This standard shall apply only to manually operated metallic valves, sizes NPS 1/2
through 2, which are suitable for controlling the flow of gas and have a pressure
rating not in excess of 125 psig. These valves may be used in piping systems
design and operated at pressures not in excess of the pressure rating marked on
the valve and in accordance with the Code of Federal Regulations, Title 49, Part
192, "Minimum Safety Standards for Transportation of Natural and Other Gas by
Pipe Line", ASME B31.8, or ANSI Z223.1. The standard shall apply to valves
operated in a temperature environment between -20 F and 150 F. This standard
sets forth the minimum capabilities, characteristics, and properties which a valve at
the time of manufacture must possess, in order to be considered suitable for use in
gas piping systems. Details of design and manufacture, other than those stated in
this standard, including such design and production tests that will produce a valve
that will have the required capabilities to meet this standard, remain the
responsibility of the manufacturer. Each test in which damage to the valve could
result, i.e.,Tests 3.3,.3.4.1, 3.4.2,3.4.3 and 3.4.4, shall be conducted on new unused
samples of the valve.
| ANSI : | ANSI Approved |
| Published : | 01/01/1990 |
