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| Safety glasses
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| Safety goggles
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Safety glass or impact rated plastic, protective eye covering, which is intended to protect workers from eye injuries or athletes from injuries during play. |
| Safety lamp
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Sealed lamp, used in areas of explosive atmosphere, where the sealing prevents it from igniting when flammable or explosive gases are present. |
| Safety latch, toilet
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| Safety latches
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| Safety shutoff valve
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A device on a gas appliance that shuts off the gas supply to prevent a hazardous situation. A flame safety shutoff operates when the actuating flame becomes extinguished. |
| Safety switch
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Emergency electrical shutoff switch, which is the first device in the circuit, so that no power will go to anything, once it is activated and are often used in factories. |
| Safety valve
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Valve which limits pressure to a safe level by opening fully when it opens rather than opening to an amount proportional to the flow and pressure. Pressure that is high enough to raise the primary disc off of the valve seat, then reaches the larger second disc, forcing it fully open, relieving pressure through the larger opening. Reseating of the vale is at a predetermined value. |
| Sag
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A term used when a wall surface has developed a slide. |
| Sag pipe
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A section of a sewer line that is placed deeper in the ground than normal in order to pass under utility piping, waterways, rail lines, highways, or other obstacles. The sewer line is raised again after passing under the obstacle. |
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