What is the purpose of installing check valves in ammonia systems specifically concerning pressure?

The installation of check valves in ammonia systems serves a crucial function by preventing backflow and maintaining the integrity of the refrigeration system. When a check valve is installed, it allows fluid to flow in only one direction, which helps to avoid potential issues that could arise from backflow. Backflow can lead to contamination of the refrigerant, system inefficiencies, and potential damage to system components due to changes in pressure.

By ensuring that the flow of ammonia is unidirectional, check valves play an essential role in preserving the system's design pressure and ensuring that it operates safely and efficiently. This is particularly important in ammonia systems, as ammonia itself is a hazardous substance and maintaining the integrity of the system is critical for safety and operational performance.

Other choices may touch on different aspects of refrigeration systems but do not capture the primary function of check valves as effectively as preventing backflow and safeguarding system integrity.