Plumbing Dictionary


Plumbing termonalogy.

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SAFETY SHUTOFF DEVICE

A device that will shut off the gas supply to the controlled burners in the event the source of ignition fails to ignite the gas at the burners. This device may interrupt the flow of gas to the main burners only, or to the pilot and the burners under its supervision.

SECONDARY AIR

The air externally supplied to the flame at the point of combustion.

SELF-CLOSING FAUCET

A faucet containing a valve that automatically closes upon deactivation of the opening means.

SEPARATOR

See "Interceptor."

SERVICE PIPE

The pipe which brings the gas from the gas main to the point of delivery.

SET OUT

See "Final"

SEWAGE

Any liquid waste containing animal or vegetable matter in suspension or solution, including liquids containing chemicals in solution.

SEWAGE EJECTORS

A device for lifting sewage by entraining the sewage in a high-velocity jet of steam, air or water.

SEWER Building

See "Building sewer."

SEWER Public

A common sewer directly controlled by public authority. Sanitary sewer. A sewer that carries sewage and excludes storm, surface and ground water.

SEWER Storm

A sewer that conveys rainwater, surface water, condensate, cooling water or similar liquid wastes.

SLOPE

The fall (pitch) of a line of pipe in reference to a horizontal plane. In drainage, the slope is expressed as the fall in units vertical per units horizontal (percent) for a length of pipe.

SOIL PIPE

A pipe that conveys sewage containing fecal matter to the building drain or building sewer.

SOLVENT WELD

A methoed used to join Plastic pipe by using Cement and Primer.  The cement (glue) used for connecting PVC parts is sticky like standard glue, but  it actually melts the plastic, creating a true weld.

SPECIFIC GRAVITY

As applied to gas, specific gravity is the ratio of the weight of a given volume to that of the same volume of air, both measured under the same condition.

SPILL-PROOF VACUUM BREAKER

An assembly consisting of one check valve force-loaded closed and an air-inlet vent valve force-loaded open to atmosphere, positioned downstream of the check valve, and located between and including two tightly closing shutoff valves and a test **.

STACK

A general term for any vertical line of soil, waste, vent or inside conductor piping that extends through at least one story with or without offsets.

STACK VENT

The extension of a soil or waste stack above the highest horizontal drain connected to the stack.

STACK VENTING

A method of venting a fixture or fixtures through the soil or waste stack.

STERILIZER Boiling type

A boiling-type sterilizer is a fixture of a nonpressure type utilized for boiling instruments, utensils or other equipment for disinfection. These devices are portable or are connected to the plumbing system.

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