Emerson EZR Series Pressure Reducing Regulator Datasheet Page 1

Bulletin 71.2:EZRD102626X012February 2014www.fisherregulators.comEZR Series Pressure Reducing Regulator Robust Thoroughly Tested Internally Actuated E

Bulletin 71.2:EZR10LOCATE INK CODE BETWEEN RADIIMATERIAL INK CODEFigure 4. Diaphragm Markings11111111MANUFACTURER CODETHICKNESS INK CODE (USE ONE LOC

Bulletin 71.2:EZR11Figure 5. Type EZR Upstream or Downstream Wide-Open MonitorINLET PRESSUREOUTLET PRESSUREATMOSHERIC PRESSURELOADING PRESSUREINTERMED

Bulletin 71.2:EZR12Capacity InformationNoteFlow capacities are laboratory veried; therefore, regulators may be sized for 100% ow published capacitie

Bulletin 71.2:EZR13BLOCK VALVEBLOCK VALVEOUTLETHAND VALVE ALTERNATE CONTROL LINECONTROL LINE161 SERIES PILOTRESTRICTORSUPPLY PRESSURE LINEINLET7A—161

Bulletin 71.2:EZR14OUTLETINLETBLOCK VALVEBLOCK VALVEOUTLETHAND VALVE HAND VALVE ALTERNATE CONTROL LINECONTROL LINE161 SERIES PILOT RESTRICTORSUPPLY PR

Bulletin 71.2:EZR15Slam-Shut Device Principle of OperationThe Type EZROSX with slam-shut device can provide either overpressure (OPSO) or overpressure

Bulletin 71.2:EZR162RUNSTART468VALVE PLUGVALVE PLUG DISKMANOMETRIC DEVICEMANOMETRIC DEVICE STEMMECHANISM BOXEQUALIZER BYPASSFigure 9. Type EZROSX wit

Bulletin 71.2:EZR17Table 8. Main Valve Maximum Pressure Ratings, Diaphragm Selection Information and Main Spring Selection(1)BODY SIZESDIAPHRAGM MATE

Bulletin 71.2:EZR18Table 9. Main Valve Regulating Flow Coefficients(1) for EZR Series, With or Without Slam-Shut DeviceMAIN VALVE BODY SIZE, NPS / DNC

Bulletin 71.2:EZR19SET ON START SET ON RUNC1CgCvCgCv6 0.17 1 0.03 35Table 11. Pilot Flow CoefficientsTable 12. Restrictor Flow Coefficients161AY SERIE

Bulletin 71.2:EZR2IntroductionThe Type EZR pilot-operated, pressure reducing regulator is designed for natural gas transmission/distribution systems a

Bulletin 71.2:EZR20INLET PRESSUREOUTLET PRESSURECAPACITIES IN THOUSANDS OF SCFH / Nm³/h OF 0.6 SPECIFIC GRAVITY NATURAL GAS USING 1:1 LINE SIZE TO BO

Bulletin 71.2:EZR21Table 14. Capacities for EZR Series with Type 161EB, 161EBM or PRX Pilot (continued)INLET PRESSUREOUTLET PRESSURECAPACITIES IN THOU

Bulletin 71.2:EZR22Table 15. Capacities for EZR Series with PRX SeriesINLET PRESSUREOUTLET PRESSURECAPACITIES IN THOUSANDS OF SCFH / Nm³/h OF 0.6 SPEC

Bulletin 71.2:EZR23Table 15. Capacities for EZR Series with PRX Series (continued)INLET PRESSUREOUTLET PRESSURECAPACITIES IN THOUSANDS OF SCFH / Nm³/h

Bulletin 71.2:EZR24Table 16. Manometric Device Specifications(1)SPRING RANGESPRING COLORSPRING PART NUMBERMAXIMUM SENSING INLET PRESSUREMANOMETRIC SEN

Bulletin 71.2:EZR25FRANCELFRANCELFIRST-STAGE RESET PIN (WHITE)MECHANISM BOXSECOND-STAGE RESET SHAFTFigure 11. Slam-Shut Device in Open PositionSETPOIN

Bulletin 71.2:EZR26BLOCK VALVEPILOT SUPPLY FILTERRESTRICTORPILOTCONTROL LINE BLOCK VALVEHAND VALVE HAND VALVE ALTERNATE CONTROL LINECONTROL LINESLAM-S

Bulletin 71.2:EZR27UPSTREAM BLOCK VALVEPILOT SUPPLY FILTERRESTRICTORPILOTCONTROL LINE BLOCK VALVEHAND VALVE HAND VALVE CONTROL LINEEXTERNAL TRIP PRESS

Bulletin 71.2:EZR28Figure 14. Typical EZR Dimensions Table 19. Typical EZR DimensionsINCH /mmAB161AY SERIES3/4 NPT DOWNSTREAM CONTROL CONNECTIONTYPE 1

Bulletin 71.2:EZR293.00 / 76CAP REMOVALCLEARANCEABOPTIONALBLEED VALVEGETYPE 112TYPE 252TYPE 161EB1/4 NPT DOWNSTREAMCONTROL CONNECTIONBODY INLET AND O

Bulletin 71.2:EZR3Features and BenetsTight Shutoff—The EZR Series uses a diaphragm and metal plug, eliminating the disadvantages of boot-style 

Bulletin 71.2:EZR30INCH /mmABGETYPE 112161EB SERIES1/4 NPT DOWNSTREAMCONTROL CONNECTION3.00 / 76BODY INLET AND OUTLET TAPPED ONLY WHEN SPECIFIEDBODY D

Bulletin 71.2:EZR313.00 / 763.27 / 834.82 / 1222.50 / 644.78 / 1213.53 / 903.68 / 93Ø 2.82 / 72Ø 2.82 / 72Ø 6.75 / 171Ø 2.81 / 71Ø 2.92 / 74Ø 2.93 / 7

Bulletin 71.2:EZR324.82 / 1223.72 / 943.27 / 833.27 / 830.98 / 254.19 / 1062.50 / 644.78 / 1213.53 / 903.68 / 93Ø 2.82 / 72Ø 2.82 / 72Ø 6.75 / 171Ø 2.

Bulletin 71.2:EZR33Figure 16. Pilot Port Function and Connection SizesRUNSTART2468TYPE 112PILOT SUPPLY CONNECTION: 1/4 NPT PIPE CONNECTS TO UPSTR

Bulletin 71.2:EZR34Type EZR Ordering GuideType (Select One) EZR EZROSX (with slam shut)Body Size (Select) NPS 1 / DN 25 (Available in steel on

Bulletin 71.2:EZR35 Type PRX120/125 14.5 to 26 psig / 1.00 to 1.8 bar, Yellow*** 23 to 44 psig / 1.6 to 3.0 bar, Green*** 41 to 80 psi

Bulletin 71.2:EZR©Emerson Process Management Regulator Technologies, Inc., 1999, 2014; All Rights Reserved

Bulletin 71.2:EZR4In-Service Travel Indicator—The optional travel indicator responds to the precise movement of the diaphragm and plug assembly and sh

Bulletin 71.2:EZR5SpecicationsAvailable CongurationsType EZR: Pilot-operated pressure reducing regulator for low to high outlet pressureType EZROSX:

Bulletin 71.2:EZR6Specications (continued)PRX Series PilotsBody: Steel, ASTM 105Trim: Stainless steelElastomers: Nitrile (NBR) or Fluorocarbon (FKM)D

Bulletin 71.2:EZR7TYPEMAXIMUM INLET PRESSUREMAXIMUM EMERGENCY OUTLET PRESSURE OR MAXIMUM EMERGENCY SENSE PRESSURE(1)MAXIMUM OUTLET PRESSUREMAXIMUM BLE

Bulletin 71.2:EZR8Figure 3. Type EZR Operational SchematicW7438MAIN SPRINGDIAPHRAGM AND PLUG ASSEMBLYTYPE 252 PILOT SUPPLY FILTERTYPE 112 RESTRICTOR16

Bulletin 71.2:EZR9Figure 3. Type EZR Operational Schematic (continued)As the outlet pressure rises toward the outlet pressure setting, it compresses t