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Cleaning pig with debris flushing action
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Safety closure member
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Pipeline caliper pig
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Flag-type pig-sig
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Precise alignment adapter flange
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Branch fitting providing access to pipe interior
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Branch fitting providing access to pipe interior - has two integral barrels enabling cutting and plug insertion operations to be performed
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Branching fitting for engaging into the interior of a pipeline
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Methods and apparatus for indicating selected physical parameters in a pipeline
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Branch fitting for providing access to the interior of a pipe
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Pressure activated closure lock
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Closure for a cylindrical opening having improved venting means
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Pipeline pig having improved means of sensing changes in the internal configuration of a pipeline
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Underwater tapping machine
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