Emerson FISHER EZR Instruction Manual
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Emerson FISHER EZR Instruction Manual

Emerson FISHER EZR Instruction Manual

Pressure reducing regulator
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Instruction Manual
Form 5468
March 2014
Type EZR Pressure Reducing Regulator
W7430
161AY SERIES PILOT
WARNING
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or fi 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 qualifi ed person must install
or service the regulator.
W7399
TYPE EZR REGULATOR
Figure 1. Type EZR Pressure Reducing Regulator
Introduction
Scope of the Manual
This instruction manual provides installation,
startup, adjustment, maintenance and parts ordering
information for Type EZR pressure reducing
regulator, Type 112 restrictor, 161AY, 161EB and
PRX Series pilot. Any accessories used with this
regulator are covered in their respective
instruction manuals.
Product Description
The Type EZR pilot-operated, pressure reducing
regulators are used for natural gas, air or other
non-corrosive gas applications and include a
Type 112 restrictor and a 161EB, 161AY or PRX Series
pilot. For applications that have high-pressure drops,
using a Type 161AYM or 161EBM monitor pilot will
increase the accuracy of the regulator.
www.fisherregulators.com
Type EZR
W8346
TYPE PRX PILOT

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  • Page 1 Emerson Process Product Description Management Regulator Technologies, Inc. (Regulator Technologies) instructions. The Type EZR pilot-operated, pressure reducing...

  • Page 2: Specifications

    Type EZR Specifications Specifications for the Type EZR regulator are shown below. The control spring range for the pilot is marked on the  spring case of 161EB Series pilots and on the nameplate of 161AY and PRX Series pilots. Other information for the main valve appears on the nameplate. Main Valve Body Sizes, End Connection Styles Minimum and Maximum Differential Pressures and Structural Design Ratings See Tables 4 and 10 (1)(2)
  • Page 3 Type EZR Table 1. Main Valve Body Sizes, End Connection Styles and Body Ratings STRUCTURAL DESIGN MAIN VALVE BODY SIZE, NPS / DN MAIN VALVE BODY MATERIAL END CONNECTION STYLES RATING NPT (NPS 2 x 1 and 2 / DN 50 x 25 and 50 only) 400 psig / 27.6 bar 2 x 1, 2, 3, 4 and 6 / Cast iron...

  • Page 4: Principle Of Operation

    Type EZR Table 4. Main Valve Minimum Differential Pressures MINIMUM DIFFERENTIAL, PERCENT OF CAGE CAPACITY MAIN VALVE MAIN SPRING PART FOR 90% CAPACITY FOR 100% CAPACITY DIAPHRAGM BODY SIZE, NUMBER AND MATERIAL 100% Trim 60% Trim 30% Trim 100% Trim 60% Trim 30% Trim NPS / DN...
  • Page 5 Type EZR 161EB SERIES PILOT 161AY SERIES PILOT TYPE 112 RESTRICTOR TYPE 252 PILOT SUPPLY FILTER B2625_2 FLOW DIRECTION MAIN SPRING DIAPHRAGM AND PLUG ASSEMBLY W7438 TYPE EZR WITH TYPES 161EB PILOT, 112 RESTRICTOR AND 252 FILTER TYPE PRX PILOT TYPE 252 SUPPLY FILTER RESTRICTOR DAMPER...
  • Page 6 Type EZR BLOCK VALVE BLOCK VALVE INLET OUTLET HAND VALVE SUPPLY PRESSURE LINE CONTROL LINE ALTERNATE CONTROL LINE RESTRICTOR B2605_A 161 SERIES PILOT 161 SERIES SINGLE PILOT INSTALLATION WITH PILOT EXHAUST INTO CONTROL LINE BLOCK VALVE BLOCK VALVE INLET OUTLET PILOT EXHAUST HAND VALVE...

  • Page 7: All Installations

    Type EZR All Installations 300 x 150) are different than EW valve bodies and are not interchangeable. The robust design of the Type EZR allows this regulator Install trims only in correct restricted to be installed indoors or outdoors. When installed trim bodies.
  • Page 8 Type EZR 6. As shown in Figure 3, run a supply pressure line Use the following procedure when installing a working  from the upstream pipeline to the restrictor inlet monitor system. (use 3/8 NPT outer diameter tubing or larger). 1. Follow the procedures in the All Installations Install a Type 252 pilot supply filter upstream of the  ...
  • Page 9 Type EZR BLOCK VALVE DOWNSTREAM BLOCK VALVE UPSTREAM REGULATOR REGULATOR INLET OUTLET HAND VALVE SUPPLY SUPPLY PRESSURE RESTRICTOR PRESSURE LINE LINE CONTROL 161 SERIES PILOT RESTRICTOR 161 SERIES PILOT LINE PILOT EXHAUST HAND VALVE B2605_C ALTERNATE CONTROL LINE CONTROL LINE 161 SERIES WIDE-OPEN MONITORING SYSTEM INSTALLATION (UPSTREAM OR DOWNSTREAM) WORKING BLOCK VALVE...

  • Page 10: Startup And Adjustment

    Type EZR TYPE PRX/120 TYPE PRX/125 WORKING MONITOR PILOT TYPE PRX/120 PILOT (NO RESTRICTOR SCREW) PILOT (PLUGGED) FILTER FILTER OUTLET INLET M1001 INTERMEDIATE INLET PRESSURE TYPE PRX: OUTLET PRESSURE S- SUPPLY PORT ATMOSPHERIC PRESSURE B- BLEED PORT LOADING PRESSURE L- LOADING PORT INTERMEDIATE PRESSURE A - SENSING PORT Figure 5.

  • Page 11: Pilot Adjustment

    Type EZR of the Type PRX should be located on the same side of the downstream block valve. Keep sense and bleed lines separate. Startup for Both Single-Regulator and Monitoring Installations   1. Make sure all block and vent valves are closed.   2. Back out the pilot adjusting screw(s).   3.   F or easy initial startup, set the restrictor to the “8”  position. For future startups, the restrictor can be left in the desired run position.
  • Page 12 Type EZR Table 5. 161 and 161EB Series Pilot Adjustment Recommendations RECOMMENDED TYPE 112 RESTRICTOR TYPE 112 RESTRICTOR SETTINGS TO AVOID PILOT TYPE SETTINGS FOR LOW FLOW OPERATION AT LOW FLOW Avoid restrictor setting of “2” or less if continuous  161/161H Series Pilots Restrictor Setting of “5” or greater flows are expected to be less than 5%  of maximum capacity Avoid restrictor setting of “2” or less if continuous ...

  • Page 13: Maintenance

    Type EZR Table 8. Diaphragm Material Selection Information 17E68 17E97 17E88 NITRILE (NBR) NITRILE (NBR) FLUOROCARBON (FKM) Gas Temperature (for lower temperatures -20 to 150°F / -29 to 66°C 0 to 150°F / -18 to 66°C 0 to 260°F / -18 to 127°C   contact your local Sales Office) Best for high pressure conditions, i.e. Best for natural gas having aromatic transmission service or high pressure General Applications Best for cold temperatures.
  • Page 14 Type EZR Table 10. Main Valve Maximum Pressure Ratings, Diaphragm Selection Information and Main Spring Selection MAXIMUM MAXIMUM MAXIMUM OPERATING EMERGENCY INLET OPERATING INLET BODY SIZE DIAPHRAGM MAIN SPRING DIAPHRAGM DIFFERENTIAL AND DIFFERENTIAL PRESSURE NPS / DN MATERIAL COLOR CODE DESIGNATION PRESSURE PRESSURE...
  • Page 15 Type EZR LOADING CONNECTION: 1/4 NPT PIPE CONNECTS TO TYPE EZR DIAPHRAGM LOADING PORT PILOT SUPPLY CONNECTION: 1/4 NPT PIPE CONNECTS TO UPSTREAM PILOT SUPPLY TAP OUTLET CONNECTION: 1/4 NPT PIPE CONNECTS TO PILOT INLET CONNECTION OPTIONAL LOADING CONNECTION: 11B5004-A 1/4 NPT NORMALLY PLUGGED TYPE 112 CONTROL LINE CONNECTION:...
  • Page 16 Type EZR Type EZR Main Valve Trim Parts ELASTOMER/FABRIC MATERIAL CODE YEAR OF MANUFACTURE THICKNESS Instructions are given for complete disassembly and CODE RADIAL LOCATION assembly. The main valve may remain in the pipeline TO LOCATE during maintenance procedures. Key numbers are IMPRINT CODE referenced in Figures 14 through 18.
  • Page 17 Type EZR Table 12. Troubleshooting Guide PROBLEM POSSIBLE SOLUTION Outlet pressure suddenly rises above  •  If travel indicator is in UP position, check restrictor and pilot supply filter for plugging setpoint and approaches inlet pressure  •  If travel indicator is in DOWN position, check main valve for debris or diaphragm damage  •  Check main valve inlet strainer for plugging  •  Check inlet pressure at high flow condition  Outlet pressure normal at low flow but   •  Check sizing calculations to be sure main valve body is large enough for load  falls below setpoint at high flow  •  Check for undersized or restricted control line (use the minimum size given in step 6 of All Installations of the  Type EZR Installation section).  •  Adjust restrictor to a lower setting  •  Adjust restrictor to a higher setting Outlet pressure cycles  • ...
  • Page 18 Type EZR DIAPHRAGM (KEY 9) BOTTOM PLUG (KEY 11) O-RING FLANGED (KEY 14) LOCKNUT (KEY 13) O-RING TOP PLUG (KEY 70) (KEY 5) O-RING (KEY 10) W7394 Figure 9. Diaphragm and Plug Assembly Components   8.   L ubricate cap screws (key 3) and secure the      •  O-ring (key 14) bonnet (key 2), using an even crisscross pattern. It ...
  • Page 19 Type EZR INDICATOR FITTING MAIN SPRING UPPER SPRING (KEY 19) (KEY 12) SEAT (KEY 17) O-RING INDICATOR STEM (KEY 15) (KEY 18) HEX NUTS (KEY 4) INDICATOR COVER (KEY 21) BACK-UP RINGS INDICATOR (KEY 16) WASHER (KEY 79) O-RING (KEY 6) (NPS 6 / DN 150 SIZE ONLY) W7400_1 INDICATOR...
  • Page 20 Type EZR 161EB Series Pilots (Figure 19) Note This procedure covers all 161EB Series pilots. Types 161EB and 161EBM rated for outlet pressure settings over 200 psig / 13.8 bar require a diaphragm limiter. Types 161EB and 161EBM pilots rated for outlet pressure settings under 200 psig / 13.8 bar do not require a diaphragm limiter.
  • Page 21 Type EZR   4.   R emove the cotter pin (key 15) if it is necessary to  BODY SEAL O-RING (KEY 11) replace the disk assembly (key 13) or the throat  seal O-ring (key 31) of a Type 161AYM. BACK-UP RING (KEY 50) BODY (KEY 1) 5. For a Type 161AYM, inspect the throat seal O-ring (key 31) and remove the machine screw (key 33).  Replace O-ring if necessary.   6.   I nstall the disk assembly (key 13) and secure it  with the cotter pin (key 15). Figure 12.
  • Page 22 Type EZR   6. Set the pad holder (key 22) in the body (key 16).   7.   L ightly lubricate the rims of the diaphragm (key 14)  and place it on top of the pad holder (key 22).  Set the upper diaphragm plate (key 13) on  the diaphragm.   8.   L ightly lubricate the O-ring (key 18) and place it in  the lower cover (key 21). W4573   9.   P lace the washer (key 11) and stem nut (key 20)  Figure 13. Pushing Groove Valve Up With Retainer on the stem (key 23) and tighten. If also performing  13.   I nsert the control spring (key 6) into the spring  Upper Case Maintenance, skip to step 2 of the  case (key 3), followed by the baffle plate (key 56)  Upper Case Maintenance section. and adjusting screw (key 35). 10.   I nsert machine screws (key 10) in the lower cover  14.  ...

  • Page 23: Parts Ordering

    Type EZR Parts Ordering Damper and Restrictor Maintenance   1. Remove screw (key 31, Figure 27) and plate (key 29). When corresponding with your local Sales Office about  this equipment, reference the equipment serial number   2. Remove ring nuts (key 30). or FS number found on a nameplate attached to the   3.   R emove damper adjusting screw (key 27).  bonnet. When ordering replacement parts, reference Remove and inspect O-ring (key 28) for damage ...
  • Page 24 Type EZR Table 14. Type EZR Main Valve Body Part Numbers (key 1, Figure 14) BODY STYLE BODY SIZE, BODY END CONNECTION Standard NPS / DN MATERIAL STYLE Tapped Inlet and Tapped Outlet (Included Tapped Inlet) GE11581X012 - - - - - - - - - - - GE11440X012 CL150 RF ...
  • Page 25 Type EZR Table 14. Type EZR Main Valve Body Part Numbers (key 1, Figure 14) (continued) BODY STYLE BODY SIZE, END CONNECTION BODY MATERIAL Standard NPS / DN STYLE Tapped Inlet and Tapped Outlet (Included Tapped Inlet) CL150 RF GE19084X012 CL300 RF GE19089X012 8 x 6 /...
  • Page 26 Type EZR Description Part Number Description Part Number 7  Cage (continued) O-ring (continued) NPS 3 / DN 80 body 48B5961X012 NPS 8 / DN 200 body NPS 4 / DN 100 body 48B2135X012 Nitrile (NBR) 1F4636X0032 NPS 6 x 4 / DN 150 x 100 body 29B1881X012 Fluorocarbon (FKM) 1N571406382...
  • Page 27 Type EZR 48B2142 B2617_2 MAIN VALVE ASSEMBLY FOR NPS 1, 1-1/4 x 1, 2 x 1, 2, 3, 4, 6 x 4 AND 8 x 4 / DN 25, 32 x 25, 50 x 25, 50, 80, 100, 150 x 100 AND 200 x 100 BODY SIZES (NOTE: SEE NPS 2 x 1 / DN 50 X 25 ASSEMBLY FOR ADDITIONAL PARTS) Figure 14.
  • Page 28 Type EZR Description Part Number Description Part Number O-ring (continued) Indicator Plug NPS 8 / DN 200 body NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25 Nitrile (NBR) 1P5585X0022 and 50 x 25 bodies 19B2409X012 Fluorocarbon (FKM) 1P5585X0032...
  • Page 29 Type EZR TOP PLUG (KEY 5) O-RING (KEY 14) O-RING (KEY 70) DIAPHRAGM (KEY 9) BOTTOM PLUG (KEY 11) O-RING (KEY 10) 19B2408 LOCK WASHER (KEY 130) SOCKET HEAD SCREW (KEY 129) NPS 1, 1-1/4 x 1 AND 2 x 1 / DN 25, 32 x 25 AND 50 x 25 DIAPHRAGM ASSEMBLY 49B5067 MAIN VALVE ASSEMBLY FOR NPS 6, 8 x 6 AND 12 x 6 /...
  • Page 30 Type EZR 40C3570-C APPLY LUBRICANT (L) PARTS NOT SHOWN: 63 MAIN VALVE ASSEMBLY FOR NPS 8 / DN 200 BODY Figure 14. Type EZR Main Valve (continued)
  • Page 31 Type EZR B2617_A2 Figure 15. Type EZR Nameplate and Flow Arrow B2617_C B2617_D Figure 16. Type EZR Restricted Trim Figure 17. Type EZR Cage O-ring Placement B2617_E NPS 1, 1-1/4 x 1, 2 x 1, 2, 3 AND 4 / NPS 6 x 4, 8 x 4, 6, 8 x 6, 12 x 6 / DN 25, 32 x 25, 50 x 25, 50, 80 AND 100 BODY SIZES DN 150 x 100, 200 x 100, 150, 200 x 150, 300 x 150 BODY SIZES...
  • Page 32 Type EZR 37B1199 37B1193 APPLY LUBRICANT (L) TYPE 161EB PILOT TYPE 161EBM PILOT SENSE (CONTROL) PORT SENSE (EXHAUST) PORT 31B5012-A TYPE 161EBM PILOT Figure 19. 161EB Series Pilots...
  • Page 33 Type EZR Table 15. 161EB Series Pilot Part Numbers (keys 7, 8, 9, 10 and 11, Figure 19) OUTLET (CONTROL) PRESSURE RANGE AND SPRING COLOR CODE Type 161EB or 161EBM Type 161EB PART NAME 5 to 15 psig / 10 to 40 psig / 30 to 75 psig / 70 to 140 psig / 130 to 200 psig /...
  • Page 34 Type EZR TYPE 161AY B2631 B2632 B2631 TYPE 161AYM Figure 20. Types 161AY and 161AYM Pilots...
  • Page 35 Type EZR 34B7733A 30B4383 OPTIONAL QUICK DISCONNECT UNION PILOT MOUNTING STANDARD PILOT MOUNTING Figure 21. 161EB Series Mounting Parts Type 161AY or 161AYM Pilot (Figure 20) Description Part Number Description Part Number   Parts Kit (included are keys 10, 11, 12, 13, 15, 25, Guide Insert 27B4028X022 30, 31, 33, 45, 48 and 49) RY690AX0012 Hex Nut 1A354024122...
  • Page 36 Type EZR 161EB Series Mounting Parts (Figure 21) For Working Monitor Set Standard Configuration Description Part Number 4  Nut, SA194 (2 required)  1C330624072  Description Part Number Pipe Nipple, Plated Steel NPS 1 and 1-1/4 x 1 / Pipe Nipple, Plated steel DN 25 and 32 x 25 bodies - - - - - - - - - - - NPS 1 / DN 25 body - - - - - - - - - - -...
  • Page 37 Type EZR Pounds to Inches (161AY/161EB Series Pilots) Monitor System Mounting Parts (Figure 25) Description Part Number Pipe Nipple, Galvanized Steel - - - - - - - - - - - Bushing, Plated Steel (2 required) - - - - - - - - - - - Pipe Nipple, Galvanized Steel - - - - - - - - - - - 139 ...
  • Page 38 Type EZR B2612 Figure 24. Pounds to Pounds (161EB Series Pilots) Working Monitor Mounting Parts PILOT TYPE 399A OR EZR TYPE 161 OR 161M TYPE 112 TYPE 252 TYPE 161AYM 41B5009 37B8952 Figure 25. Pounds to Inches (161AY/161EB Series Pilots) Figure 26.
  • Page 39 Type EZR Pre-piped Pilot Supply (Figure 26) Description Part Number 59  Pipe Nipple, for use without Type 252 filter NPS 1 / DN 25 body - - - - - - - - - - - NPS 2, 3 and 4 / DN 50, 80 and 100 bodies - - - - - - - - - - - NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 and 300 x 150 bodies...
  • Page 40 Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.

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