A test plug is a rubber or inflatable device used to temporarily seal off sections of piping or drains for pressure testing, leak detection, or repair. It is commonly used in drain, waste, and vent systems to isolate and test specific sections for leaks or blockages. Test plugs come in various sizes and designs, including mechanical plugs, pneumatic plugs, and screw-in plugs, to fit different pipe diameters and materials. Proper use of test plugs ensures accurate testing, preventing leaks and ensuring system integrity before final installation.
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