What type of pressure is the liquid line of an NH3 system subject to?

The liquid line of an NH3 (ammonia) refrigeration system is under condenser pressure. In a refrigeration cycle, the condenser is where the gas refrigerant releases heat and condenses into a liquid. During this process, the refrigerant is subjected to the high pressures generated in the condenser section of the system.

The pressure in the liquid line is directly related to the pressure in the condenser because it reflects the state of the refrigerant after it has been cooled and converted into a liquid. Operating at this pressure ensures that the refrigerant remains in a liquid state as it travels through the liquid line to the expansion device or evaporator.

This understanding of the function of the liquid line and the pressures at play in the NH3 refrigeration system is crucial for ensuring efficient operation and safe management of refrigerants.