Compatible with fluids at NAS1638 Class 9 and ISO 4406 18/15 PED category IV certified or designed in accordance to PED standards High flow - up to 110.0 l/min at < 1,450 psi / 100 bar, up to 50.0 l/min at > 11,603 psi / 800 bar and 25.0 l/min at 20,000 psi / 1,380 bar Working pressure up to 20,000 psi / 1,380 bar 316L stainless steel with super duplex options Designed to efficiently open at a predetermined set pressure to protect equipment High sealing forces along with accurate and narrow dead bands Maintain safety function in high flow applications Captive exhaust and precision Selected to suit system requirements Medium pressure connections available (selected models)