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A. It is expansion plug number 1, an expanding connector that covers diameters from 21 to 38mm for sealing openings during tests.
A. It offers expansion from approximately 21 millimetres up to 38 millimetres.
A. It can be used wherever its expansion range suits the opening, provided pressure ratings are respected.
A. Inspect the expansion mechanism and rubber surfaces for cracks or wear, and confirm correct size for the application.
A. Numbers correspond to size ranges, allowing quick selection of the right plug for each port or filler neck.
A. Store it with other expansion plugs in a labelled container or cooling system toolkit.
A. Avoid exceeding recommended pressures, ensure secure plug seating and release pressure carefully afterward."
A. It is listed under fuel, coolant and lubrication repairs, within vehicle cooling equipment.
A. It is inserted into an opening and then expanded to create a seal for pressure testing or flushing operations.
A. It measures about 170 x 220 x 60mm and weighs around 0.3 kilograms.
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