Type MR108
Control spring TYPE Y602-12 VENT POINTED DOWN OR 1/2 NPT PRESSURE-LOADED SPRING CASE VENT ACTUATOR
DIAPHRAGM
1/2 NPT CONTROL LINE CONNECTION TYPE Y602-12 VENT
ACTUATOR STEM VALVE PLUG
VALVE SPRING
CAGE inlet pressure
type MR108 with low-pressure actuator
outlet pressure atmospheric pressure
Control spring TYPE Y602-12 VENT POINTED DOWN OR 1/2 NPT PRESSURE-LOADED SPRING CASE VENT DIAPHRAGM ACTUATOR
1/2 NPT CONTROL LINE CONNECTION
TYPE Y602-12 VENT POINTED DOWN
ACTUATOR STEM VALVE PLUG
VALVE SPRING
CAGE
inlet pressure outlet pressure atmospheric pressure
type MR108 with high-pressure actuator
Figure 2. Type MR108 Direct-Operated Backpressure Regulator Operational Schematic
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