køleventiler

Køleventiler, often referred to as expansion valves or throttling devices, are essential components in refrigeration and air conditioning systems. Their primary function is to control the flow of refrigerant into the evaporator. This control is crucial for maintaining the desired temperature within the cooled space and for optimizing the efficiency of the refrigeration cycle.

There are several types of køleventiler, including thermostatic expansion valves (TXVs), automatic expansion valves (AEVs), and electronic expansion valves (EEVs). TXVs use a sensing bulb filled with refrigerant to detect the evaporator's superheat and adjust refrigerant flow accordingly. AEVs, on the other hand, maintain a constant evaporator pressure by regulating flow. EEVs are the most advanced, utilizing electronic sensors and actuators to provide precise control over refrigerant flow, leading to improved efficiency and performance across a wider range of operating conditions.

The proper functioning of a køleventil is vital for preventing liquid refrigerant from entering the compressor, which can cause severe damage. It also ensures that the evaporator is adequately supplied with refrigerant to absorb heat effectively, thus producing the desired cooling effect. Maintenance and correct sizing of køleventiler are therefore critical aspects of system design and upkeep.