Project Name
Project Number
TEMF
Statement of Work
UFC 4-214-02, 24 Jul 03
"DELETED" if not applicable and delete remainder of text in all paragraphs.] Prefabricated
piping system shall be installed to supply and return heating hot [and chilled] water to
mechanical equipment rooms. Metallic pressure pipe, fittings, and piping accessories shall
conform to the requirements of ASME B31.1 and shall be types suitable for the temperature and
pressure of the water.
4-15.1
Piping materials.
4-15.1.1 Steel pipe. Piping shall conform to ASTM A 53, Grade B, standard weight, black or
to ASTM A 106, Grade B, standard weight.
4-15.1.2
Copper tubing. Copper tubing shall conform to ASTM B 88, Type K or L.
4-15.1.3
Reinforced Thermosetting Resin Pipe (RTRP). RTRP pipe shall conform to ASTM D
5686.
4-15.1.4 Polyvinyl Chloride (PVC) Pipe. PVC pipe shall conform to ASTM D 2241 with a
Standard Thermoplastic Pipe Dimension Ratio (SDR) of 26 and PVC 1120 or 1220 as the
material.
4-15.2
Casing materials.
4-15.2.1 Polyvinyl Chloride (PVC) Casing. PVC casings shall conform to ASTM D 1784,
Class 12454-B with a minimum thickness equal to the greater of 1/100 the diameter of the
casing or 1.50 mm [60 mils].
4-15.2.2 Polyethylene (PE) Casing. Polyethylene casings shall conform to ASTM D 1248,
Type III, Class C, Category 3 or 4, Grade P 34 with thickness as follows:
Casing Diameter
Minimum Thickness
(in mm)
(in mm)
250 and smaller
3
250 to 450
4
450 to 600
5
over 600
6
4-15.2.3 Reinforced Thermosetting Resin Pipe (RTRP) Casing. RTRP casing shall be of the
same material as the pipe, with casing thickness as follows:
Casing Diameter
Minimum Thickness
(in mm)
(in mm)
200 and smaller
1.2
250
2.0
300
2.7
350
2.9
400 to 450
3.0
500
3.2
600
3.9
4-15.3
End seals. Each preinsulated section of piping shall have a complete sealing of the
insulation to provide a permanent water and vapor seal at each end of the preinsulated section
of piping. Preinsulated sections of piping modified in the field shall be provided with an end seal
which is equivalent to the end seals furnished with the preinsulated section of piping. End seals
must be tested and certified in accordance with manufacturer's recommendations.
SOW-55
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