South Dakota Administrative Rules
Title 61 - Department of Public Safety
Article 61:08 - Boilers
Chapter 61:08:09 - Historic power boilers
Section 61:08:09:36 - External inspection - Safety valve requirements

If the set pressure is not above 400 psi, the safety valves must be tested by allowing the pressure in the boiler to rise to the popping pressure and observing the results. If the results indicate that a safety valve is leaking, failing to open or close promptly, showing signs of sticking, or failing to stop further pressure build-up, steps must be taken to prevent further pressure build-up and the boiler must be taken out of service until the defective valve is repaired or replaced.

General Authority: SDCL 34-29A-14.1.

Law Implemented: SDCL 34-29A-14.1.