BASIC NAME GASKET NAME MODIFIER EXPANSION SIMPLE TYPE INTERNAL LINING NITRILE RUBBER-NBR BELLOWS MATERIAL NITRILE RUBBER-NBR TENSIONER WITHOUT TENSIONER END SWIVEL FLANGE END STANDARD DIN 2501 PRESSURE CLASS PN 16 END MATERIAL CARBON STEEL ST37.2 GALVANIZED NOMINAL DIAMETER 50 MM LENGTH 125 MM COMMERCIAL REFERENCE STENFLEX-AS-1/DN50-PN16