If an ASME tank cannot be fitted with an internal valve that provides emergency shutdown protection automatically in the event of a fire and remote shutdown capability, a(n) ______ may be used in combination with an excess-flow valve installed in the tank opening and a manual valve installed as close as possible to the excess-flow valve

If an ASME tank cannot be fitted with an internal valve that provides emergency shutdown protection automatically in the event of a fire and remote shutdown capability, a(n) ______ may be used in combination with an excess-flow valve installed in the tank opening and a manual valve installed as close as possible to the excess-flow valve

• A. Inline ESV
• B. Inline Valve
• C. Remote ESV
• D. External ESV

Answer: (B)

The key idea is to provide a way to shut off gas flow without relying on an internal emergency shutdown valve. An inline valve is placed in the piping outside the tank and can be quickly closed to stop the flow. When you use an inline valve together with an excess-flow valve installed in the tank opening and a manual valve as close as possible to that excess-flow valve, you get multiple points of control: the excess-flow valve automatically restricts flow if a leak or rupture occurs, the manual valve near the EFV gives a nearby local shutoff, and the inline valve adds an additional, easily accessible isolation point for emergency or service shutoff. This setup achieves the needed shutdown capability without installing an internal valve that provides automatic or remote shutdown. Options that imply an emergency shutdown valve (inline ESV, remote ESV, or external ESV) would introduce automatic or remotely operated shutdown, which isn’t part of this scenario.

The key idea is to provide a way to shut off gas flow without relying on an internal emergency shutdown valve. An inline valve is placed in the piping outside the tank and can be quickly closed to stop the flow. When you use an inline valve together with an excess-flow valve installed in the tank opening and a manual valve as close as possible to that excess-flow valve, you get multiple points of control: the excess-flow valve automatically restricts flow if a leak or rupture occurs, the manual valve near the EFV gives a nearby local shutoff, and the inline valve adds an additional, easily accessible isolation point for emergency or service shutoff. This setup achieves the needed shutdown capability without installing an internal valve that provides automatic or remote shutdown.

Options that imply an emergency shutdown valve (inline ESV, remote ESV, or external ESV) would introduce automatic or remotely operated shutdown, which isn’t part of this scenario.