Features and Benefits Robust and compact design, high quality brass construction, valves have long life cycle. Thread in accordance with BS EN 10226(ISO7) or ISO228 Applicable Standards Connection standard: ISO228 Technical Data Nominal Diameter:DN15~DN50 (1 2"~2") Nominal pressure: PN 16 Temperature range: -5C ~ +85C Sealing test: 1.1PN Shell test: 1.5PN Suitable for: Water, ethylene glycol, non correction medium, etc.