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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
iron body, bronze mounted (IBBM)
Energy; Natural gas
Common term for valves with cast iron body and bonnet and bronze trim (seating surfaces, stem, bushings).
iron body, bronze-mounted
Energy; Natural gas
A phraze used to describe a cast iron valve with bronze trim.
jame seat
Energy; Natural gas
A ball valve seat design in which the non-metallic seat rings are compressed (jammed) by the ball when the valve is assembled.
knife gate valve
Energy; Natural gas
A get valve design that is distinguished from the standard design by the use of a simple metal plate for the gate and the absence of a bonnet; also called a slide valve.
laminar flow
Energy; Natural gas
Fluid flow where fluid "particles" move in definite paths parallel to the overall direction of flow; also called viscous flow and streamline flow.
lantern ring
Energy; Natural gas
A metal spacer ring placed in a stem packing set so that it lines up with a leakoff connection in the bonnet; it divides the packing into an upper set and a lower set.
leakoff connection
Energy; Natural gas
A threaded hole through a valve bonnet wall in the area of the stuffing box; it is used to collect leakage past a lower packing set or to inject lubricant into the stuffing box.
