NOTE: Choose one of the options below.
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[[Bronze] [Steel] body ball valve in accordance with ANSI B16.33, full port
pattern, reinforced PTFE seals, threaded ends, and PTFE seat.]
[[Bronze] [Steel] body plug valve in accordance with ANSI B16.33,
straightway, taper plug, regular pattern with a port opening at least equal
to the internal pipe area or round port full bore pattern, non-lubricated,
PTFE packing, flat or square head stem with lever operator, 860 kPa (gage)
125 psig rating, threaded ends.]
2.5.3
Self-contained with spring-loaded diaphragm pressure regulator, kPa to mm
psig to inches water reduction, pressure operating range as required for
the pressure reduction indicated, volume capacity not less than indicated,
and threaded ends for sizes 50 mm 2 inches and smaller, otherwise flanged.
2.5.4
Earthquake Automatic Gas Shutoff Valve
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NOTE: Provide this earthquake protective feature
primarily for seismic zones 3 and 4.
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ANSI Z21.70 and UL listed or AGA listed or International Association of
Plumbing and Mechanical Officials (IAPMO) listed. The valve may be either
pendulum or ball construction with [remote [, pneumatic] [electronic] [or]
[electric]] actuator.
2.6
GAS METER
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NOTE: Do not use cast-iron material for valve body
or gas-meter body in seismic zones 3 and 4.
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[ANSI B109.1] [ANSI B109.2] [ANSI B109.3] [pipe] [pedestal] mounted,
[diaphragm] or [bellow] [style], [cast-iron] [enamel coated steel]
[aluminum] case. Provide combined register totalizer, water escape hole in
housing, and means for sealing against tampering.
2.7
GAS EQUIPMENT CONNECTORS
a.
Flexible Connectors:
ANSI Z21.45.
b.
Quick Disconnect Couplings:
ANSI Z21.41.
c.
Semi-Rigid Tubing and Fittings:
ANSI Z21.69.
2.8
VALVE BOX
Provide [street valve box with cast-iron cover and two-piece 130 mm 5 1/4
inch shaft-slip valve box extension] [rectangular concrete valve box, sized
large enough for removal of valve without removing box]. Cast the word
"Gas" into the box cover. Use valve box for areas as follows:
a.
Roads and Traffic Areas:
Heavy duty, cast iron cover.
SECTION 15195N
Page 12
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