substitution request - Alliance Construction Solutions

Project No.: 10145
550 15 th Street Dual Brand Hotel
03/16/2012
g. Steam and condensate lines.
h. Sanitary waste piping exposed to weather.
2. Piping Systems on which insulation is not required:
Piping System Type
a. Indoor/outdoor vertical storm water piping.
b. Chrome-plated exposed plumbing piping to sinks, toilets, etc. (except for
handicapped accessible lavatories).
c. Flexible connectors, air chambers, strainer and check valve bodies, drain
lines from water coolers, condensate lines, balancing cocks and flow
regulators located in conditioned spaces maintained above 50°F (chilled
water systems not included).
Minimum Insulation Thickness (in.) for Pipe Sizes
up to 1" 1-1/4"- 2" 2-1/2"- 4” 5"- 6" 8" & up
Domestic cold water piping. 0.5 0.5 1 1 1.5
Non-potable cold water piping 0.5 0.5 1 1 1.5
Domestic chilled water piping. 0.5 N/A N/A N/A N/A
Domestic hot water: supply,
recirculated and tempered.
Interior horizontal storm water
and overflow drain piping below
roofline, including roof drain
bodies.
Pumped storm water piping
exposed to weather, horizontal
and vertical.
1 1 1 1.5 2
0.5 0.5 0.5 1 1
1 1 1 1.5 1.5
Steam and condensate lines. 2 3 3 4 4
Sanitary waste piping exposed to
weather.
1.5 1.5 2 2 2
Note: For any piping not noted above to be exposed to outdoor ambient
temperatures, increase insulation thickness by 0.5 inches where installed in such
exposed locations.
3.03 EQUIPMENT INSULATION:
Table 1
Piping Insulation Schedule
A. Insulate equipment specified in Table 3 with the type and thickness of insulation shown:
Table 3
Equipment Insulation Schedule
22 0719 - 5 PLUMBING INSULATION