The Danfoss 067N9531 Thermostatic Expansion Valve is a precision refrigerant control device designed for HVAC and refrigeration systems using R454B refrigerant. It regulates refrigerant flow into the evaporator by sensing superheat and automatically adjusting the valve opening to maintain optimal cooling performance. This valve is suitable for air-conditioning units, heat pumps, conde... https://www.partshnc.com/danfoss-067n9531-thermostatic-expansion-valve-r454b