a valve or pipe through which bleeding is done.

Also called a "bleed valve," it is a device that is used to remove pressurized fluid and air from the system.

Special air courses developed and maintained as part of the mine ventilation system and designed to continuously move air-methane mixtures emitted by the gob or at the active face away from the active workings and into mine-return air courses. Alt: Exhaust ventilation lateral.

A device for removal of pressurized fluid. Used to bleed air from system. CAVITATION: A gaseous condition within a liquid stream caused when pressure is reduced to the vapor pressure. To be avoided due to destructive effects on pumps and motors.

The valve by which air is bled from the auxiliary air tank reservoir on a car.

A small cock, valve, or plug to drain off small quantities of fluids from a container or piping system.