PEECO Pig Detectors
A stainless steel plunger moves vertically when the pig makes contact; when the pig passes, the plunger returns to normal position ready for next contact.
A stainless steel hinged rod is deflected by the pig and folds into a special recess until the pig passes and the rod returns to the ready position.
Both models actuate the micro-switch to indicate arrival and/or passage of the pig/shut down the station till the pig has passed/resumed pumping. Available for any size line. Available with visual indicator as to direction and passage of the pig -- with manual reset button option.