P.U.(A) 5/70
FACTORIES
AND MACHINERY (STEAM BOILER AND
UNFIRED PRESSURE VESSEL)
REGULATIONS, 1970
PART II - STEAM BOILERS
Regulation
23. Manhole door.
No manhole, handhole or
sighthole door of any steam boiler shall be made of cast iron. The
spigot part of any such
door shall be maintained with a clearance not greater than one-sixteenth
of an
inch all round. Round sectioned packing shall not be used for the joint of any
such door.
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