🔍 Key Concepts

• 46 CFR requirements for boiler safety valves • Where safety valves must be located in a marine boiler steam system • Difference between saturated steam and superheated/auxiliary outlets

💭 Think About

• Which part of the boiler/steam system must ALWAYS be directly protected against overpressure, regardless of what happens in the rest of the system? • Is the safety valve meant to protect each branch line, or the boiler itself at its main steam outlet? • Think about which option represents a specific branch of service versus the primary boiler steam connection.

✅ Before You Answer

• Verify in 46 CFR that safety valves protect the boiler rather than every individual branch outlet. • Identify which choice corresponds to the main steam outlet from the boiler rather than a conditioned (superheated, desuperheated, or preheated) branch. • Confirm whether the regulation speaks about safety valves on each boiler or on specific service lines like auxiliary or desuperheated steam.