substitution request - Alliance Construction Solutions

1. Copper Tube – 2” and smaller: Soldered ends, except in heating hot water and
low pressure steam service, where threaded ends shall be used.
2. Steel Pipe – 2” and smaller: Threaded or grooved-end.
3. Steel Pipe – 2-1/2” and larger: Flanged or grooved-end.
4. At all piping hot taps, provide a gate valve at the hot tap and a butterfly valve for
shut-off service. Hot taps shall be provided only where approved by the Engineer.
3.03 VALVE INSTALLATIONS:
Valve Application Table
SERVICE VALVE TYPE
Plumbing Water Services – 2” and Ball Valve
smaller
Plumbing Water Services – 2-1/2” Butterfly Valve
and larger
Plumbing Pressure Reducing Bypass – Ball Valve
2” and smaller
Plumbing Pressure Reducing Bypass – Butterfly Valve
2-1/2” and larger
Plumbing Balancing – 2” and Calibrated Balancing Valve
smaller
Plumbing Balancing – 2-1/2” Eccentric Plug Balancing Valve
and larger
Plumbing Check Valves – 2” Swing Check
and smaller
Plumbing Pump Discharge Non-Slam Swing Check
Check Valve – all sizes
Sewage Ejector and/or Sump Pump Swing Check
Discharge Check Valve – all sizes
Condensate Piping Shut-off – 2” Ball Valve
and smaller
A. Locate valves for easy access, and provide separate support where necessary.
B. Install valves and unions for each fixture and item of equipment in a manner to allow
equipment removal without system shut-down. Unions are not required on flanged
devices.
C. Install 3-valve bypass around each pressure-reducing valve using throttling type valves.
D. Gate and globe valves shall be installed with the stem in the upright position. In overhead
horizontal piping, ball valves shall be installed with the handle at the side or bottom of the
Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
220523 - 7 GENERAL-DUTY VALVES FOR
PLUMBING PIPING