ASCO series 544 air operated spool valves air or neutral gas, filtered, lubricated or not. The body is made up of zinc diecast, while the sealing is nitrile (NBR). The spool valve has a long lifespan of 5 million cycles.
ASCO JOUCOMATIC Product Reference: 54400003
THE 54400003 IS OBSOLETE & REPLACED BY AVENTICS 5814230000