Page 1
Installation Guide
English – May 2002
Type EZR
Introduction
This installation guide provides instructions for installation,
startup, and adjustment. To receive a copy of the instruction
manual, contact your local Fisher Sales
Office or Sales Representative or view a copy at
www.FISHERregulators.com. For further information refer to:
Type EZR Instruction Manual, form 5468, D102600X012.
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 Series or 161AY Series pilot. For applications
that have high pressure drops, using a Type 161AYM,
161EBM, or 161EBHM monitor pilot will increase the accuracy of the regulator.
P.E.D. Categories
This product may be used as a safety accessory with
pressure equipment in the following Pressure Equipment
Directive 97/23/EC categories. It may also be used outside of the Pressure Equipment Directive using sound
engineering practice (SEP) per table below.
EZISTCUDORPSEIROGETAC
)hcni-1(52NDPES
,051x002,051,001,08,52x05,05ND
)hcni-6x8,6,4,3,1x2,2(051x003dna
III,II,I
DIULF
PUORG
1
Specifications
Main Valve Body Sizes, End Connection Styles,
and Structural Design Ratings
See table 1
Maximum Inlet Pressures and Pressure Drops
Main Valve: See table 6
Pilots: See table 3
Restrictor: 103 bar (1500 psig)
Outlet (Control) Pressure Ranges
See table 2
Minimum and Maximum Differential Pressures
See tables 4 and 6
Proof Test Pressure
All Pressure Retaining Components have been
proof tested per Directive 97/23/EC - Annex 1,
Section 7.4
(1)
(1)
(1)
(1)
Temperature Capabilities
(1)
See table 5
Pilot Type Descriptions
Type 161AY—Low-pressure pilot with an outlet pressure
range from 15 mbar to 0,48 bar (6-inches w.c. to 7 psig).
Pilot bleeds (exhausts) downstream through the sense
(control) line.
Type 161AYM—The monitor version of the Type 161AY
pilot. The pilot bleed (exhaust) is isolated from the
sense (control) line. This pilot is used in monitoring
systems requiring an isolated pilot bleed (exhaust).
Type 161EB—High accuracy pilot with an outlet pressure
range from 0,34 to 24,2 bar (5 to 350 psig). Pilot bleeds
(exhausts) downstream through the sense (control) line.
Type 161EBM—The monitor version of the Type 161EB
pilot. The pilot bleed (exhaust) is isolated from the
sense (control) line. This pilot is used in monitoring
systems requiring an isolated pilot bleed (exhaust).
Type 161EBH—The high-pressure version of the
Type 161EB pilot with an outlet pressure range from
17,2 to 48,3 bar (250 to 700 psig).
Type 161EBHM—The high-pressure version of the
Type 161EBM pilot with an outlet pressure range from
17,2 to 48,3 bar (250 to 700 psig).
Installation
Only qualified personnel should install or service
a regulator. Regulators should be installed,
operated, and maintained in accordance with
international and applicable codes and
regulations, and Fisher instructions.
If the regulator vents fluid or a leak develops in
the system, it indicates that service is required.
Failure to take the regulator out of service
immediately may create a hazardous condition.
Personal injury, equipment damage, or leakage due
to escaping fluid or bursting of pressure-containing
parts may result if this regulator is overpressured
or is installed where service conditions could
exceed the limits given in the Specifications section,
or where conditions exceed any ratings of the
adjacent piping or piping connections.
1. The pressure/temperature limits in this installation guide and any applicable
standard or code limitation should not be exceeded.
Table 1. Main Valve Body Sizes, End Connection Styles, and Body Ratings
,EZISYDOBEVLAVNIAM
)HCNI(ND
,001,08,52x05,05,52
051x002,051
)6x8,6,4,3,2,1x2,1(
EVLAVNIAM
LAIRETAMYDOB
(EWSroTPN52x05,05,52ND)ylno)0841(201)0222(351
leetSBCW
Patent Numbers 5,964,446 and 6,102,071
Additional Patents Pending
SELYTSNOITCENNOCDNE
FR051ssalCISNA)582(6,91)824(5,92
FR003ssalCISNA)047(0,15)0111(5,67
EWBroFR006ssalCISNA)0841(201)0222(351
www.FISHERregulators.com
)gisp(rab
,GNITARNGISEDLARUTCURTS
,ERUSSERPTSETFOORP
)GISP(rab
D102600XENG
Page 2
Type EZR
To avoid such injury or damage, provide pressurerelieving or pressure-limiting devices (as required
by the appropriate code, regulation, or standard) to
prevent service conditions from exceeding limits.
Additionally, physical damage to the regulator could
result in personal injury and property damage due
to escaping fluid. To avoid such injury and damage,
install the regulator in a safe location.
Clean out all pipelines before installation of the regulator
and check to be sure the regulator has not been damaged or
has collected foreign material during shipping. For NPT
bodies, apply pipe compound to the male pipe threads. For
flanged bodies, use suitable line gaskets and approved
piping and bolting practices. Install the regulator in any
position desired, unless otherwise specified, but be sure
flow through the body is in the direction indicated by the arrow
on the body.
Table 3. Pilot Pressure Ratings
EPYT
rab)GISP(
YA1613,01()0513,01)051(3,01)051(--------
BE161301(0051) 7,38)0021(7,15)057(--------
HBE161301( )00517,38)0021(7,15)057(--------
MYA1613,01()0513,01)051(----3,01)051(3,01)051(
MBE161301( )00517,38)0021(----301)0051(7,15)057(
MHBE161031( )00517,38)0021(----301)0051(7,15)057(
TELNIMUMIXAM
,ERUSSERP
)1(
ERUSSERP
,rab)GISP(
-TUOYCNEGREMEMUMIXAM
MUMIXAMROERUSSERPTEL
ESNESYCNEGREME
Table 2. Outlet (Control) Pressure Ranges
EPYTTOLIPEGNARERUSSERP)LORTNOC(TELTUO
rabm73ot51
roYA161
MYA161
roBE161
MBE161
roHBE161
MHBE161
.)gisp054(rab0,13
TELTUOMUMIXAM
,ERUSSERP
rab)GISP(
rab)GISP(
rab380,0ot430,0
rab371,0ot380,0
rab13,0ot371,0
rab84,0ot13,0
rab30,1ot43,0
rab67,2ot96,0
rab71,5ot70,2
rab56,9ot38,4
rab8,31ot69,8
rab1,42ot8,31
rab0,13ot2,71
rab3,84ot6,72
DEELBMUMIXAM
ERUSSERP)TSUAHXE(
,STOLIPROTINOMROF
.)ruccoyamegamadstraplanretnidnaerehpsomtaotgnikael(noitarepolamronbagnirudgnitsrubmorfsgnisacehttneverpoterusserpmumixaM.1
)gisp2.1ot5.0(
)gisp5.2ot2.1(
)gisp5.4ot5.2(
)gisp7ot5.4(
)gisp51ot5(
)gisp04ot01(
)gisp57ot03(
)gisp041ot07(
)gisp002ot031(
)gisp053ot002(
)1(
gisp054ot052()
)1(
)gisp007ot004(
rab)GISP(
).c.wsehcni-51ot6(
otdetimilsismgarhpaidtolipremotsaleoroulfroferusserpgnitarepomumixamehT.1
ESNESMUMIXAM
ERUSSERP)LORTNOC(
,STOLIPROTINOMROF
Table 4. Main Valve Minimum Differential Pressures
YDOBEVLAVNIAM
)HCNI(ND,EZIS
52x05,52
)1x2,1(
)2(05
)3(08
)4(001
051x002,051
)6x8,6(
TRAPGNIRPSNIAM
ROLOCDNAREBMUN
)1(
etihW,210X9932B91
eulBthgiL,210X0042B919,1)82(9,1)82(4,2)53(9,1)82(9,1)82(8,2)14(
)2(
kcalB,210X1042B91
)1(
wolleY,210X1590B91
neerG,210X6212B811,1)61(5,1)12(0,2)92(4,1)02(7,1)52(1,2)03(
)2(
deR,210X5595B81
)1(
wolleY,2100T48141T
eulBthgiL,210X1870B910,1)51(0,1)51(2,1)81(4,1)12(4,1)12(5,1)22(
)2(
kcalB,210X2870B91
)1(
wolleY,2100T48141T
neerG,210X1058B819,0)41(9,0)51(2,1)71(5,1)22(7,1)42(7,1)42(
)2(
deR,210X2058B81
)1(
wolleY,210X4630B91
neerG,210X6630B910,1)51(0,1)51(1,1)61(2,1)71(3,1)91(4,1)02(
2()
deR,210X5630B91
3,1()913,1)91(5,1)22(3,1)91(4,1)02(7,1)42(
8,2)04(8,2)14(2,3)74(8,2)04(9,2)24(8,4)07(
9,0)31(2,1)71(7,1)42(9,0)31(2,1)71(7,1)42(
6,1)32(9,1)82(1,2)03(1,2)03(1,2)13(2,2)23(
79,0)41(79,0)41(2,1)71(2,1)81(2,1)81(3,1)91(
8,1)62(8,1)62(8,1)72(3,2)33(3,2)33(3,2)33(
96,0)01(67,0)11(38,0)21(2,1)81(4,1)02(4,1)02(
4,1)02(7,1)42(0,2)92(1,2)03(1,2)03(1,2)03(
6,0)8(6,0)9(96,0)01(96,0)01(96,0)01(9,0)31(
1,1)61(3,1)81(3,1)91(4,1)02(7,1)42(7,1)42(
Table 5. Temperature Capabilities
)RBN(ELIRTIN76E71)RBN(ELIRTIN86E71)RBN(ELIRTIN79E71)MKF(REMOTSALEOROULF88E71
)C°66ot°71-(F°051ot°0)C°66ot°82-(F°051ot°02-)C°66ot°71-(F°051ot°0)C°121ot°71-(F°052ot°0
,YTICAPACEGACFOTNECREP,LAITNEREFFIDMUMINIMdrab)DISP(
yticapaC%09roFyticapaC%001roF
mirT%001mirT%06mirT%03mirT%001mirT%06mirT%03
.)rab9,6(gisp001rednuserusserptelnirofdednemmocerylnoerasgnirpswolleydnaetihwehT.1
.)rab5,43(gisp005revoserusserptelnirofdednemmocerylnoerasgnirpskcalbdnaderehT.2
2
Page 3
Table 6. Main Valve Maximum Pressures
ROLOCGNIRPSNIAM
wolleY/etihWllA9,6)001(9,6)001(9,6)001(
neerG/eulBthgiLllA5,43)005(5,43)005(7,15)057(
)1(
deR/kcalB
MGARHPAID
LAIRETAM
elirtiN76E71
elirtiN86E71
elirtiN79E71llA4,27)0501(2,55)008(4,27)0501(
remotsaleoroulF88E71llA7,15)057(5,43)005(7,15)057(
,EZISYDOB
)HCNI(ND
llA4,27)0501(2,55)008(4,27)0501(
,EZISYDOB
)HCNI(ND
)2(055,43)005(5,43)005(7,15)057(
)4(0018,42)063(7,02)003(7,15)057(
52x05,05,52
)1x2,2,1(
,051,001,08
051x002
)6x8,6,4,3(
Type EZR
,ERUSSERPrab)GISP(
TELNIGNITAREPOMUMIXAM
TELNIGNITAREPOMUMIXAM
,ERUSSERPrab)GISP(
7,13)064(5,72)004(7,13)064(
8,42)063(7,02)003(5,43)005(
.)gisp005(rab5,43revoserusserptelnirofdednemmocerylnoerasgnirpskcalbdnaderehT.1
GNITAREPOMUMIXAM
)GISP(rab
)GISP(rab
,ERUSSERPLAITNEREFFID
SERUSSERP
GNITAREPOMUMIXAM
,ERUSSERPLAITNEREFFID
.)F°051(C°66otdetimileraserutarepmetmgarhpaidremotsaleoroulf)disp004(drab6,72evobaserusserplaitnereffidroF.2
TELNIYCNEGREMEMUMIXAM
LAITNEREFFIDDNA
)2(
)DISP(drab,
TELNIYCNEGREMEMUMIXAM
LAITNEREFFIDDNA
)DISP(drab,SERUSSERP
When using an inlet strainer (key 23), do not use
the shim (key 23) and vise versa.
When installing a Type EZR trim package in an
existing E-body, make sure flow is up through the
center of the cage and down through the cage
slots. In some cases, correct flow path is
achieved by removing the body from the line and
turning it around. If this is done, change the flow
arrow to indicate the correct direction. Damage
may result if flow is not in the correct direction.
After assembly, check the regulator for shutoff
and leakage to atmosphere.
Note
It is important that the regulator be installed so that
the vent hole in the spring case is unobstructed at all
times. For outdoor installations, the regulator should
be located away from vehicular traffic and positioned
so that water, ice, and other foreign materials cannot
enter the spring case through the vent. Avoid placing
the regulator beneath eaves or downspouts, and be
sure it is above the probable snow level.
Startup
The regulator is factory set at approximately the midpoint of
the spring range or the pressure requested, so an initial
adjustment may be required to give the desired results. With
proper installation completed and relief valves properly
adjusted, slowly open the upstream and downstream shutoff
valves.
Adjustment
To change the outlet pressure, remove the closing cap or
loosen the locknut and turn the adjusting screw clockwise
to increase outlet pressure or counterclockwise to decrease
pressure. Monitor the outlet pressure with a test gauge
during the adjustment. Replace the closing cap or tighten
the locknut to maintain the desired setting.
Taking Out of Service (Shutdown)
To avoid personal injury resulting from sudden
release of pressure, isolate the regulator from all
pressure before attempting disassembly.
Overpressure Protection
The recommended pressure limitations are stamped on
the regulator nameplate. Some type of overpressure
protection is needed if the actual inlet pressure exceeds the
maximum operating outlet pressure rating. Overpressure
protection should also be provided if the regulator inlet
pressure is greater than the safe working pressure of the
downstream equipment.
Regulator operation below the maximum pressure limitations
does not preclude the possibility of damage from external
sources or debris in the line. The regulator should be inspected
for damage after any overpressure condition.
Make sure to use a Type EZR bonnet. The Type
EZR bonnet is NOT interchangeable with other
Fisher E-body bonnets. Installing an improper
bonnet can result in stem assembly breakage
and unit failure. The bonnet can be identified by
the EZR markings on the top.
3
Page 4
Type EZR
Main Valve Parts List
Key Description
1 Valve Body
2 Bonnet Assembly
4 Hex Nut
5 Top Plug
6 O-Ring
7 Cage
8 Cage O-Ring
9 Diaphragm
10 O-Ring
11 Bottom Plug
12 Main Spring
13 Flanged Locknut
14 Top Plug O-Ring
15 Stem
16 Backup Ring
17 Upper Spring Seat
18 O-Ring
19 Indicator Fitting
20 Indicator Washer
21 Indicator Cover
22 Indicator Protector
23 Inlet Strainer
28 O-Ring
63 Pilot Supply Pipe Plug
64 Bonnet Pipe Plug
66 O-Ring
67 O-Ring
70 O-Ring
71 Restrictor Plate
72 E-Ring
79 Washer
83 Machine Screw
121 O-Ring
126 Cap Screw
129 Socket Head Screw
130 Lock Washer
TOP PLUG (KEY 5)
O-RING (KEY 14)
O-RING (KEY 70)
DIAPHRAGM (KEY 9)
BOTTOM PLUG (KEY 11)
O-RING (KEY 10)
LOCK WASHER (KEY 130)
SOCKET HEAD SCREW (KEY 129)
DN 25 AND 50 X 25 (1 AND 2 X 1-INCH)
DIAPHRAGM ASSEMBLY
B2517_B
DN 50 (2-INCH) BODY SIZE
B2617_E
DN 25, 5- x 25, 80, 100, 150
(1, 2 x 1, 3, 4, AND 6-INCH) BODY SIZES
B2617_C
RESTRICTED TRIM
B2617_2
MAIN VALVE ASSEMBLY
8 X 6-INCH RESTRICTOR PLATE O-RING PLACEMENT
Figure 1. Type EZR Main Valve Assembly
4
Page 5
Type EZR
161EB Series
Parts List
Key Description
1 Body Assembly
2 Spring Case
3 Body Plug
4 Valve Plug
6 Plug Spring
7 Diaphragm Assembly
8 Control Spring Seat
9 Control Spring
10 Diaphragm Limiter
11 Adjusting Screw
12 Locknut
13 Machine Screw
14 Pipe Plug
15 Body Plug O-Ring
16 Closing Cap
17 Closing Cap Gasket
18 Y602-12 Vent Assembly
19 Stem Guide Seal Assembly
30B4395-E
TYPE 161EB PILOT
31B5012-A
TYPES 161EBM AND 161EBHM PILOTS
32B0707-B
TYPE 161EBH PILOT
Figure 2. 161EB Series Assemblies
SENSE
(CONTROL)
PORT
SENSE
(EXHAUST)
PORT
Types 161AY and 161AYM
Parts List
Key Description
1 Body
2 Cap Screw
3 Spring Case Assembly
4 Lower Casing
6 Orifice
7 Diaphragm Head
8 Pusher Post
10 Diaphragm
11 Body Seal
12 Insert Seal
13 Disk Assembly
14 Stem
15 Cotter Pin
16 Lever Assembly
17 Machine Screws
18 Guide Insert
21 Hex Nut
22 Closing Cap
23 Hex Nut
24 Cap Screw
25 Closing Cap
26 Vent Assembly
27 Pipe Plug
30 Stem Seal O-Ring
31 Throat Seal
33 Machine Screw
35 Adjusting Screw
37 Spring Holder
38 Machine Screw
39 Overpressure Spring
40 Pusher Post Connector
46 Nameplate
47 Drive Screw
48 Post Seal
49 Connector Seal
50 Backup Ring
55 Restriction
56 Baffle Plate
B2631
TYPE 161AYM PILOT
B2631
TYPE 161AY PILOT
B2632
Figure 3. Types 161AY and 161AYM Assemblies
5
Page 6
Type EZR
Type 112 Restrictor
Parts List
Key Description
14 Pipe Plug
21 Body
22 Grove Valve
23 Retainer
24 Grove Valve O-Ring
20B4393-A
Figure 4. Type 112 Assembly
Type 252 Filter
Parts List
Key Description
1 Filter Head Assembly
2 Filter Body
3 Lower Seat
4 Filter Cartridge
5 O-Ring
6 Pipe Plug
7 Drain Valve (Optional)
8 Upper Seat
OPTIONAL DRAIN VALVE
STANDARD BODY
A7013
EXTENDED BODY
Figure 5. Type 252 Assembly
©Fis her C ontro ls Inte rnati onal, I nc., 2002; All R ights Rese rved
Fisher and Fisher Regulators are marks owned by Fisher Controls International, Inc. The Emerson logo is a trade mark and service mark of Emerson Electric Co.
All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express
or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
For information, contact Fisher Controls, International:
Within USA (800) 588-5853 – Outside USA (972) 542-0132
Italy – (39) 051-4190-606
Singapore – (65) 770-8320
Mexico – (52) 57-28-0888
Printed in U.S.A.
www.FISHERregulators.com
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