https://valves.curtisswright.com/en-us/est/Products/Hydrostatic-Test-Isolation-Plugs/GripTight-Isolation-Plug
GripTight® Pipe Isolation Plug | Curtiss-Wright Valves Division
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https://usaindustries.com/piping-isolation-testing-products/expansion-pipe-plug/
Heavy Duty Expansion Isolation Pipe Plug | Precision Engineered Products for Pipes & Tubes
Mar 30, 2026 - Eliminate the need to weld on end caps or plates for isolation pipe, saving valuable time with maintenance-free Heavy Duty Industrial Isolation Plugs.
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