Hand Hole
Sea Terms
A small hole in the shell of a steam boiler to admit of the latter being scraped and freed from salt scale and grease sediment from the condenser, etc. This hole is secured by a hand hole plate having bolts and nuts.
A small hole in the shell of a steam boiler to admit of the latter being scraped and freed from salt scale and grease sediment from the condenser, etc. This hole is secured by a hand hole plate having bolts and nuts.