It is recommended to schedule historic boiler inspections with a minimum of a 30-day advance notice. Please contact com.boilers@com.ohio.gov to schedule the inspection.

Phase One

• Have boiler full of water and ready to hydro. 
• Safety valve removed and opening blanked/flanged off. 
• Note: Have test gauge and pump ready.

When performing hydrostatic pressure testing for verification of leak tightness or when required by the jurisdiction, the following requirements shall be met:

• Hydrostatic pressure test shall be between the calculated maximum allowable working pressure and 1.25 times the calculated maximum allowable working pressure, and held for a minimum of 10 minutes or as required to perform a complete visual examination.
• The metal and water temperature of the boiler shall be between 60 degrees F to 120 degrees F (16 degrees C to 49 degrees C) anytime a hydrostatic test is being performed.
• A calibrated gage, acceptable to the inspector, shall be used when hydrostatically pressure testing boiler.

Phase Two

• Drain and open boiler for internal inspection.
• Note: Grates should be removed prior to hydro. 
• If dry bottom, ash pan should be removed prior to hydro. 

Internal Surfaces should be cleaned prior to hydro.

• Open all handholds and manholes.
• If bolted, remove steam dome cover.
• Remove fusible plug and have new ASME plug ready to install.
• Remove caps/plugs from crosses and tees on pipe connections.
• Assure all hand valves will open and close properly.
• Be prepared to remove pipe fittings as requested.

Have copies of the following information on hand for the inspector:

• Any technical references related to the boiler.
• Any current or past inspection documentation.
• Any documents concerning past repairs.