Emerson EZH and EZHSO Series Pressure Reducing Regulators Bedienerhandbuch

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Europe,
Middle
East,
and
Africa
Document
Only
Types EZH and EZHSO
Instruction Manual
NTAEZH0811
November 2008 - Rev. 06
www.fisherregulators.com
Types EZH and EZHSO Pressure Reducing Regulators
Contents
Introduction ........................................................................ 2
Characteristics ................................................................... 3
Labelling ............................................................................ 5
Dimensions and Weights ................................................... 6
Description ......................................................................... 8
Principle of Operation ......................................................... 8
Monitoring Systems ............................................................ 11
Installation ......................................................................... 13
Startup and Adjustment ..................................................... 15
Shutdown ........................................................................... 16
Maintenance ...................................................................... 17
Troubleshooting ................................................................. 24
Spare Parts ........................................................................ 25
Parts List ............................................................................ 26
!
WARNING
Failure to follow these instructions or to
properly install and maintain this equipment
could result in an explosion and/or re
causing property damage and personal
injury or death.
Fisher
®
regulators must be installed,
operated, and maintained in accordance
with federal, state, and local codes, rules
and regulations, and Emerson Process
Management Regulator Technologies, Inc.
(Regulator Technologies) instructions.
If the regulator vents gas or a leak develops
in the system, service to the unit may be
required. Failure to correct trouble could
result in a hazardous condition.
Call a gas service person to service the
unit. Only a qualied person must install or
service the regulator.
Figure 1. Type EZH Pressure Reducing Regulator
R94
Figure 2. PRX Series Pressure Reducing Pilots
TYPE PRX-120/APTYPE PRX-120
Types EZH, EZHSO, EZH OS2, and EZHSO OS2
regulators are in conformity with the
Pressure Equipment Directive
PED 97/23/EC and are classied in Category IV.
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Inhaltsverzeichnis

Seite 1 - Types EZH and EZHSO

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSOInstruction ManualNTAEZH0811November 2008 - Rev. 06www.fisherregulators.comTypes EZH a

Seite 2

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO10 Figure 11. Type EZHSO DN 25/50/80 (Spring-to-Open Version) Operational SchematicF

Seite 3

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO11Figure 12. Type EZHSO DN 100 (Spring-to-Open Version) Operational SchematicInlet pr

Seite 4

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO12Figure 13. Upstream Wide-Open Monitoring System Operational Schematic for DN 25, 50

Seite 5 - LABELLING

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO13Figure 14. Working Monitoring System Operational Schematic with Two EZH (Spring-to-

Seite 6

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO14Connect the actuator to the impulse plug keeping a minimum distance of 4 x D to a st

Seite 7

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO15Wide-Open Monitor Regulator1. Follow the procedures in the All Installations sectio

Seite 8

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO16For a single regulator, set the pilot to the desired outlet (control) pressure accor

Seite 9

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO17MAINTENANCEFor both Types EZH and EZHSO DN 100, never remove or disconnect the check

Seite 10

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO183. Remove the O-ring (key 75). Inspect for damage or wear, and replace if necessar

Seite 11

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO19Intermediate Flange O-ring Maintenance for Types EZH and EZHSO (DN 25, 50, and 80)1.

Seite 12

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO2INTRODUCTIONScope of ManualThis manual provides installation, startup, maintenance, a

Seite 13

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO20Type EZHSO Actuator Maintenance1. Make a mark on the upper actuator casing (key 11)

Seite 14

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO218. Lubricate O-ring (key 34) and replace into the body.9. Place seat ring (key 2)

Seite 15

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO2213. Screw the smart screws (key 68) — already on the sleeve — to x the diaphragm/

Seite 16

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO23Upper Case Maintenance1. Disconnect pilot and remove it from the line.2. Loosen lo

Seite 17

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO24Starting positions:• Inlet valve à Open• Outlet valve à Open• Slam-shut valve

Seite 18

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO25KEY DESCRIPTION QUANTITY DN 25 DN 50 DN 80 DN 100STANDARD SPARE PARTS (Figures 16, 1

Seite 19

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO26PARTS LISTType EZH (Figures 16, 17, 18, and 19) Key Description 1 Body 2 Seat

Seite 20

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO27R102Figure 16. Type EZH Main Valve Assembly (DN 25, 50, and 80) 31HRéduction0Réduct

Seite 21

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO28Figure 17. Type EZH Main Valve Assembly (DN 100)R1038888910116465637826121348888993

Seite 22

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO29Figure 18. Type EZHSO Main Valve Assembly (DN 25, 50, and 80)1391921401421431411451

Seite 23

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO3TYPEOUTLET PRESSURE ADJUSTMENT RANGES (bar)AC (ACCURACY CLASS) PILOT CONTROL SPRING I

Seite 24

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO30Figure 19. Type EZHSO Main Valve Assembly (DN 100)TRAVEL INDICATOR DETAIL

Seite 25

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO31515557504946545648535247BMS46Figure 20. Type EZH OS2 (Slam-Shut Version)R123654321F

Seite 26

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO32Figure 22. Type EZH Silencer Detail161234

Seite 27

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO33Figure 23. Types PRX/120 and PRX/125 PilotsTYPE PRX/120 OR PRX/125TYPE PRX/120 OR P

Seite 28

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO34Type PRX Pilot (Figure 23) Key Description 1 Adjusting screw 2 Locknut 3 Cap

Seite 29

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO35Figure 25. Type RPE Pilot HeaterFigure 26. Check Valve160159

Seite 30

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSOThe Emerson logo is a trademark and service mark of Emerson Electric Co. All other ma

Seite 31

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO4Table 4. Failure Mode AnalysisPART NAMEFAILURE (WORST CASE)CAUSE OF FAILUREEFFECT

Seite 32

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO50062(Gaz Naturel)28320 Gallardon-FranceREGULATEUR/REGULATORIVGROUPE1N°sérieserialDate

Seite 33

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO6R113aDIMENSIONS AND WEIGHTSR112aTable 6b. Dimensions — Types EZH OS2 and EZHSO OS2R1

Seite 34

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO7ABECIHJECKBAIHIndicator coverremoval clearanceEJIHBCKAIndicator cover removal clearan

Seite 35

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO8DESCRIPTIONThe Types EZH and EZHSO regulators consist of:• Version without Integral

Seite 36

Europe, Middle East, and Africa Document OnlyTypes EZH and EZHSO9Figure 10. Type EZH-OS2 DN 100 (Spring-to-Close Version) Operational SchematicTYPE P

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