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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
Ambient temperature
Energy; Natural gas
The temperature of the environment surrounding a valve, normally ranging from -20degF to 100degF
Angle valve
Energy; Natural gas
A globe valve whose ends are perpendicular to each other, rather than parallel; one end is directly below the disc.
Arithmetic average roughness height (Ra)
Energy; Natural gas
The measure of the roughness of a surface expressed in microinches. The higher the number, the rougher the surface. Used to designate the desired surface finish for end flange raised faces.
Austenitic stainless steel
Energy; Natural gas
The common stainless steel, where the primary microstructure is austenite and the composition primarily iron but also includes both chromium and nickel. The steels are designated as 300 series such ...
Backseat
Energy; Natural gas
An auxiliary seat in the bonnet to enable packing replacement while the valve is under pressure.
Ball cheque valve
Energy; Natural gas
A lift cheque vavle whose flow control element is a solid ball.