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Natural gas
Natural gas is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, with up to 20 % of other hydrocarbons as well as impurities in varying amounts such as carbon dioxide. Natural gas is widely used as an important energy source in many applications including heating buildings, generating electricity, providing heat and power to industry, as fuel for vehicles and as a chemical feedstock in the manufacture of products such as plastics and other commercially important organic chemicals.
Industry: Energy
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Natural gas
negative position
Energy; Natural gas
The installation position of a multiport valve such that fluid inlet pressure can be into a closed body opening, thereby retarding vavle sealing.
nominal pipe size (NPS)
Energy; Natural gas
Dimensionless number used to indicate sizes of pressure pipe and valves - used interchangeably with valve size in inches.
closure
Energy; Natural gas
The ends of a bolted construction ball valve, bolted to the body, which often contain the seat rings.
closure element
Energy; Natural gas
The moving part of a valve, positioned in the flow stream, which controls the flow through the valve, e.g., wedge, plug, clapper, ball.
cold working pressure (CWP)
Energy; Natural gas
The maximum allowable pressure under non-shock conditions at ambient temperature ( -20° F to +100° F).
