A low pressure steam boiler does not require a pressure relief valve. True or False?

A low pressure steam boiler does not require a pressure relief valve. True or False?

• A. True
• B. False
• C. Only for boilers above 15 psi
• D. Not required for any boiler

Answer: (B)

A pressure relief valve is a safety device that vents steam if the boiler pressure exceeds its design limit, preventing an overpressure situation. For steam boilers, including low‑pressure ones (typically 15 psi or less), codes require this valve to protect against control or feedwater/heat input failures that could push pressure higher than the boiler can safely handle. Because of this requirement, the statement is false. Even low‑pressure boilers need a properly sized pressure relief valve; suggesting it’s unnecessary for any boiler would be incorrect.

A pressure relief valve is a safety device that vents steam if the boiler pressure exceeds its design limit, preventing an overpressure situation. For steam boilers, including low‑pressure ones (typically 15 psi or less), codes require this valve to protect against control or feedwater/heat input failures that could push pressure higher than the boiler can safely handle. Because of this requirement, the statement is false. Even low‑pressure boilers need a properly sized pressure relief valve; suggesting it’s unnecessary for any boiler would be incorrect.