Flow blocker – Plug, can be manufactured in different materials, including rubber, high-performance plastic, carbon steel, stainless steel and others, to meet diameters from 50.8 to 2,000mm. The tool will be customized according to the operation need, installation point, condition and internal surface of the pipe. Eventually supplied with valves and control devices that avoid overpressure in the Plugs. Its operation is applied to the low-pressure situation, that is, 0.5 bar up to the highest as 160 bar and above. Safe equipment with large surface contact to pipe, manufactured according to standards and specifications, tested and approved.