Mich. Admin. Code R. 339.5241 - Age limit of lap seam boilers
Rule 241. The age limit of any boiler having lap-riveted longitudinal joints and operating at a pressure in excess of 50 psi is 20 years. This type of boiler, when removed from an existing setting, must not be reinstalled at a pressure in excess of 15 psi. A reasonable time for replacement, not to exceed 1 year, may be given at the discretion of the chief inspector.
Notes
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