Periodically, water must be removed from a boiler to control buildup of particulates, sludge, and treatment chemical concentration. The process of removing this water is referred to as boiler blowdown. Boiler blowdown can also refer to the discharged water itself.
A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications.
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
control consisting of a mechanical device for controlling the flow of a fluid
A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes
A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only
A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
RP
6 December, Starboard propeller Blade #3 TE, contact damage with multiple small fractures.
Propeller blade grinding to be performed during the overboard blanking for the boiler blowdown valve renewal.