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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
bubble tight
Energy; Natural gas
A phrase used to describe the tightness of valve seating surfaces. It derives from a seat tightness test in which compressed air is used for the test. with water on the downstream side of the seat so ...
bolted bonnet
Energy; Natural gas
A body-bonnet joint design in which the bonnet is fastened to the body using studs or bolts and nuts; it uses a gasket to provide joint sealing.
butt weld end
Energy; Natural gas
A valve end machined to the proper dimensions to enable butt welding to connecting pipe.
bolted construction
Energy; Natural gas
Describes a valve construction in which the pressure shell elements (such as body and closures of a trunnion ball valve) are bolted together and so can be taken apart and repaired in the field.
butterfly valve
Energy; Natural gas
A valve whose flow control element is a disc with an axis perpendicular to flow and that rotates 90deg from open to closed.
bonnet
Energy; Natural gas
The part of a gate valve, globe valve, or diaphragm valve that is fastened to the body to complete the pressure-retaining shell; it has on opening for the stem to pass through, and it usually ...
bypass
Energy; Natural gas
A short pipeline, containing a sop valve, that is mounted on a valve to connect the inlet and the outlet and bypass the flow control element.
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