Expansion valve

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(Steam Engine) a cut-off valve, to shut off steam from the cylinder before the end of each stroke.

See also: Expansion

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
It comes with screw compressor; variable-flow evaporator, centrifugal fan, and electronic expansion valve.
The Midea team spent nine years to solve all technical problems and develop core components, including the R-290 compressor, the heat exchanger, and the electronic expansion valve and formed the unique flow routes, variable frequency electrical control and safety protection schemes.
In the traditional control process of cold storage refrigeration system, the compressor, condenser, evaporator, expansion valve, and other main components are controlled separately [5].
The expansion valve used after the condenser expands refrigerant just into the two-phase region.
The vast majority of SISO controllers use the expansion valve to regulate evaporator superheat.
The thermostatic expansion valve (TEV) has only one function in the system: to meter the proper amount of refrigerant to the evaporator coil by controlling superheat at the bulb location.
An electronic expansion valve further elevates energy savings by efficiently modulating refrigerant flow in the evaporator coils.
An electronic expansion valve plays an important role in a smart chiller that Dometic has been contracted to supply Trinity Yachts.
While the use of the electronic expansion valve allows for energy saving control strategies, the complexity of this subassembly requires a larger bill of materials and extra effort in fabrication when compared to a simple piston expansion device integrated into a check valve.
The expansion valve is located near the evaporator inlet.
Its inverter air conditioners reduce energy consumption through its proprietary energy-saving technologies and increases performance efficiency using high power DC motors Electronic Digital Control for the compressor and outdoor fan and a pulse linear expansion valve.
It leaves the condenser at 4.7 bar and enters the first expansion valve and from the expansion valve into an economizer drum where it flashes at an intermediate pressure of 3.3 bar.