13 Terms
Home > Industry/Domain > Energy > Natural gas
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
Add a new termContributors in Natural gas
Natural gas
Product analysis
Energy; Natural gas
The chemical analysis of a material done on a finished component to show compliance with the material specifications. Usually has tolerances defined for each element to allow for differences in the ...
Quarter-turn valve
Energy; Natural gas
A valve whose flow control element is rotated through 90deg from open to closed; it can be a ball valve, a butterfly valve, or a plug valve.
Quick-opening flow characteristic
Energy; Natural gas
A flow characteristic in which there are large changes in the flow rate at the start of flow control element travel (valve begins to open), with progressively smaller changes with flow control ...
Rack-and-pinion actuator
Energy; Natural gas
A line-rotary actuator tha uses a gear pinion a nd rack to convert linear motion into rotary motion for use in quarter-turn valves.
Radiographic inspection (RT)
Energy; Natural gas
A nondestructive inspection method using x-rays to locate internal flaws in castings, fabricated parts and welds.
Raised faced (RF)
Energy; Natural gas
The raised area of a flange face which is the gasket sealing surface between mating flanges. Defined in ASME B16.5. Class 150 and 300 valves have 0.06" RF and Class 600 and up have a 0.25" RF.
Reduced port
Energy; Natural gas
A valve port opening that is smaller than the line size or the valve end connexion size.
