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. Spigot end connection, for quick joint. Stem cap for buried application, T-Key operated. Applicable Standards Spigot End Standard: DIN EN 12763 Design standard: BS 5163 Face to face standard: DIN3202 F5 Pressure test standard: BS EN12266-2003 Technical Data Nominal Diameter:DN50~DN300(2"~12") Nominal pressure: PN 16 Temperature range: -5 C ~ +85 C Suitable for: Water, ethylene glycol, non correction medium, etc.