PRESSURE OPERATED ASCO VALVE SERIES 290 VALVE 2/2 NC STAINLESS STEEL ENTRY UNDER DISC G 1/2 D=15 OPERATOR D=50 PILOT PRESSURE 4 BAR + OPTION 666015 OXYGEN APPLICATION SAQ 11012 FOR VALVE SER. 390-290 WITH TEFLON OPERATED 50-63-90-125 N + Option 666367 ( SU ENSEMBLE DE SIGNALISATION SUPPORT DE DETECTEURS MAGNETIQUES POUR RAINURE EN T SUR VANNE 290 ACT.D=50 NF SUPPORT LIVRE MONTE SUR VANNE. )