bolts, and insulating washers for flange nuts.
2.1.14
Flexible Connectors
Flexible connectors for connecting gas utilization equipment to building
gas piping shall conform to ANSI Z21.24. Flexible connectors for movable
food service equipment shall conform to ANSI Z21.69.
2.2
VALVES
Valves shall be suitable for shutoff or isolation service and shall conform
to the following:
2.2.1
Valves 50 mm 2 Inches and Smaller
Valves 50 mm 2 inches and smaller shall conform to ASME B16.33 and shall be
of materials and manufacture compatible with system materials used.
2.2.2
Valves 65 mm 2-1/2 Inches and Larger
Valves 65 mm 2-1/2 inches and larger shall be carbon steel conforming to
API Spec 6D, Class 150.
2.3
PIPE HANGERS AND SUPPORTS
Pipe hangers and supports shall conform to MSS SP-58 and MSS SP-69.
2.4
METERS, REGULATORS AND SHUTOFF VALVES
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NOTE: Interior and exterior meter, pressure
regulator and shutoff valve will be specified in
Section 02556A GAS DISTRIBUTION SYSTEM. If that
section is not a part of the contract specifications
applicable paragraphs should be specified in this
specification.
**************************************************************************
Meters, regulators and shutoff valves shall be as specified in Section
02556A GAS DISTRIBUTION SYSTEM.
PART 3
EXECUTION
3.1
EXCAVATION AND BACKFILLING
Earthwork shall be as specified in Section 02300 EARTHWORK.
3.2
GAS PIPING SYSTEM
Gas piping system shall be from the point of delivery, defined as the
outlet of the [meter set assembly] [service regulator] [shutoff valve],
specified in Section 02556A GAS DISTRIBUTION SYSTEM, to the connections to
each gas utilization device.
3.2.1
Protection of Materials and Components
Pipe and tube openings shall be closed with caps or plugs during
installation. Equipment shall be protected from dirt, water, and chemical
or mechanical damage. At the completion of all work, the entire system
SECTION 15190A
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