Data Sheet

Bulletin 71.2:627F
3
Figure 2. Type 627F Pilot-Operated Pressure Reducing Regulator Operational Schematic
A6558
PILOT SUPPLY TUBING
(FACTORY INSTALLATION OPTIONAL)
PILOT ADJUSTING
SCREW
FILTER
(FACTORY
INSTALLATION
OPTIONAL)
RESTRICTION
(BLEED)
TENSION
SPRING
SPRING SEAT BOLT,
THIS IS NOT AN
ADJUSTING SCREW
FIELD INSTALLED
DOWNSTREAM
CONTROL LINE
PILOT DIAPHRAGM
TYPE 6351F PILOT
TYPE 627F REGULATOR
MAIN REGULATOR
DIAPHRAGM
LEVER
VALVE
DISK
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
LOADING PRESSURE