Size: DN32-DN3000 Material: EPDM, NBR, NR, Silicon. Pressure: PN6, PN10, PN16, PN25. Connection: DIN2576, BS4504 PN16, JIS10K, ANSI B16.5 Flange, BSP,NPT Thread. You can refer to http://www.hiwaflow.com for detail specifications.