What is the function of low loss fittings in refrigerant recovery devices?

Low loss fittings serve the essential function of preventing the escape of refrigerant when the connection to the refrigerant recovery device is disconnected. These fittings are specifically designed to minimize the amount of refrigerant that can be released into the atmosphere during maintenance or service operations. By effectively sealing the connection points, low loss fittings help ensure that the refrigerant remains contained, which is not only crucial for environmental protection but also conforms to regulatory standards related to refrigerant handling.

This feature is particularly important because it supports efforts to reduce greenhouse gas emissions and promote responsible refrigerant management. Other fittings might not have the same effectiveness in sealing, leading to potential losses of refrigerant and non-compliance with regulations governing refrigerant recovery.

The other options, while related to aspects of refrigerant handling, do not accurately reflect the primary function of low loss fittings. For instance, securely connecting refrigerant lines or filtering impurities addresses different operational needs but does not directly correlate with the specific purpose of preventing refrigerant loss upon disconnection.