Fisher CS403 Instruction Manual page 6

CS400 Series
MONITOR
ADJUSTING
SCREW
EXTERNAL
CONTROL
LINE PLUG
INTEGRAL MONITOR
M1061
Figure 3. Type CS403 Internally Registered Primary Regulator with Internally Registered Integral Monitor Operational Schematic
OPSO ADJUSTING
SCREW
OPSO SPRING
SLAM-SHUT
VENT
RESET kNOB
TYPE VSX4 SLAM-SHUT MODULE
M1063
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
Figure 4. Type CS404ET Externally Registered Regulator with Slam-shut Operational Schematic
6
MONITOR
CONTROL
VALVE STEM
SPRING
GUIDED
STEM
MONITOR DISk
OPENING
SPRING
MONITOR LEVER
MONITOR ORIFICE
UPSO ADJUSTING
SCREW
UPSO SPRING
SLAM-SHUT
ORIFICE
SLAM-SHUT DISk
CONTROL SPRING
VALVE DISk
PUSHER POST ASSEMBLY
ORIFICE
PRIMARY REGULATOR
ADJUSTING
SCREW
ORIFICE
VALVE STEM
LEVER
DISk
ADJUSTING
SCREW
RELIEF
VALVE
SPRING
EXTERNAL CONTROL
LEVER
LINE PLUG
(DO NOT REMOVE
WHILE UNIT IS
PRESSURIZED)
CONTROL SPRING
EXTERNAL
PUSHER
CONTROL LINE
POST
CONNECTION
(SENSE LINE)
PRIMARY REGULATOR
RELIEF
SPRING