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A sealing device designed for pipes with an internal diameter of approximately two inches. It is utilized to temporarily block the flow within a pipeline, enabling pressure testing, repairs, or other maintenance activities. For instance, it could be inserted into a two-inch drainpipe to isolate a section for leak detection.

The use of such a device offers significant advantages in plumbing and construction. It facilitates efficient problem diagnosis within plumbing systems and prevents the need to shut down entire systems for localized work. Historically, simpler methods were used for flow blockage; modern versions offer enhanced reliability and ease of use. The availability of different material constructions allows compatibility with a wide range of fluids and environmental conditions.

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A circular device, typically constructed from rubber or similar elastomeric material, designed to create a temporary, watertight seal within a pipe or opening that has a 4-inch diameter. These devices are frequently used to isolate sections of plumbing or drainage systems for testing purposes. For example, during pressure testing of newly installed drainage lines, this component can be inserted to block the pipe, allowing the system to be filled with water to check for leaks.

The employment of such sealing mechanisms provides several advantages. It enables localized testing, minimizing the disruption to the entire system. Furthermore, its use can aid in identifying the precise location of leaks, reducing the time and resources needed for repairs. Historically, simpler methods were employed, such as physically capping pipes. However, modern devices offer a more reliable and efficient solution, contributing to safer and more accurate diagnostic procedures.

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