ASCO PRESSURE OPERATED VALVE 298 SERIES ASCO VALVE 298 2/2NO NPT TAPPED STAINLESS STEEL BODY PN40 DN20 OPERATOR D=100 Option 612107 ( ACCESSORY AND SPARE PART FOR ASCO VALVE 298 AND 398 ATEX CATEGORY 2 FOR VALVE 298-398 SUFFIX GD2 FOR 298 AND 398 VALVE DN15-25-32-40-50 )