How TXV works - Thermostatic expansion valve working principle, HVAC Basics vrv heat pump

The video tutorial explains the function and components of a Thermal Expansion Valve (TXV), commonly used in refrigeration systems. It covers the valve's location, its role in controlling refrigerant flow, and the importance of pressure reduction for boiling at lower temperatures. The tutorial also details the main components of a TXV, such as the valve body, diaphragm, and sensing bulb, and explains how these parts work together to regulate refrigerant flow. An example is provided to illustrate the valve's operation, including adjustments for superheat. The video concludes with a discussion on automatic operation and potential issues if the valve malfunctions.

What happens to the refrigerant as it passes through the TXV?

Explain the role of the sensing bulb in the TXV.

What could happen if the TXV is not functioning properly?