a spiral screw which turns within a tube or pipe in order to move material. When set on an inclined angle can be used to raise water. A very ancient method.
non-metallic pipe made by combining an interwoven structure of threads of cellulose material with a bituminous material such as asphalt. Usually spelled fibre. Used for sewers and drains, sleeves and conduits between 1949 and 1971
a short tube that is inserted in a pipeline, that has flaring ends connected by a constricted middle section forming a throat that depends for operation upon the fact that as the velocity of flow of a liquid increases in the throat the pressure decreases. Used for measuring the quantity. Devices for measuring airspeed, and […]
a pumping machine in which pressure is created as the liquid or gas is moved outward from center by the rotary motion of the impeller.
the maximum pressure in a water piping system or its appurtenances allowable under normal working conditions (i.e.: the maximum pressure a storage tank can be subjected to under normal working conditions).
a hood on the top of a vent pipe or similar device.
a fitting used on the terminal of the vent, waste or soil stacks to guard against falling objects and vandalism.