NRS Gate Valve PN16 Flanged Resilient Seated BS5163 Type Features and Benefits 3 O-ring sealing, zero leakage, safe and reliable. Fully vulcanized wedge, corrosion resistant. Wedge with plastic guide rail on two sides, reduces friction, reduces torque. Full bore, resilient seated, no water head lost. Electrostatically applied Akzo Nobel epoxy powder internally and externally. Applicable Standards Flanges standard: BS EN 1092-2. Design standard: BS 5163 Face to face standard: BS EN 558-1 base series 3 Pressure test standard: BS EN12266-2003 Technical Data Nominal Diameter:DN50~DN600(2"~24") Nominal pressure: PN 16 Temperature range: -5 C ~ +85 C Suitable for: Water, ethylene glycol, non correction medium, etc.