VALVE RET DIAPHRAGM PP FLG FLAT 40MM BASIC NAME VALVE MODIFIER NAME CHECK DIAPHRAGM TYPE BODY SPLIT BODY MATERIAL PP-POLYPROPYLENE LINERLESS LINER END FLANGE END TYPE FLAT FACE END PATTERN EN1092 FACE TO FACE PATTERN EN558- 1 SERIES 1 CONSTRUCTION EN558-1 SERIES 1 VERTICAL OPERATING POSITION FLAT PLUG EPDM PLUG MATERIAL EPDM PLUG COATING UNCOATED SEAT MATERIAL POLYPROPYLENE SCREW CAP PRESSURE CLASS PN 10 NOMINAL DIAMETER 40 MM