2013 4 29 ROSEMARY BEACH PROJECT MANUAL.pdf

DAG Architects Inc.
12041 Rosemary Beach Owners Center
Rosemary Beach Fl.
can be replaced when worn.
7 Extended Stem: Increase stem length by 2" minimum, to accommodate insulation
applied over valve.
3 EXECUTION
3.1 Installation:
3.1.1 General: Install valves where required for proper operation of piping and equipment, including
valves in branch lines to isolate sections of piping. Locate valves so as to be accessible and so
that separate support can be provided when necessary. Install valves with stems pointed up, in
vertical position where possible, but in no case with stems pointed downward below horizontal
plane.
3.1.2 Insulation: Where insulation is indicated, install extended-stem valves, arranged in proper
manner to receive insulation.
3.1.3 Applications Subject to Corrosion: Do not install bronze valves and valve components in direct
contact with steel, unless bronze and steel are separated by dielectric insulator.
3.1.4 Mechanical Actuators: Install mechanical actuators as recommended by valve manufacturer.
3.2 Selection of Valve Ends (Pipe Connections): Except as otherwise indicated, select and install
valves with the following ends or types of pipe/tube connections:
3.2.1 Tube Size 2" and Smaller: Threaded valves.
3.2.2 Pipe Size 2" and Smaller: Threaded valves.
3.2.3 Pipe Size 2½" and Larger: Flanged valves.
3.3 Non-Metallic Disc: Limit selection and installation of valves with non-metallic disc to locations
indicated and where foreign material in piping system can be expected to prevent tight shutoff of
metal seated valves.
3.4 Renewable Seats: Select and install valves with renewable seats, except where otherwise
indicated.
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