WASHINGTON, DC – The VMA Valve Basics Seminar and Petting Zoo comes to Pasadena, TX, November 9-11, 2022. This is the first time the program is offered in person since 2019, and has some new content ...

The function of the thermostatic expansion valve (TXV or TEV) is to hold a constant evaporator superheat. When set and operating properly, the TXV will keep the evaporator active throughout its entire ...