
CSB400 Series
9
Figure 6. Type CSB404ET Externally Registered Regulator and Slam-shut Operational Schematic
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
M1146
Figure 5. Type CSB403IT Internally Registered Primary Regulator with Externally Registered Integral True-Monitor™ Operational Schematic
M1145
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
WIDE-OPEN INTEGRAL TRUE-MONITOR REGULATOR PRIMARY REGULATOR
TYPE VSX4 SLAM-SHUT MODULE PRIMARY REGULATOR
EXTERNAL CONTROL
LINE (SENSE LINE)
PRESSURE RETAINING
PLUG (DO NOT
REMOVE WHILE UNIT
IS PRESSURIZED)
MONITOR ADJUSTING SCREW
REGULATOR ORIFICE
REGULATOR
ADJUSTING SCREW
REGULATOR
CONTROL SPRING
MONITOR CONTROL SPRING
MONITOR DISK
MONITOR
LEVER
MONITOR
VALVE STEM
MONITOR
OPENING SPRING
BALANCED PORT
ASSEMBLY
REGULATOR
VALVE STEM
REGULATOR
LEVER
REGULATOR
PUSHER POST
TOKEN RELIEF
SPRING
MONITOR ORIFICE
OPSO ADJUSTING SCREW
UPSO ADJUSTING SCREW
UPSO SPRING
SENSE BLOCKING
SCREW
SLAM-SHUT
ORIFICE
OPSO SET SPRING
RESET KNOB
SLAM-SHUT DISK
VENT
REGULATOR
CONTROL SPRING
REGULATOR
ADJUSTING SCREW
REGULATOR ORIFICE
VALVE STEM
LEVER
EXTERNAL CONTROL
LINE (SENSE LINE)
TOKEN RELIEF
SPRING
PROXIMITY
SWITCH PLUG
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