Nordyne 920673A TXV 30067439-890 The SA63-30 is rated for

The SA63-30 is rated for use in systems with a maximum boiler pressure of 50 psi (3

With a substantial 55 in-oz torque rating

and multi-stage thermostats

While originally optimized for R-22

Nordyne 920673A TXV 30067439-890 The SA63-30 is rated forThe Nordyne 920673A TXV is a critical metered flow component designed specifically for TR6 R410A 5 ton air conditioning and heat pump systems. Built to survive the high pressures of modern R410A circuits, this thermostatic expansion valve prevents compressor liquid slugging by maintaining precise superheat at the evaporator outlet. Unlike a basic fixed orifice, the 920673A features a balanced port design that compensates for varying head pressures,