TABLE II.
FITTINGS
mm Service
Size
Title
Materials
Specification
piping (2)
Under
Threaded
Malleable-iron
ASME B16.3
80 mm
Fuel oil
All
Threaded
Malleable-iron
ASME B16.3
Flared or
Cast or wrought
ASME B16.18
brazed
bronze
ASME B16.26
Plastic
FRP
Compatible
with pipe
API Spec 15LR
Gauge pipe
All
Flared or
Cast or wrought
ASME B16.18
soldered
bronze
ASME B16.26
TABLE II.
FITTINGS
inches Service
Size
Title
Materials
Specification
Steam (1)
Under
Threaded
Malleable-iron
ASME B16.3
3-inches
Under
Threaded
Steel
ASME B16.11,
3-inches
3-inches
Flanged
Steel
ASME B16.5
& larger
1/4-inch
Buttwelded
Steel
ASME B16.9
& larger
Condensate
Under
Threaded
Cast-iron
ASME B16.4,
return
3-inches
Black, Class 250
Under
Threaded
Malleable-iron
ASME B16.3,
3-inches
Class 300
Under
Threaded
Brass or Bronze
ASME B16.15
3-inches
3-inches &
Buttwelded
Steel
ASME B16.9
larger
extra strong
Vent pipe
Under
Threaded
Malleable-iron
ASME B16.3
3-inches
3-inches
Buttwelded
Steel
ASME B16.9
& larger
Under
Threaded
Zinc-coated
ASME B16.3
pipe
3-inches
malleable-iron
3-inches
Buttwelded
Steel
ASME B16.9
& larger
Boiler
Under
Threaded
Malleable-iron
ASME B16.3
feed (2)
3-inches
3-inches
Buttwelded
Steel
ASME B16.9
& larger
Feedwater
Under
Threaded
Malleable-iron
ASME B16.3
pipe
3-inches
3-inches
Buttwelded
Steel
ASME B16.9
SECTION 15559A
Page 114
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