Flexible Rubber Joint Double Sphere Flange End Connection : 10K, PN 16, Ansi 150 Flange : Mils Steel Inner & Outer Rubber : Synthetic Rubber Normal Operating Pressure: DN 32-100 Max 1.47 Mpa ( 15kgf/ cm2) in normal temperature DN 125-300 Max 1.18 Mpa ( 12kgf/ cm2) in normal temperature Operating Temperature : -20 to 70 Deg c