TABLE II.
FITTINGS
Service
Size
Title
Materials
Specification
Feedwater
Under
Threaded
Malleable-iron ASME B16.3
pipe
80 mm
Buttwelded
Steel
ASME B16.9
80 mm &
larger
Drain lines
All
Buttwelded
Steel
ASME B16.9
(1) & HTW
Socket
Steel
ASME B16.11
lines
welded
Flanged with
Steel
ASME B16.5
long radius
elbows
Water column
Under
Threaded
Malleable-iron
ASME B16.3
piping (1)
80 mm
Gauge pipe
All
Flared or
Cast or wrought ASME B16.18
soldered
bronze
ASME B16.26
TABLE II.
FITTINGS
Service
Size
Title
Materials
Specification
Vent pipe
Under
Threaded
Malleable-iron
ASME B16.3
3-inches
Buttwelded
Steel
ASME B16.9
3-inches &
larger
Compressed
Under
Threaded
Zinc-coated
ASME B16.3
air
3-inches
malleable-iron
Under
Threaded
Zinc-coated
ASME B16.3
3-inches
malleable-iron
3-inches &
Buttwelded
Steel
ASME B16.9
larger
Boiler
Under
Threaded
Malleable-iron
ASME B16.3
feed (1)
3-inches
Buttwelded
Steel
ASME B16.9
3-inches &
larger
Feedwater
Under
Threaded
Malleable-iron
ASME B16.3
pipe
3-inches
Buttwelded
Steel
ASME B16.9
3-inches &
larger
Drain lines
All
Buttwelded
Steel
ASME B16.9
(1) & HTW
Socket
Steel
ASME B16.11
lines
welded
Flanged with
Steel
ASME B16.5
long radius
elbows
Water column
Under
Threaded
Malleable-iron
ASME B16.3
piping (1)
3-inches
SECTION 15555A
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