The HVAC industry has seen a significant increase in thermostatic expansion valve (TXV) usage in the past decade. In 2006, the U.S. Department of Energy (DOE) set new standards for newly manufactured ...

My article in the Aug. 2 issue of The News reviewed conventional thermostatic expansion valves (TEVs or TXVs) and covered the basic operation of electronic expansion valves (EEVs). This column will ...

When we last spoke to the people at Microstaq Inc., maker of the silicon Ventillum microelectromechanical systems (MEMS) expansion valve IC, they were busy addressing the requirements of the HVAC ...

AUSTIN, Texas, May 18, 2021 (GLOBE NEWSWIRE) -- DunAn Microstaq, Inc. (DMQ), a MEMS technology company that innovates flow control solutions primarily for the HVAC, refrigeration and automotive ...