Electronic Expansion Valve OR Thermal Expansion Valve
The expansion valve is one of the most important components of a chiller, so what is the difference between a thermal expansion valve and an electronic expansion valve?
| Item | Electronic Expansion Valve | Thermal Expansion Valve |
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| control mode | adjust the opening in real time through electronic controller and sensor, and the control is precise. | rely on the temperature sensing package to sense the evaporator outlet temperature, automatically adjust the opening, and the control is relatively simple. |
| Response speed | respond quickly and can quickly adapt to system changes. | respond slowly and depend on temperature changes. |
| Accuracy | high control accuracy and can achieve complex adjustment. | low accuracy and limited adjustment range. |
| Complexity | complex structure and requires support from electronic control system. | simple structure and no external control required. |
| Cost | high | low |
| Applicable scenarios | suitable for high-precision and fast-response systems, such as variable-frequency air conditioners. | suitable for systems with low control requirements, such as ordinary household air conditioners. |