WELCOME TO OUR Building dictionary : S trap to safety valve PROJECT
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Summary: Building dictionary to explain building jargon and terminology from A - Z.
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Building dictionary for the letter S - Page 1
S-trap
An S-shaped trap that provides a water seal in a waste or soil pipe. Used most commonly at sinks and lavatories.
Sacrificial protection
The use of a metallic coating, such as zinc-rich paint, to protect steel. In the presence of an electrolyte, such as salt water, the metallic coating dissolves instead of the steel.
Saddle
(1) A fitted device used with hangers to support a pipe. (2) A series of bends in a pipe over an obstruction. (3) A short horizontal member set on top of a post as a seat for a girder. (4) Any hollow-backed structure with a shape suggesting a saddle, as a ridge connected to two higher elevations or a saddle roof. (5) See threshold. (6) See cricket.
Saddle bend
A bend made in a conduit to provide clearance where it crosses another conduit.
Saddle fitting
A type of gasketed fitting clamped around the exterior of a pipe; used when a connection to a previously installed pipe is required.
Saddle flange
A flange that is curved to conform to the surface of the boiler or tank to which it is welded, riveted, or otherwise attached, and designed to accept a threaded pipe.
Saddle joint
(1) A joint in sheet-metal roofing, in which one end of one sheet is folded downward over the turned-up edge of the adjacent sheet. (2) A stepped joint in a projecting masonry course to prevent the penetration of water.
Saddle piece
A metal cricket used in sheet-metal roofing.
Safe
(1) A built-in or portable chamber used to protect materials or documents from fire and/or theft. (2) A pan or other collector placed beneath a pipe or fixture to collect leakage or overflow.
Safe load
The maximum load on a structure that does not produce stresses greater than those allowable.
Safe working pressure
The maximum working pressure at which a vessel, boiler, flask, or cylinder is allowed to operate, as determined by the American Society of Mechanical Engineers Boiler Code; usually so identified on each individual unit.
Safety belt
A belt-like device worn around the waist and attached to a life-line or structure to stop a worker during a fall.
Safety boot
A workman's boot with a steel-protected toe and low-slip sole and heel.
Safety factor
See factor of safety
Safety glass
See wire glass, tempered glass, and laminated glass.
Safety nosing
An abrasive, nonslip stair nosing whose surface is flush with the tread against which it is placed.
Safety shutoff device
A device in a gas burner that will shut off the supply of gas if the flame is extinguished.
Safety switch
In an interior electric wiring system, a switch enclosed within a metal box that has a handle protruding from the box to allow switching to be accomplished from outside the box.
Safety tread
A tread on a stair which has a roughened surface or roughened inserts to improve traction.
Safety valve
See pressure-reducing valve
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