Large flow capacity Type 380/390SS stainless steel filter regulator series is designed for demanding applications that require stable and accurate pressure regulation with high flow capacity. Corrosion resistant 316L stainless steel housing trim and filter assemblies make this series adaptable to offshore and other harsh environments. Large porting ensures stable and repeatable output pressures, even during wide supply pressure variations from large volume valve actuators. Oversized valving helps the units achieve high flow rates with minimal pressure drop.