Intrusive detectors have a probe such as a trigger or plunger inserted thru the pipe wall into the flow of the pipeline. It is activated by the pig tripping the device. The signal can be a visual flag, electrical notification at control room, light, etc.
TDW Pig Sig V
PIG-SIGŪ V Scraper Passage Indicator is a device...
TDW Pig Detector IV
PIG-SIGŪ IV Scraper Passage Indicator is a device...
Enduro Pig Popper
The Enduro Pig Popper is an intrusive pig signal that is...
Maloney Series III Detector
Maloney Series III Detector is a Pig Signaler for...