Pneumatic FRL unit is a device that is used in compressed air systems to filter, regulate, and lubricate the air supply. FRL stands for Filter, Regulator, and Lubricator. The unit typically consists of three components: a filter, a regulator, and a lubricator, each with its own specific function.The filter removes contaminants such as dust, dirt, and oil from the compressed air, preventing them from reaching downstream equipment and causing damage or malfunction. The regulator controls the pressure of the air, ensuring that it is delivered at a consistent and safe level. The lubricator adds a small amount of oil to the air stream, which helps to lubricate downstream components and extend their lifespan.