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The Lowe process is a three-stage modified water gas process in which 'blue' water gas is modified by addition of pyrolized oils to render a yellow flame usable for domestic lighting as well as heating. Blue water gas is a term used for water gas produced from clean-burning fuels such as anthracite, coke and charcoal and produces a blue flame.
Thermal cut-off valve (TV), which: prevents excessive temperatures. closes automatically at a certain temperature and cuts off the gas flow long before the ignition temperature of the gas mixture is reached. and a pressure-sensitive gas cut-off valve (PV), which stops the gas flow in the event of pressure shocks
A safety shutoff valve should be fail-safe, that is close upon failure of any element of the input control system (such as temperature controllers, steam pressure controllers), air pressure, fuel pressure, current from a flame detector, or current from other safety devices such as low water cutoff, and high pressure cutoff. A blowdown valve ...
Larner–Johnson Valve: needle control valve often in large sizes used in water supply systems; Leaf valve: one-way valve consisting of a diagonal obstruction with an opening covered by a hinged flap; Line blind valve: a thin sheet oriented perpendicular to the pipe. The sheet has a solid end and a flow-through end; sliding it from one position ...
The Union Army Balloon Corps was a branch of the Union Army during the American Civil War, established by presidential appointee Thaddeus S. C. Lowe.It was organized as a civilian operation, which employed a group of prominent American aeronauts and seven specially built, gas-filled balloons to perform aerial reconnaissance on the Confederate States Army.
Neck – A coaxial cylindrical extension of the shoulder with a threaded hole into which the cylinder valve or a gas pipe connection is fitted. [4] Boss – A sturdy insert, usually in the centre of the shoulder, into which a valve or gas pipe connection is fitted. [4] Base or foot – The end of the shell opposite the shoulder. [4]