Fit slip tube ends with forged steel pipe flanges or bevel for
welding into pipe line where indicated. Deliver joints complete
with packing and ready for installation.
b.
Ball Expansion Joints: Capable of 360 degrees rotation plus 15
degrees angular flex movement. Ball joints shall have steel
bodies and polished steel balls. Provide end connections to suit
class of piping hereinbefore specified. Seals shall be of
pressure molded composition designed for the working pressure.
Design joints for [1034] [2068] kPa (gage) [150] [300] psig
saturated steam working pressure. Cold set joints as necessary to
compensate for temperature at time of installation. Do not use
ball joints on superheated steam or on joints subject to frequent
flexure. Ball joints shall be installed in strict accordance with
recommendations of the manufacturer.
c.
Bellows Expansion Joints: ASTM F 1120 flexible guided type with
stainless steel expansion element, internal sleeves and external
covers. Joints shall be designed for a working pressure of [_____]
kPa (gage) psig and a temperature of [_____] degrees C F.
2.15.3.8
Pipe Hangers and Supports
MSS SP-58 and MSS SP-69, Type [_____] or Type [_____] of the adjustable
type, except as specified or indicated otherwise. Suspended steam and
condensate piping shall have pipe hangers Type [_____] with insulation
protection saddles Type [_____]. Provide insulated piping, except steam
and condensate piping, with insulation protection shields Type 40. Provide
bronze or copper plated collars on uninsulated copper piping. Support rods
shall be steel. Rods, hangers and supports shall be zinc plated, except
for uninsulated copper piping which shall be copper plated; cast iron
rollers, bases and saddles may be painted with two coats of heat resisting
aluminum paint in lieu of zinc plating. Axles for cast iron rollers shall
be stainless steel. Size hanger rods with a 150 percent safety factor for
a seismic design.
2.15.3.9
a.
Pressure and Vacuum Gages:
Conform to applicable requirements of
ASME B40.1.
b.
Indicating Thermometers: Liquid-in-glass or MIL-T-19646 dial
type. Thermometer shall include a separable immersion well.
2.15.3.10
Miscellaneous Pipeline Components
a.
Cold and Hot Water Meters: FS GG-M-2802 for maximum flow of
[_____] L/s at 38 degrees C gpm at 100 degrees F and reduced flow
of up to [_____] L/s at 121 degrees C gpm at 250 degrees F.
b.
Air Traps: Float controlled valves arranged to close properly
when water enters traps. Air traps shall conform to requirements
for float operated steam traps (non-thermostatic), FS A-A-60001,
except that valve mechanism shall be inverted so as to be closed,
not opened, by rising water.
c.
Steam Traps: FS A-A-60001. Inverted bucket high pressure steam
traps designed for use at [_____] kPa (gage) psig at [_____]
degrees C F. Low pressure steam traps shall be float and
SECTION 15501N
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