Referred to as radiator traps because the quick-disconnect pipe design is found on most radiators on 2-pipe steam heating systems. TA models have right angle discharge and the TS Type is straight-through. Their excellent air-handling capabilities and economical cost make them a great choice for air vents on heat exchangers or for steam trap applications on OEM equipment. Contains an extremely rugged precision-welded Stainless Steel thermal element which is highly resistant to waterhammer.