shall be forged, flared for improved flow where attached to the run,
reinforced against external strains, and designed to withstand full
pipe-bursting strength.
2.1.9.2
Joints for connection to valves in high or medium temperature water system
shall be welded or flanged, faced true, provided with gaskets, and made
perfectly square and tight. Flanges shall be forged steel, raised face,
weld-neck type. Slip-on flanges will not be allowed. Gaskets for [HTW]
[MTW] systems shall be [metallic asbestos] [_____].
2.1.10
Hangers and Supports
ASME B31.1, MSS SP-58, MSS SP-69, and as specified herein.
2.1.11
Pipe Sleeves
Schedule 80 steel pipe, and as specified herein.
2.1.12
Calking and Sealants
Materials as recommended by the manufacturer for the service specified
herein.
2.1.13
2.1.13.1
Pressure Gages
ASME B40.1, with corrosion resistant steel trim for high temperature water
service. Dial range shall be 0 kPa psi to the system design pressure
specified herein. Provide stainless steel isolation petcock.
2.1.13.2
Indicating Thermometers
Thermometers shall be dial type with an adjustable angle suitable for the
service. Provide thermowell sized for each thermometer in accordance with
the thermowell specification. Fluid-filled thermometers (mercury is not
acceptable) shall have a nominal scale diameter of 127 mm 5 inches.
Construction shall be stainless-steel case with molded glass cover,
stainless-steel stem and bulb. Stem shall be straight, length as required
to fit well. Bimetal thermometers shall have a scale diameter of 90 mm 3
1/2 inches. Case shall be hermetic. Case and stem shall be constructed of
stainless steel. Bimetal stem shall be straight and of a length as required
to fit the well.
2.1.14
System Terminal Units
2.1.14.1
Heat Exchanger, [HTW][MTW]
**************************************************************************
NOTE: Since the hot water heat exchanger and
associated hot water piping is specified in Section
15185, and high or medium temperature water piping
herein, coordination for the heat exchanger details
indicating arrangement of piping is necessary.
Avoid redundancy between Section 15184, Section
15185, and other related specifications sections.
When paragraph entitled "Pressure Gages" is used,
SECTION 15184N
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