PRESSURE OPERATED ASCO VALVE SERIES 290 VALVE 2/2 NC ALL AISI 316 L STAINLESS STEEL ENTRY UNDER DISC G 1 D=25 OPERATOR D=90 PILOT PRESSURE 4 BAR Option666006 ( SIGNALLING BOX MOUNTED ON ALL AISI 316L STAINLESS STEEL VALVE 2 MECHANICAL SWITCHES (SM2) ) + option666049 ( LENGTHENING STEM FOR SIGNALLING BOX MOUNTED ON VALVE MECHANICAL SWITCH 290 DN 25-65 D=63 AND 90 )