The basic components and function of a thermostatic expansion valve (TXV) continues to play a role in HVAC service. “Long, long ago in a faraway place, TXVs had very little impact on service ...
The best clearance between the two metal parts being brazed is a close one - usually .001 inch to .003 inch, and generally not more than .005 inch. If the clearance is smaller than .001 inch, there ...