Thermostatic Expansion Valves
(TEV Modules)

The Thermostatic Expansion Valve is the most extensively used type of metering device in Refrigeration and Air Conditioning. While it is without a doubt one of the most commonly used products in the Sporlan Line, it is often one of the least understood.

The purpose of this program is to familiarize wholesaler personnel with Sporlan Thermostatic Expansion Valves. Knowledge of these valves will help them deal more effectively with questions and problems that they encounter while assisting their contractor customers. Although some education regarding the theory of operation of the Thermostatic Expansion Valve within the refrigeration system is important to provide understanding of identification methods and proper selection criteria; it is not the purpose of Chill Skills to make an in-depth study of these principles. This information may also be found in Sporlan literature available at