Mich. Admin. Code R. 408.16531 - Steam pressure procedures
Rule 6531.
(1)
Where a pressure reducing valve is used, not less than 1 relief valve, set at
not more than the rated pressure of the equipment, shall be provided adjacent
to the reducing valve on the low pressure side. The relief valve shall vent to
an area which will not create a hazard to an employee.
(2) A steam valve to machinery shall be
opened slowly to avoid uneven expansion of a pressure chamber.
(3) A cylinder-type machine shall be in
motion before steam is admitted.
(4) The rated operating steam pressure of a
machine shall not be exceeded.
Notes
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