Features and Benefits Vulcanized EPDM seat Streamlined SS304 disc, corrosion resistant ISO5211 standard top flange, suit for different operations. Both gear and lever operated are available. Electrostatically applied Akzo Nobel epoxy powder internally and externally. 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 Technical Data Nominal diameter: DN50~DN150 (2"~6") Nominal pressure: PN16 Working temperature: -5C ~ +85 C Sealing test:1.1PN Shell test:1.5PN Suitable for: Water, ethylene glycol, non correction medium, etc.