furnished with manual overrides on solenoid valves for local manual
operation of the control valve.
2.10.2.2
Piping
Pipe furnished shall conform to the ASTM material specification specified
and meet the dimension standards set forth in ASME B36.10M. Piping
furnished shall be provided with the manufacturer's standard exterior
surface preparation and coating as necessary to prevent rusting during
shipping and storage. Random length pipe shipped to the jobsite shall be
identified continuously along its length indicating schedule number and
material. If this identification is in the form of a color code or colored
stripe, copies of the color code shall be submitted for approval. Each
piece of pipe shall be identifiable as to grade and schedule after
erection. Water pipe shall be carbon steel, conforming to ASTM A 53, Grade
A or B. Pipe sizes 50 mm 2 inches and smaller shall be Schedule 80. Pipe
sizes larger than 50 mm 2 inches shall be standard weight. Lime slurry
piping shall be Schedule 80 carbon steel, ASTM A 53, Revision B. Rubber
hose or rubber-lined pipe may be used for lime slurry where approved by the
Contracting Officer. Rubber hose and rubber-lined pipe shall be provided
complete with flanges. Except for tubing as specified, air pipe shall be
carbon steel, conforming to ASTM A 53, Grade A or B. Pipe 50 mm 2 inches
and smaller shall be Schedule 80. Pipe larger than 50 mm 2 inches shall be
standard weight. Instrumentation and air tubing shall be seamless, fully
annealed and suitable for bending. Steel tubing shall be 316 stainless
steel conforming to ASTM A 269, Grade TP 316. Copper tubing shall conform
to ASTM B 75M ASTM B 75. Minimum wall thickness of tubing shall be as
follows:
**************************************************************************
NOTE: Wall thickness selection depends on fluid,
media, and pressure.
**************************************************************************
Material
Diameter (mm)
Wall Thickness (mm)
Fluid
Steel
6
0.889
10
1.245
15
1.651
16
2.108
Copper
6
0.711
10
0.889
15
1.245
Material
Diameter (inch)
Wall Thickness (inch)
Fluid
Steel
1/4
0.035
3/8
0.049
1/2
0.065
5/8
0.083
Copper
1/4
0.028
3/8
0.035
1/2
0.049
2.10.2.3
Fittings
Screwed fittings shall be Class 300 malleable iron conforming to ASME B16.3.
Fittings shall be galvanized when used with galvanized pipe. Flanges
SECTION 15864N
Page 62
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