BYPASS SERVO VALVE FOR F354/F355/F387/F390 INLINE CONTROL VALVE

THE BYPASS SERVO ASSEMBLY (SERVO) PROVIDES THE MEANS OF CONTROLLING A FUEL BYPASS REGULATOR. THERE ARE TWO VERSIONS, AIR-SET AND SPRING-SET. THE BYPASS REGULATOR WILL MAINTAIN A CONSTANT PRESSURE AT A DOWNSTREAM SENSING POINT, SUCH AS A VENTURI, AS A FUNCTION OF THE SUPPLIED REFERENCE AIR OR ADJUSTABLE SPRING PRESSURE. THE BYPASS REGULATOR IS NORMALLY MOUNTED IN THE PUMP BYPASS LINE AND REGULATES THE FLOW FROM THE OUTLET TO THE INLET OF THE PUMP.