Features and Benefits Vulcanized EPDM seat. Streamlined SS304 disc, corrosion resistant. ISO5211 standard top flange, suit for different operations. Electrostatically applied Akzo Nobel epoxy powder internally and externally. Temperature overload protection Free switch between hand and electric. IP67 level protection Applicable Standards Design standard: BS5155, EN593, API609 Flange standard: BS EN1092-2 Top flange standard: ISO5211 Face to face standard: BS EN558-1 Pressure test standard: BS EN12266-1, API598