Since many chillers use almost infinitely variable screw compressors, an expansion valve that has the ability to follow these radical changes in capacity is required. Traditionally, mechanical ...

The average thermal expansion valve (TXV) replacement cost for an AC unit is $470, but the price can range from $185 to $750 depending on multiple factors. Why does this matter? A malfunctioning ...

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 ...

Existing commercial HVAC systems (7-10 years age) can benefit by converting mechanical expansion valves to DMQ’s EEV with autonomous valve control retrofit kit.

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 ...