What Gauge set hoses used for field service work should have self-sealing connectors or hand valves in order to?

Gauge set hoses used for field service work should have self-sealing connectors or hand valves to prevent refrigerant leakage during disconnection, which is essential for environmental protection and safety. These features allow technicians to safely isolate and manage refrigerants without releasing them into the atmosphere. Additionally, self-sealing connectors enhance efficiency by minimizing the risk of contamination and maintaining system integrity during service operations.