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Expansion valve

   Also found in: Encyclopedia 0.02 sec.
(Steam Engine) a cut-off valve, to shut off steam from the cylinder before the end of each stroke.

See also: Expansion



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By using an ejector that rapidly injects and expands high-pressure refrigerant, the energy that previously was lost in the expansion valve is converted to pressure energy and reused, thus boosting energy efficiency[2].
DENSO Develops World's First Passenger Vehicle Refrigeration Cycle ... by JCN Newswires
Although most SEER 10 models use a fixed-bore metering device or a capillary-tube device, many SEER 13 models use a Thermal Expansion Valve (TXV or TEV) that meters the flow of refrigerant.
The 1-2-3s of the SEER 13 by Pierce, Kate / Units
Master-Bilt's Master Controller option controls an electric expansion valve in response to evaporator superheat and return air temperature.
Standex Food Service Equipment Group Wins 2007 National Restaurant ... by Business Wire
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