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Pilot Model Expansion Tube (9442999705) An expansion tube is a type of impulse facility that is conceptually similar to a shock tube with a secondary diaphragm, an expansion section, a test section, and a dump tank where the endwall would be located in a shock tube. [1]
The flexible tubing will tend to degrade with time and require periodic replacement. The flow is pulsed, particularly at low rotational speeds. Therefore, these pumps are less suitable where a smooth consistent flow is required. In applications that require smooth flow, an alternative type of positive displacement pump should then be considered.
An expansion tank or expansion vessel is a small tank used to protect closed water heating systems and domestic hot water systems from excessive pressure. The tank is partially filled with air, whose compressibility cushions shock caused by water hammer [ citation needed ] and absorbs excess water pressure caused by thermal expansion .
In aeronautics, expansion and shock tunnels are aerodynamic testing facilities with a specific interest in high speeds and high temperature testing. Shock tunnels use steady flow nozzle expansion whereas expansion tunnels use unsteady expansion with higher enthalpy, or thermal energy. In both cases the gases are compressed and heated until the ...
In the US, several different brands are available: Sharkbite, PlumBite, Nibco Push, which are all brass, demountable, similar to the Pegler Tectite design. Some fittings are only designed for plastic (PEX and PERT) pipe and are non-removable. In the US, Legend Valve make a single-use push-fit system, and Sharkbite have one called EvoPex.
The ED nozzle has been known about since the 1960s and there has been several attempts to develop it, with several reaching the level of static hot-firings. These include the 'Expansion-Deflection 50k' [2] (Rocketdyne), the 'Expansion-Deflection 10k' [3] and the RD-0126 [4] (CADB). Rocketdyne also developed a third, smaller E-D nozzle.