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Systems and methods for accessing and monitoring a fluid within a pressurized pipe |
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Automated pressure equalization above and below completion plug of gate valve cartridge or a completion plug of a line stop fitting |
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Expanding gate valve assembly with pressure equalization system |
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Pipe core sampling and tapping apparatus |
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Linestops, nozzles and completion plugs for installation in pressurized pipes |
Carl Mastny, Stephen Roehrig, Panagiotis Tsafaras |
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Gate valves for installation in pressurized pipes |
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