A thermostatic expansion valve (TEV) is a type of refrigeration device. TEVs are used in many types of commercial cooling systems and in some home air conditioners, too. They control the rate and volume of the liquid refrigerant going into the evaporator. TEVs receive and react to the evaporator’s temperature to adjust the refrigerant flow. As temperatures increase, so does pressure inside an AC system.
How is TEV different from other valves?
A thermostatic expansion valve differs from other valves in that it operates based on temperature rather than pressure, as with a solenoid-operated piston compressor valve or a gas-operated diaphragm compressor valve. It also differs from those types of valves by not requiring an external power source to operate—it relies on the pressure difference between two chambers at different temperatures to open or close the valve.
The TEV has several applications in commercial cooling systems and some residential air conditioners.
TEVs are used in many types of commercial cooling systems
TEVs are used in many types of commercial cooling systems and in some home air conditioners, too. In commercial refrigeration systems, they’re a safety feature that prevents damage to the compressor if the system is opened while it’s still pressurized. TEVs also help regulate pressure in a refrigeration system so that it doesn’t get too high or too low.
Considering how important it is to have this valve working properly, it’s important to have one that works right when you install it.
TEVs control the rate and volume of the liquid refrigerant
Thermostatic expansion valves (TEVs) are a type of control device that modulates the refrigerant flow to maintain the temperature of the evaporator at a constant level. The valve responds to the temperature of the evaporator by opening and closing its port in response to changes in pressure and liquid flow rate. This allows for precise control over both volume and flow rate, resulting in efficient operation.
TEV is a type of refrigeration device. It receives and reacts to the temperature of the evaporator to adjust the refrigerant flow. The TEV regulates temperature by reacting to pressure differences in liquid or gas caused by ambient conditions or load requirements changes.
As temperatures increase, so does pressure inside an AC system
A thermostatic expansion valve is the part of your air conditioner that regulates how much refrigerant flows through your evaporator coil during hot weather. It automatically opens or closes based on temperature changes inside the system.
In short: The more pressure, the more refrigerant is needed. The more refrigerant there is in a system, the more energy it takes to cool off a space. And since energy costs money, this can make ACs more expensive to run at high temperatures than at low ones.
A thermostatic expansion valve (TEV) is a refrigeration device. They are used in many commercial cooling systems and in some home air conditioners. TEVs control the rate and volume of the liquid refrigerant going into the evaporator. In this article, we went over what they do as well as how they work!