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factory-matched performance
to ensure consistent system proving without the risk of field-adjustment errors
ensuring hole-for-hole alignment
What is the purpose of the 3/8" side tapping
Trane VAL4222 TXV 319848-301 factory-matched performanceThe Trane VAL4222 TXV is a high performance thermostatic expansion valve engineered for precision refrigerant metering in R22 systems. Designed for 2. 5 ton capacity applications, this OEM component maintains optimal superheat by regulating the flow of R 22 refrigerant into the evaporator coil. The VAL4222 features a 3 8 inch inlet and a 1 2 inch outlet, making it a direct fit for many Trane residential split systems and light commercial air handlers.
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