The aluminum and stainless steel models are designed for "any application that requires high flow capacity or remote pressure control." Typically this is throttling speed on large-volume control valve actuators including those in oil and gas applications.
Both boosters handle up to 250 psig supply pressure and deliver up to 150 psig output pressure. They allow up to 400 scfm flow capacity for rapid actuator stroking over -40° to +200°F. Exhaust capacity is 100 scfm with downstream 5 psig above setpoint.