If the installation is found to comply with 522 CMR 7.00, the Department shall issue a Certificate stating the pressure at which the Air Tank will be permitted to operate.
A significant reduction in material is a reduction in material to less than the minimum allowable thickness. If the thickness is reduced below the minimum allowable thickness, the Air Tank shall be repaired to bring the Air Tank to at least the minimum thickness, or a fitness for service evaluation shall be performed to determine the maximum allowable pressure in accordance with the NBIC.
The examiner's signed report and the Authorized Inspector's inspection report shall be submitted in a format approved by the Department.
Stamping shall comply with the 2019 ASME Boiler and Pressure Vessel Code Section VIII, Rules for Construction of Pressure Vessels.
No piping, drains, safety valves, pressure gauges or other Appurtenances shall be connected to threaded openings required for inspection and cleanout purposes. Flanged and/or threaded connections from which piping, instruments or similar attachments can be removed may be used in place of the required inspection openings in accordance with the 2019 ASME Boiler and Pressure Vessel Code Section VIII, Rules for Construction of Pressure Vessels.
522 CMR 7.04