1. In duct work, air which escapes from a joint, coupling, and such. 2. The undesired leakage or uncontrolled passage of air from a ventilation system.


Related Terms

LEAK TEST PRESSURE

The inlet pressure used for a standard quantitative seat leakage test.

LEAKAGE RESISTANCE

The resistance of the path over which leakage current flows; it is normally high.

AIR INFILTRATION

The leakage of air into a room through cracks in doors, windows, and other openings.

WEAR RING

A replaceable metal ring inserted in pump casing. Minimizes clearance with rotating parts in order to restricted internal leakage in a pump.

SECONDARY BARRIER

The liquid-resisting outer element of a cargo containment system designed to provide temporary containment of a leakage of liquid cargo through the primary barrier and to prevent the lowering of the temperature of the ship’s structure to an unsafe level

LEAKAGE

Escape of liquids such as water, oil, etc., out of pipes, boilers, tanks, etc., or a minor inflow of seawater into the vessel due to a damage to the hull

MECHANICAL SEAL

A sealing device used to control leakage from the stuffing box of a pump. Mechanical seals are usually made of two extremely smooth flat surfaces, one of which rotates on a shaft. The two flat surfaces are of such close tolerances as to prevent the passage of water between them.

SLINGER RING

A ring of leather or rubber placed around the pump shaft in back of the stuffing box. Used to protect the bearings from water leakage out of the stuffing box.

BAR TEST SURVEY

A leakage survey in which bar holes are driven or bored at regular intervals along the way of an underground gas pipe and the atmosphere in the holes is tested with a combustible gas detector or such.

CLEAN TRACK

A sound track having no leakage from other tracks.

Related questions

MarineProHelp 2018 - 2021