Data Sheet

Bulletin 71.4:MR108
October 2014
D103257X012
www.fisherregulators.com
Contents
Introduction ................................................................ 3
Specications ............................................................. 2
Features ..................................................................... 3
Principle of Operation ................................................. 3
Overpressure Condition ............................................ 6
Installation .................................................................. 6
Applications................................................................. 6
Universal NACE Compliance .................................... 7
Ordering Information .................................................. 15
Ordering Guide ........................................................ 15
Features
• LargeFlow
 • Stability
 • FastResponse
 • SteelandStainlessSteelConstructionsMeet
API614Requirements
 •AvailableConstructionstoMeetNACEMR0175-
2003andMR0103RequirementsforSourGas
ServiceCapability
 • MultipleTrimMaterialsAvailable
 • ANSI/FCI70-3-2004ClassVIShutoff
 • MultipleEndConnectionOptions
 • P
1
= P
2
onHigh-PressureActuator
 • SuitableforHigh-TemperatureApplicationsup
to250°F/121°C
 • DrainValve
 • Pressure-LoadedActuator
 • Bleedvalve(forHigh-PressureActuatoronly)
TypeMR108Direct-Operated
BackpressureRegulators
TYPEMR108WITH
LOW-PRESSUREACTUATOR
Figure 1. Type MR108 Direct-Operated Backpressure Regulators
TYPEMR108WITH
HIGH-PRESSUREACTUATOR
P1202 P1203