Iowa Admin. Code r. 875-93.6 - [Effective 3/26/2025] Water gage requirements
(1) Miniature power boilers for operation
with a definite water level will be equipped with a glass water gage for
determining the water level. The lowest permissible water level for vertical
boilers will be at a point one-third of the height of the shell above the
bottom head or tube sheet. When the boiler is equipped with an internal
furnace, the water level will not be less than one-third of the length of the
tubes above the top of the furnace tube sheet. In the case of small boilers
operated in a closed system where there is insufficient space for the usual
glass water gage, water level indicators of the glass bull's eye type may be
used.
(2) Miniature power boilers
will have the lowest visible part of the water gage glass located at least 1
inch above the lowest permissible water level specified by the
manufacturer.
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.