3.1.6
Non-Metallic Piping
Non-metallic piping shall be installed in accordance with pipe
manufacturer's instruction.
3.1.7
Welding
3.1.7.1
Welding of Piping
Welding of joints in piping, butt welds, fillet welds, bends, loops,
offsets, and cleaning of pipe shall be in accordance with ASME B31.1. Welds
shall be visually examined and meet acceptance standards specified in
Chapter VI of ASME B31.1.
3.1.7.2
Quality of Welds
Quality of welds, correction of defects, stress relieving, and preheating
shall be in accordance with ASME B31.1.
3.1.7.3
Arc Welding and Gas Welding
In accordance with ASME BPVC SEC IX.
3.1.8
Unions and Flanges
Place unions and flanges where necessary to permit easy disconnection of
piping and apparatus. Each connection having a threaded end valve shall
have a union.
3.1.9
Valves
Install valves in positions accessible for operation and repair.
3.1.10
Thermometers
Provide thermometers and thermal sensing elements of control valves with
separable sockets. Install separable sockets in pipe lines in such a
manner to sense the temperature of flowing fluid and minimize obstruction
to flow.
3.1.11
Fuel Oil Storage Tanks
Install storage tanks, vents and other connections in accordance with NFPA
30, NFPA 31, recommendations and published instructions of the
manufacturer, and as indicated. Provide grounding of tanks directly
through ground rods or through bonding to grounded network in accordance
with NFPA 780. Fasten aboveground fuel oil tanks on a firm reinforced
concrete foundation. Provide fireproofed steel supports between tank and
foundation. Concrete shall have a compressive strength of [_____] MPa psi,
[20] [_____] mm [3/4] [_____] inch maximum aggregate size and [80 to 100]
[3 to 4] [[_____] to [_____]] mm inch slump. Materials for sand, gravel,
and concrete shall meet requirements specified in Section [03300N
CAST-IN-PLACE CONCRETE] [Short Form 03300N CAST-IN-PLACE CONCRETE].
3.2
FIELD QUALITY CONTROL
Prior to application of test pressure, remove or valve off piping
components which may be damaged by test and install a calibrated test gage
in the system. Maintain test pressure for at least one hour. In the event
SECTION 15192N
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