Emerson Fisher EZR User manual

Type EZR
Europe, Middle East and Africa Only
Summary
Introduction......................................................................... 1
Description.......................................................................... 1
Characteristics.................................................................... 2
Labelling ............................................................................. 4
Operation............................................................................ 5
Dimensions and Weights.................................................... 6
Installation .......................................................................... 7
Commissioning................................................................... 9
Maintenance.......................................................................10
Spare Parts.........................................................................13
INTRODUCTION
The Type EZR is a pilot-operated regulator used in
transmission and distribution networks or pipe lines
supplying industries and commercial businesses.
The Type EZR can be equipped with a slam shut Type OS2
(Type EZR body change) which permits the gas ow to be
cut o󰀨 rapidly and totally in the case of under or over outlet
regulator pressure.
Description
Main Valve
The Type EZR consists of:
A version without integral slam shut:
• A body («E body» type), a bonnet
• A regulation subassembly consisting of a slotted cage and
a diaphragm/plug
• A travel indicator, an inlet screen
• A pilot assembly consisting of a lter, an adjustable restrictor
and a pilot
A version with integral slam shut:
• A body («X body» type), a bonnet, a connecting part
• A regulation subassembly consisting of a slotted cage
and a diaphragm/plug
• A travel indicator
• A pilot assembly consisting of a lter, an adjustable restrictor
and a pilot
• A slam shut orice
• A integral O-ring tightshut valve/bypass assembly
• A release relay Type OS2 according to
D103683X012_OS2_IM:
- a mechanism box (BM)
- a safety manometric box (BMS) to be connected outlet
side of the regulator
Pilot-Operated Regulator
Instruction Manual
D103681X012
January 2020
The Type EZR is in conformity with the
PED 2014/68/EU and is classied in Category IV.
Figure 1. Type EZR Pilot-Operated Regulator

B05c
Type EZR
2
Europe, Middle East and Africa Only
Pilot
Type PRX/120:
Outlet pressure range of 1 to 40 bar. The Type PRX/120
can be used as the pilot on single stage pressure reducing
regulators or as the monitor pilot or as the working pilot in
wide-open monitor systems.
Type PRX/120-AP:
Outlet pressure range of 30 to 80 bar. The Type PRX/120-
AP can be used as the pilot on single stage pressure
reducing regulators or as the monitor pilot or as the working
pilot in wide-open monitor systems.
Type PRX/125:
Identical to the Type PRX/120 except the restriction screw
is removed. The Type PRX/125 can only be used as the
monitor override pilot on working monitor applications.
• Type PRX/125-AP:
Identical to the Type PRX/120-AP except the restriction
screw is removed. The Type PRX/125-AP can only
be used as the monitor override pilot on working
monitor applications.
• Type 161EB
High accuracy pilot with an outlet pressure range of 0.34 to
24.1 bar. 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.
• Type 161EBHM
The high pressure version of the Type 161EBM pilot with
an outlet pressure range from 17.2 to 48.3 bar.
Regulator Options
• Travel Indicator
• Relief Size-reduction Trim
CHARACTERISTICS
Table 1. General Characteristics for Type EZR Regulator
Operating pressure PS 72.4 bar(1) SLAM SHUT
Operating temperature TS -17 / 66°C(1)
Accuracy AG 2.5
REGULATOR 5 (Piston)
Outlet pressure Pa 0.35 to 69 bar Set point range Pt up to 100 bar
Minimum di󰀨erential ∆P min 2 to 3 bar
Fluid
Groups 1 and 2 according to PED 97/23/EC 1st and 2nd family gas according
to EN 437 or other gases (compressed air, nitrogen). The gas must be
noncorrosive, clean (ltration on inlet side necessary) and dry.
Maximum operating di󰀨erential
PN 20
∆P max
18.6 bar
PN 50 50.0 bar
PN 100 55.2 bar
Max emergency di󰀨erential ∆P emerg 72.4 bar
Accuracy AC 2.5 - 5
1. Values correspond to the characteristics of the regulator diaphragm.
Table 2. Pressure and Temperature Characteristics
Body Pmax (bar) Tmin (°C) Tmax (°C)
A216WCB 96.7 -20 71
A352LCC 100 -30 71
The regulator body and the slam shut have been designed to support di󰀨erent pressure and temperature levels

B05a
B05b
Type EZR
3
Europe, Middle East and Africa Only
Material
Regulator
Body Steel
Bonnet Steel
Slotted disc Stainless steel
Diaphragm, O-rings Nitrile (NBR)
Slam shut
Connecting part Steel
Orice Stainless steel
Valve plug Stainless steel
Pilot
Body Stainless steel or Steel
Manometric box Stainless steel or Aluminium
Restrictor Stainless steel
Filter Aluminium or Steel
Cartridge Polythene
Connections
Inlet / Outlet: CL150 RF - CL300 RF - CL600 RF
PN 16B - PN 25B - PN 40B
Other congurations
available (contact factory)
Pilot Impulse line (IP): 1/4’’ NPT tapped
Pilot Monitor impulse line (IM): 1/4’’ NPT tapped
Intermediate impulse line (PI): 1/4’’ NPT tapped
Slam shut impulse line (IS): 1/4’’ NPT tapped
Mechanism box vent (E): 1/4’’ NPT tapped
Impulse diameter: Pipe interior Ø 8/10 mm min.
Table 4. Pilot Pressure Ranges
Type Outlet Pressure Range, bar Pilot Control Spring Information
Spring Color Part Number
PRX/120
PRX/125
1.0 to 1.8
1.8 to 3.0
3.0 to 5.5
5.5 to 8.5
Yellow
Green
Blue
Black
M0255240X12
M0255230X12
M0255180X12
M0255220X12
8.5 to 14.5
14.5 to 23.0
23.0 to 30.0
30.0 to 40.0
Silver
Gold
Aluminium
Red
M0255210X12
M0255200X12
M0255860X12
M0255190X12
PRX/120-AP
PRX/125-AP 30.0 to 80.0 Clear M0273790X12
161EB
161EBM
0.35 to 1.0
0.69 to 2.8
2.1 to 5.2
4.8 to 9.7
9.0 to 13.8
13.8 to 24.1
White
Yellow
Black
Green
Blue
Red
17B1260X012
17B1262X012
17B1259X012
17B1261X012
17B1263X012
17B1264X012
161EBH
161EBHM
17.2 to 31.0
27.6 to 48.2
Blue
Red
17B1263X012
17B1264X012
Table 3. Flow Coecients and Valve Plug Travel Information
Coe󰀩cients Capacity DN 25 DN 50 DN 80 DN 100 DN 150
Cg
100% 480 1800 3400 5550 11200
60% 290 1020 1970 3300 7150
30% 140 560 970 1690 3570
C1
100% 33 36 37 38 36
60% 29 28 29 27 30
30% 30 29 26 26 26
Valve plug travel (mm) 35 35 50 50 50

0062
(Gaz Naturel)
28320 Gallardon-France
REGULATEUR/
REGULATOR
IV
GROUPE
1
N°
série
serial
DateFab/Test
Mfg/Test date
Cat
PS
norme
standard
EN 334
mode défaillance
failure mode
DN PN
Pumax bar
FISHER
FRANCEL
PT bar
Temp TS -17/+66°C
-
Class
DS
Type Cg
matériau
shell
A352LCC+A350LF2
bar
Other configurations available(contactfactory)
EZR
Date DD MM YEAR
DN 25 50 80 100
-
150
CL150 RF CL300 RF CL600 RF 16B 25B 40B
PN
PNCLASS
PT
PS
Pumax
150
18.6
18.6
32
Reduction
CgSee Flow Table 3
100% 60% 30%
300
50
79
50
600
72.4
114
72.4
16B
16
26
16
25B
25
40
25
40B
40
63
40
Reduction
CgSee Tabl e3
0062
(Gaz Naturel)
28320 Gallardon-France
REGULATEUR/REGULATOR
IV
EZR -
SECURITE/SLAM-SHUT
GROUPE
1
N°
série
serial
Date Fab/Test
Mfg/Test date
CatPS
norme
standard
norme
standard
EN 334
mode défaillance
failure mode
classe sécurité
slam shut class
DN PN
Pumax bar
FISHER
FRANCEL
PT bar Temp TS -17/+66°C
-
Class Type Cg
matériau
shell
A352LCC+A350LF2
OS2 -
Standard EN 14382 -
BMS 027/017 BMS 162
BMS 236/315 BMS 071
Min onlyAll
Max-Min Types of BMS
SecurityClass
AB
BMS Setting
DN 25 50 80 100
Otherconfigurations available (contactfactory)
DD MM YEAR
bar
Max only
Depending on BMS configuration
-
150
100% 60% 30%
CL150 RF CL300 RF CL600 RF 16B 25B 40B
PN
PNCLASS
PT
PS
Pumax
150
18.6
18.6
32
300
50
79
50
600
72.4
114
72.4
16B
16
26
16
25B
25
40
25
40B
40
63
40
E04a
E04b
Type EZR
4
Europe, Middle East and Africa Only
LABELLING
Figure 2. Type EZR Regulator Label
Figure 3. Type EZR Regulator with Type OS2 Slam Shut Label

B18
Type EZR
5
Europe, Middle East and Africa Only
Figure 4. Type EZR Operational Schematic
OPERATION
Regulator
The Type EZR is a pilot-driven, diaphragm/plug regulator.
Tight shuto󰀨 is achieved by the diaphragm/plug pushing
against the slotted cage, the force of the closing spring and
the inlet pressure.
• Opening
As the ow increases, the outlet pressure Pd
decreases on the outlet side of the regulator and on
the pilot diaphragm.
Due to the force of the spring, the pilot opens.
The pilot ow increases, the pressure loss through the
pilot restrictor increases.
The modulated pressure Pmdecreases.
The force of the closing spring and that of the Pm
becomes inferior to that provoked by the Pu, the
regulator OPENS.
• Closing
As the ow decreases, the Pd increases outlet side of
the regulator.
The force of the pilot diaphragm is overcome by the force
of the spring, the pilot closes.
The pressure loss through the pilot restrictor decreases.
The force of the closing spring and that of the Pm
becomes superior to that provoked by the Pu, the
regulator CLOSES.
Slam Shut
The pressure of the zone to be protected (generally the pipeline
on the outlet side of the regulator and after the slam shut) is
sensed by the safety manometric box (BMS).
If the pressure exceeds the set tripping pressure, the release
relay frees the valve plug.
Due to the force of the closing spring and the uid (trying to
close), the valve plug closes on the orice.
The gas ow is obstructed until the fault has been corrected
and the mechanism box manually rearmed.
To reopen the valve plug an equal pressure balance on inlet
and outlet sides of the regulator is required.
The mechanism box is rearmed after opening the
internal bypass.
Rearming and balancing are achieved at the same time.
INLET PRESSURE
MODULATED PRESSURE
OUTLET PRESSURE

A
223 MAX
C
H
F
G
Disassembly 25
B
J
D
E
B
J
D
E
C
A
223 MAX
A
223 MAX
C
H
F
G
Disassembly 25
B
J
D
E
B
J
D
E
C
A
223 MAX
B17a
B15b
B16b
B15a
B16a
B17b
B14b
B14a
Type EZR
6
Europe, Middle East and Africa Only
DIMENSIONS AND WEIGHTS
Table 5. Dimensions (mm) - Type EZR-OS2 (part 1)
Body
DN B C
E
H
Type 161EB
Pilot
Type PRX
Pilot
25 233 315 348 252 250
50 243 330 357 261 265
80 361 366 410 314 301
100 393 410 454 358 345
150 423 396 468 372 332
Table 6. Weights (kg) - Type EZR-OS2
Body DN CL150 RF CL300 RF CL600 RF
25 20 21 22
50 39 41 43
80 63 69 71
100 104 113 123
150 192 211 244
Table 7. Dimensions (mm) - Type EZR (part 1)
Body DN B C
E
Type 161EB
Pilot
Type PRX
Pilot
25 220 62 335 239
50 226 83 340 245
80 343 105 392 297
100 372 137 433 336
150 420 178 465 368
Table 8. Weights (kg) - Type EZR
Body DN CL150 RF CL300 RF CL600 RF
25 12 14 16
50 26 27 31
80 50 51 57
100 67 73 88
150 97 108 161
Table 9. Dimensions (mm) - Types EZR and EZR-OS2 (part 2)
Body DN
A
D J MPN CLASS
16 25 40 150 300 600
25 193.5 193.5 193.5 184 197 210 165 68 54
50 254 267 267 254 267 286 165 68 54
80 310 317 317 298 317 337 181 95 54
100 350 368 368 352 368 394 187 95 54
150 451 473 473 451 473 508 249 95 54
Table 10. Dimensions (mm) - BMS (Safety Manometric Box)
Type F G
Diaphragm 162 181
Piston 71 204
Bellows 74 223
Figure 5. Dimensions (mm) - Type EZR-OS2 Figure 6. Dimensions (mm) - Type EZR

! !
B19
Type EZR
7
Europe, Middle East and Africa Only
INSTALLATION
Personal injury or equipment damage, due
to bursting of pressure-containing parts may
result if this regulator is over-pressured or
is installed where service conditions could
exceed the limits given in the Specication
section and on the appropriate nameplate,
or where conditions exceed any rating of the
adjacent piping or piping connections.
To avoid such injury or damage, provide
pressure-relieving or pressure-limiting
devices to prevent service conditions
from exceeding those limits. Also, be sure
the installation is in compliance with all
applicable codes and regulations.
Additionally, physical damage to the regulator
could break the pilot o󰀨 the main valve,
causing personal injury and property damage
due to bursting of pressure-containing parts.
To avoid such injury and damage, install the
regulator in a safe location.
Only personnel qualied through training and
experience should install, operate and maintain
a regulator. Before installation, make sure
that there is no damage to, or debris in, the
regulator. Also make sure that all tubing and
piping are clean and unobstructed.
• The regulator is installed on horizontal
pipeline. Version with slam shut, the
release relay is situated towards the
bottom (see schematic).
• Installation according to
EN12186 recommended.
• Install according to direction of uid
ow (arrow).
• When assembling with adjacent elements
care must be taken not to create pressure
force on the body and the assembling
elements (bolts, O-rings, anges) should be
compatible with the geometry and working
conditions of the equipment.
All interventions on the equipment should only be performed by qualied and trained personnel.
Figure 7. Type EZR Installation Congurations
WARNING WARNING

! !
B18B
Type EZR
8
Europe, Middle East and Africa Only
• If the case arises a support must be used to
avoid pressure force on the body (a support
can be installed under the anges).
• Version with integral slam shut , connect the
safety manometric box (IS) to the impulse at
4D on a straight run of the outlet pipe.
• It is recommended to separate the slam
shut impulse line (IS) from that of the pilot
(IP). Do not connect the impulses on the
lower generator line.
• It is recommended to install an isolation
valve and an atmospheric valve, which
can be useful for slam shut tripping
and verications.
• No modication should be made to the
structure of the equipment (drilling,
grinding, soldering...).
• It is recommended to install a servicing valve
on the outlet pipeline to facilitate adjustments
and bleeding o󰀨 to the atmosphere.
• Verify that the inlet side is protected by an
appropriate device(s) to avoid exceeding
the limits of utilization (PS, TS).
• Verify that the limits of utilization
correspond to the appropriate operating
conditions.
• Version with integral slam shut, verify
that the safety manometric box (BMS)
and spring correspond to the appropriate
operating conditions on the outlet side of
the regulator.
• The equipment should not receive any type
of shock, especially the release relay.
• The user should verify or carry out a
protection adapted to the environment.
• Fire, seismic and lightening are not taken
into consideration in standard regulators.
If required, a special product selection and/
or specic calculations may be supplied
according to specic requirements.
• Version without integral slam shut, verify
that a pressure limiting device on the outlet
side of the regulator guarantees a pressure
limit inferior or equal to the pilot PS.
WARNING WARNING
Figure 8. Type EZR-OS2 Regulator
INLET PRESSURE (Pu)
MOTORIZATION PRESSURE (Pm)
OUTLET PRESSURE (Pd)
ATMOSPHERIC PRESSURE (Pb)
OPTIONAL

Triggered
position
B20
Stages 2 and 3
Stage 1
Figure 9. Setpoint Verication Phase
Type EZR
9
Europe, Middle East and Africa Only
COMMISSIONING
Operations concerning the integral slam shut version are
in italic.
All interventions on equipment should only be
performed by qualied personnel
Preliminary Verications
Start-up positions
• Inlet and outlet valves
Closed
Verify the absence of pressure between inlet and
outlet valves
• Slam shut valve plug
Closed
• Pilot A
Unloaded
• Restriction B
START position
Slam shut set point verication
Using the atmospheric valve, inject a pressure equal to the
pressure required for the regulator
• 1st release relay stage
Set (Stage 1)
• Slam shut valve plug
Open (Stages 2 and 3)
Progressively increase the pressure to
reach tripping
 Adjust setting if necessary (D103683X012_OS2_IM)
Note the set point value on the equipment
or mark it on a commissioning document
Positions before commissioning
• Impulse line isolating valve
Open
• Impulse line atmospheric valve
Closed
•Slam shut valve plug
Closed
• Servicing valve
Closed
The equipment is ready for commissioning
Commissioning (Act slowly)
• Inlet valve
Open very slowly
• 1st release relay stage
Set (Stage 1)
• Slam shut valve plug
Bypass (Stage 2)
Open (Stage 3)
• Servicing valve
Open slightly
• Pilot
Screw to set outlet pressure
• Outlet valve
Open slowly
• Restriction
 Set to "RUN" by successive fractions 2, 4 or 6
• Servicing valve
Closed
The equipment is commissioned
It is recommended to seal the release relay

If the outlet pressure increasesInternal leak
Control the regulator valve plug
Control the regulator
Control the pilot or contact after-sales
If the outlet pressure decreases External leak
Locate and seal the leak or contact after-sales
If the outlet pressure is constant The regulator is tightshut
Increase the set point until tripping occurs
(without exceeding the outlet limits)
If the slam shut valve plug will not close Operating fault
Control the release relay
Control the slam shut valve plug or contact after-sales
If the slam shut valve plug closes Operating correctly
Observe the evolution of the outlet pressure (control tightness)
Observe the evolution of the outlet pressure (control tightness)
If the outlet pressure is constant
Purge the outlet side of the regulator
If the outlet pressure increases Internal leak
Control the slam shut valve plug
Control the slam shut
Control the bypass or contact after-sales
If the outlet pressure is constant Slam shut valve plug is tightshut
Type EZR
10
Europe, Middle East and Africa Only
MAINTENANCE
Operations concerning the integral slam shut version are
in italic.
Servicing Check
Recommended frequency:
• Twice yearly minimum
Verication:
• Set point verication
• Regulator valve plug tightness
• Tripping and set point value
• Slam shut valve tightness
Departure positions
• Inlet valve Open
• Outlet valve Open
• Slam shut valve plug Open
• Regulator In operation
Inlet and outlet sides of regulator under pressure
Tightshut verication (and tripping verication for
integral slam shut versions)
• Inlet valve Closed
• Outlet valve Closed
• Regulator Observe the evolution of the outlet
pressure (control regulator tightness)
Table 11. Troubleshooting for Types EZR and EZR-OS2 Regulators
Filter verication
• Purge the lter C
• Verify the lter element