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Thread: Pressure Balancing in TXV
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03-06-2015, 06:33 PM #1
Pressure Balancing in TXV
@http://www.ac-heatingconnect.com/how-thermostatic-expansion-valves-txv-work/
Above link indicates that condenser pressure or the inlet pressure to TXV also is a parameter in pressure balancing equation
TXV Pressure Balance EquationTXV
P1+P4 = P2+P3
P1 = Bulb Pressure (Opening Force)
P2 = Evaporator Pressure (Closing Force)
P3 = Superheat Spring Pressure (Closing Force)
P4 = Liquid Pressure (Opening Force)
...My question is this equation universal or is design dependent. By the look of the valve operation I beileve the former is true but why many others aren't involving condenser pressure