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Testing TXV's

Posted: Sat Jul 16, 2016 6:06 pm
by Dougflas

Re: Testing TXV's

Posted: Sun Jul 17, 2016 1:45 pm
by greenquark
Question: Must the test be with compressed aire only? Or it must have the same output with any source of air? Let say : With a small pump, or even bow it with the mouth?

Re: Testing TXV's

Posted: Mon Jul 18, 2016 6:02 am
by Dougflas
this test is with the system being under a condition of charged. Make sure vehicle has run for 10 minutes or so the stabilize the refrigerant syatem.

Re: Testing TXV's

Posted: Mon Jul 18, 2016 11:33 am
by greenquark
Dougflas wrote:this test is with the system being under a condition of charged. Make sure vehicle has run for 10 minutes or so the stabilize the refrigerant syatem.



Huh? The pdf does not describe that. I am referring to the right angle Tvx. It says remove the Tvx.

Re: Testing TXV's

Posted: Mon Jul 18, 2016 12:18 pm
by Dougflas
And I was referring to the on vehicle test. Yes, you can use dry shop air.

Re: Testing TXV's

Posted: Fri Oct 27, 2017 3:48 am
by AdmissionPro456
A thermostatic expansion valve (TXV) is built up around a thermostatic element separated from the valve body by a diaphragm. Its purpose is to regulate the rate at which refrigerant flows into the evaporator.

TXVs can contain one of three different types of charge:

universal charge
Maximum operating pressure (MOP) charge.
MOP charge with ballast (standard for Danfoss expansion valves with MOP).











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