Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Bureau of Construction Codes
Elevator Safety Board
Michigan Elevator Rules
Chapter 3 - ASME A17.1 MODIFICATIONS
Section R. 408.7048a - Rupture or overspeed valve
Universal Citation: MI Admin Code R. 408.7048a
Current through Vol. 24-16, September 15, 2024
Rule 48a. Section 5.3.2.2.2 of the ASME A17.1 code is amended to read as follows: A pressure switch must be provided to remove power from the pump motor and the control valve unless there is positive pressure at the control valve.
A rupture or overspeed valve must be provided on all roped hydraulic jacks, either cable or chain, to stop the flow of fluid and arrest the descent of the car in the event of line or pipe rupture.
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