piping from below slab or grade piping<br />

with insulating dielectric connections. Dielectric connections shall also be furnished for joining<br />

similar metals in order to isolate cathodically protected pipelines from adjoining pipe sections.<br />

Such joints, including dielectric material, shall be rated to withstand the temperature, pressure and<br />

other characteristics of the service for which it is to be used, including the testing pressure.<br />

B. Screwed joints shall be made with insulating unions as manufactured by EPCO, or similar by<br />

Stockham.<br />

C. Flanged joints shall be made with insulating gaskets, as manufactured by Duriron Co. ("task time"<br />

insulating gaskets) and bolt sleeves and washers by E.I.DuPont de Nemours & Co. ("Teflon"), or<br />

equal.<br />

2.16 ACCESS PANELS<br />

A. Provide access panels of sufficient size to allow for the adjustment, repair, or replacement of all<br />

equipment, such as valves, balancing valves, control valves, air vents, strainers, traps, expansion<br />

joints, and shock absorbers. Minimum size shall be 12 inch x 12 inch. Access panels shall be<br />

installed at all locations where equipment is concealed. Panel finish shall match the finish of the<br />

adjoining surface.<br />

B. Provide spanner head cam latch with 2 wrenches per 10 panels.<br />

C. Access panels in plaster surfaces shall be Style K, panels in masonry walls shall be Style M each<br />

as manufactured by Inryco- Milcor, or similar by Krueger Manufacturing Co.<br />

2.17 FIRE-RESISTIVE SILICONE FOAM AND SEALANT<br />

A. Fire-resistive silicone foam shall be a FM and UL approved two-part, field mixed, expanding<br />

silicone foam that will cure at room temperature to a flexible fire resistive foam. Foam material<br />

shall be Dow Corning 2001 as manufactured by Dow Corning <strong>Corporation</strong>, Midland, Michigan.<br />

B. Sealant for use with fire-resistant foam shall be Dow Corning 2000 sealant also manufactured by<br />

Dow Corning <strong>Corporation</strong>.<br />

BASIC MATERIALS AND METHODS 15050-9

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