This standard applies to newly produced manually operated shut-off valves for gas piping systems and constructed of entir ely new, unused parts and materials which:
(a) are intended for use downstream of the distributors meter or regulator, for operation at a maximum pressure of 1/2 psig (3.4 kPa),
(b) are capable of operation at ambient temperatures between 32°F (0°C) and 125°F (52°C) and in addition are also capable of operation at a higher temperature, a lower temperature or both when so specified by the manufacturer,
(c) are valves substantially of the plug and body, or rotating disc type, and valves of other types which will provide equivalent performance.
(a) are intended for use downstream of the distributors meter or regulator, for operation at a maximum pressure of 1/2 psig (3.4 kPa),
(b) are capable of operation at ambient temperatures between 32°F (0°C) and 125°F (52°C) and in addition are also capable of operation at a higher temperature, a lower temperature or both when so specified by the manufacturer,
(c) are valves substantially of the plug and body, or rotating disc type, and valves of other types which will provide equivalent performance.
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