Nominal diameter: 40¡ª2000mm Nominal pressure: 1.0,1.6Mpa Operating temperature range : -15¡æ¡ª+150¡æ Better control performance, longer operating life. different materials in every parts, suitable for various kinds of mediums. Zero gas leakage. Suitable medium: fresh water, sewage, seawater, air, steam, food, medicine, various kind of oils£¬acids, alkali and salt.