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A provision for access to concealed plumbing or other equipment without disturbing the wall or fixtures.
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Related Terms |
PIPE TAP
A small threaded hole or entry made into the wall of a pipe; used for sampling of pipe contents, or connection of control devices or pressure-drop-measurement devices.
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PIPE SLEEVE
A hollow, cylindrical insert placed in a form for a concrete wall at the position where a pipe is to penetrate in order to prevent flow of concrete into the opening.
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PARTY WALL
A wall providing joint service between two buildings.
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PARTITION
1. An interior wall having a height of one story or less, which divides a structure into sections. 2. A slotted sheet of paperboard that can be assembled with similar sheets to form cells for holding goods during shipment.
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PANEL COOLING
A system in which the heat-absorbing units are in the ceiling, floor, or wall panels of the space which is to be cooled.
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PANEL SYSTEM
A wall composed of factory-assembled units connected to the building frame and to each other by means of anchors.
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OVERTURNING
Failure of a retaining wall caused by the soil pressure overcoming the stability of the structure.
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OUTSIDE DIAMETER
The outer diameter of a pipe, including the wall thickness; usually measured with calipers. Abbreviated OD.
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NONBEARING WALL
A wall that bears no vertical weight other than its own.
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MASS LAW OF SOUND INSULATION
The rule stating that sound insulation for a single wall is determined almost wholly by its weight per unit area; doubling the weight of the partition increases the insulation by 5 decibels.
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