válvula de expansion termostatica con igualador externo
valvula de expancion termostatica con igualador interno
en sistemas pequeños donde no se considera caída de presión a través del evaporador, la presión del evaporador que se usa para que
actúe debajo del diafragma es la de la entrada. Para esto, las válvulas empleadas, tienen maquinado un conducto interno que comunica el lado de baja presión de la válvula con la parte inferior del diafragma. A este conducto se le conoce como igualador Interno. En algunos tipos de válvulas, la presión del evaporador también se aplica bajo el diafragma, a través de los conductos de las varillas de empuje, ade
más del igualador interno.
traducción a english
thermostatic expansion valve with external equalizer
Thermostatic expansion valve with external equalizer: when there is pressure drop through the evaporator, the pressure must act under the diaphragm is to the evaporator outlet. The valves used in these cases are valves with "external equalizer." in this type of valve the equalizer does not inform the diaphragm with the evaporator inlet, but this conduit is removed from the valve body by a connection, which is usually ¼ "flare. In addition, it is necessary to place packaging around pushrods, to completely isolate the underside of the diaphragm pressure to the evaporator inlet. once the valve installed, this connection is communicated to the suction line by a capillary tube, so that the pressure acting beneath the diaphragm , is that of the evaporator outlet.
thermostatic valve with internal equalizer expancion
in small systems where it is not considered pressure drop through the evaporator, the evaporator pressure used for
acting under the diaphragm is the input. For this, the valves employed have machining an internal conduit communicating the low pressure side of the valve with the bottom of the diaphragm. This line is known as Internal equalizer. In some types of valves, the evaporator pressure is also applied under the diaphragm through ducts pushrods, ade
more internal equalizer.
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