Features and Benefits Designed in accordance with WRAS requirements High quality brass material. Threads to BS EN 10226 (ISO7) or ISO228 Long neck design, for insulations purpose. Applicable Standards Connection standard: ISO228 Technical Data Nominal Diameter:DN15~DN50 (1 2"~2") Nominal Pressure: PN16 Temperature Range: -5C~85C Sealing test: 1.1PN Shell test: 1.5PN Suitable for: Water, ethylene glycol, non correction medium, etc.