What is stated regarding mufflers on safety valves in ASME Code?

The statement regarding mufflers on safety valves in ASME Code is that they cannot be used on high-temperature water boiler safety relief valves. This is specifically because the use of mufflers can interfere with the functioning of safety relief valves, particularly in high-temperature applications where they are crucial for the protection of the system.

In high-temperature water boiler systems, ensuring that safety relief valves can operate freely without any obstructions is essential to prevent dangerous buildup of pressure. Mufflers can potentially reduce the pressure release capability of the valve, leading to safety risks. Therefore, the ASME Code clearly advises against the use of mufflers in these critical scenarios to maintain optimal performance and safety.

Understanding this guideline helps ensure that safety measures in boiler systems are adhered to, which is crucial in maintaining operational integrity and preventing accidents.