Emerson Fisher EZR Relief User manual

Introduction
This installation guide provides instructions for installation,
startup and adjustment. To receive a copy of the
instruction manual, contact your local Sales Ofce or view
a copy at www.sher.com. For further information refer to:
Type EZR Relief Instruction Manual, D102629X012.
P.E.D. Categories
This product may be used as a pressure accessory with
pressure equipment in the following Pressure Equipment
Directive categories. It may also be used outside of the
Pressure Equipment Directive using sound engineering
practice (SEP) per table below. For information on the
current PED revision see Bulletin: D103053X012.
PRODUCT SIZE CATEGORIES FLUID GROUP
DN 25, 50, 80, 100 and 150 /
NPS 1, 2, 3, 4 and 6 III 1
Specications
Main Valve Body Size, End Connection Styles
and Body Ratings(1)
See Table 1
Maximum Relief (Inlet) Pressure(1)
See Tables 2 and 5
Minimum Relief Set Pressure(1)
1.4 bar / 20 psig
Set Pressure Control Ranges
See Table 2
Temperature Capabilities(1)
See Table 4
Installation
!
WARNING
Only qualied personnel should install
or service a backpressure regulator.
Backpressure regulator should be
installed, operated and maintained
in accordance with international and
applicable codes and regulations
and Emerson Process Management
Regulator Technologies,
Inc. instructions.
1. The pressure/temperature limits in this installation guide and any applicable standard or code limitation should not be exceeded.
If using a backpressure regulator on a
hazardous or ammable uid service,
personal injury and property damage
could occur due to re or explosion of
vented uid that may have accumulated.
To prevent such injury or damage,
provide piping or tubing to vent the
uid to a safe, well-ventilated area or
containment vessel. Also, when venting
a hazardous uid, the piping or tubing
should be located far enough away
from any buildings or windows so to
not create a further hazard, and the vent
opening should be protected against
anything that could clog it.
Personal injury, equipment damage
or leakage due to escaping uid or
bursting of pressure-containing parts
may result if this backpressure regulator
is overpressured or is installed where
service conditions could exceed the limits
given in the Specications section, or
where conditions exceed any ratings of
the adjacent piping or piping connections.
To avoid such injury or damage, provide
pressure-relieving 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
backpressure regulator could result in
personal injury and property damage due
to escaping uid. To avoid such injury and
damage, install the backpressure regulator
in a safe location.
Clean out all pipelines before installation of the
backpressure regulator and check to be sure the
backpressure regulator has not been damaged or has
collected foreign material during shipping. For NPT
bodies, apply pipe compound to the external pipe
threads. For anged bodies, use suitable line gaskets
and approved piping and bolting practices. Install the
backpressure regulator in any position desired, unless
otherwise specied, but be sure ow through the body
is in the direction indicated by the arrow on the body.
Type EZR Relief
Installation Guide
D102629X014
English – October 2015

Table 1. Main Valve Body Sizes, End Connection Styles and Structural Design Ratings
Note
It is important that the backpressure
regulator be installed so that the vent
hole in the spring case is unobstructed
at all times. For outdoor installations,
the backpressure regulator should be
located away from vehicular tra󰀩c and
positioned so that water, ice and other
foreign materials cannot enter the spring
case through the vent. Avoid placing the
backpressure regulator beneath eaves
or downspouts, and be sure it is above
the probable snow level.
CAUTION
When installing Type EZR trim in an
existing Fisher™ E-body, damage
can result if ow is not in the correct
direction. Look at the body web to
conrm that ow is in the correct
direction—up through the center of
the cage and down through the cage
slots. Change the existing ow arrow
if necessary.
Overpressure Protection
Maximum inlet pressures depend upon body materials
and temperatures. Refer to the nameplate for the
maximum inlet pressure of the valve. The valve should
be inspected for damage after any overpressure
condition. Fisher backpressure regulators are NOT
ASME safety relief valves.
Startup
The backpressure 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 (if applicable).
MAIN VALVE BODY SIZE
MAIN VALVE BODY MATERIAL END CONNECTION STYLE
STRUCTURAL DESIGN RATING
DN NPS bar psig
50, 80, 100
and 150 2, 3, 4 and 6 Cast Iron
NPT (NPS 2 / DN 50 only) 27.6 400
CL125 FF 13.8 200
CL250 FF 34.5 500
25, 50, 80, 100
and 150 1, 2, 3, 4 and 6 WCC Steel
NPT or SWE (NPS 1 and 2 / DN 25 and 50 only) 102 1480
CL150 RF 19.7 285
CL300 RF 51.0 740
CL600 RF or BWE 102 1480
200 8 LCC Steel
CL150 RF 19.7 285
CL300 RF 51.0 740
CL600 RF 102 1480
PILOT TYPE
RELIEF SET PRESSURE RANGE
PILOT CONTROL INFORMATION
Maximum Operating Pressure Maximum Emergency Pressure
bar psig bar psig bar psig
6358 and 6358B 1.4 to 2.8
2.4 to 8.6
20 to 40
35 to 125 10.3 150 10.3 150
6358EB
5.2 to 9.7
9.0 to 13.8
12.4 to 24.1
75 to 140
130 to 200
180 to 350 44.8 650 51.7 750
6358EBH 17.3 to 31.0
27.6 to 41.4(2)
250 to 450
400 to 600
PRX/182
2 to 8
5 to 20
15 to 42
29 to 116
73 to 290
217 to 609
12.0 609 102 1480
PRX/182-AP 30 to 80 435 to 1160 80.0 1160 102 1480
1. See the Main Valve Body Sizes, End Connections, Structural Design Ratings tables and the Main Valve Diaphragm and Spring Pressure Ratings table for additional pressure ratings.
2. Fluorocarbon (FKM) diaphragms are limited to 31.0 bar / 450 psig.
Table 2. Set Pressure Ranges, Pilot Pressure Ratings and Pilot Information(1)
Type EZR Relief
2

Table 3. Main Valve Minimum Dierential Pressures(1)
17E68 NITRILE (NBR) 17E97(1) NITRILE (NBR) 17E88 FLUOROCARBON (FKM)
-28 to 66°C / -20 to 150°F -17 to 66°C / 0 to 150°F -17 to 121°C / 0 to 250°F(2)
1. The DN 150 / NPS 6, 17E97 diaphragm will perform in gas temperatures as low as -29°C / -20°F.
2. For differential pressures above 27.6 bar / 400 psig diaphragm temperature is limited to 66°C / 150°F.
Table 4. Temperature Capabilities
MAIN VALVE
BODY SIZE MAIN SPRING PART
NUMBER AND
COLOR CODE
DIAPHRAGM
MATERIAL
MINIMUM DIFFERENTIAL, PERCENT OF CAGE CAPACITY
FOR 90% CAPACITY FOR 100% CAPACITY
100% Trim 60% Trim 30% Trim 100% Trim 60% Trim 30% Trim
DN NPS bar psi bar psi bar psi bar psi bar psi bar psi
25 1
19B2400X012, Light Blue 17E68 and 17E88 1.7 24 2.0 29 2.2 31 1.7 24 2.2 31 2.8 40
GE12727X012, Black 17E97 2.5 35 2.7 38 2.9 42 2.5 35 2.7 39 3.6 52
17E68 and 17E88 2.1 30 2.4 35 2.7 39 2.1 30 2.5 36 3.6 52
19B2401X012,
Black with White Stripe(3) 17E88 and 17E97 3.0 43 3.4 50 3.9 56 3.0 43 3.7 53 4.7 68
50 2
19B0951X012, Yellow(2) 17E68 and 17E88 0.83 12 1.0 15 1.0 15 0.83 12 1.7 25 1.4 20
18B2126X012, Green 17E97 1.7 24 1.7 25 1.8 26 1.7 24 2.1 30 2.6 37
17E68 and 17E88 1.2 18 1.4 20 1.5 22 1.3 19 1.8 26 1.9 28
18B5955X012, Red(3)
GE05504X012, Purple(3) 17E88 and 17E97 2.0 29 2.0 29 2.1 31 2.1 31 2.4 35 3.03 43
80 3
T14184T0012, Yellow(2) 17E68 and 17E88 1.1 16 1.3 19 1.7 24 1.6 23 1.6 23 2.0 29
19B0781X012, Light Blue 17E97 1.6 23 1.6 23 1.6 23 1.6 23 1.6 23 1.7 25
17E68 and 17E88 1.5 21 1.5 22 1.9 28 1.9 28 1.9 28 2.3 33
19B0782X012, Black(3) 17E88 and 17E97 2.2 32 2.3 33 3.0 43 2.6 38 2.6 38 3.4 50
100 4
T14184T0012, Yellow(2) 17E68 and 17E88 0.69 10 0.83 12 0.97 14 1.7 25 1.7 25 1.7 25
18B8501X012, Green 17E97 1.1 16 1.2 17 1.5 21 2.3 34 2.3 34 2.3 34
17E68 and 17E88 1.1 16 1.2 17 1.4 20 2.1 30 2.1 30 2.1 30
18B8502X012, Red(3) 17E88 and 17E97 1.5 21 1.7 24 1.8 26 2.8 40 2.8 40 2.8 40
150 6
19B0364X012, Yellow(2) 17E97 0.69 10 0.76 11 0.97 14 0.83 12 1.1 16 1.1 16
17E88 0.69 10 0.90 13 0.90 13 0.83 12 1.5 21 1.5 21
19B0366X012, Green 17E97 0.97 14 1.5 22 1.5 22 1.3 19 2.0 29 2.0 29
17E88 1.2 17 1.5 21 1.5 21 1.4 20 2.5 36 2.5 36
19B0365X012, Red(3) 17E88 and 17E97 1.6 23 2.0 29 2.0 29 2.1 30 2.8 41 2.8 41
200 8
GE09393X012, Yellow(2)
17E97
1.1 16
- - - - - - - -
1.3 19
- - - - - - - -GE09396X012, Green 1.4 20 1.6 23
GE09397X012, Red(3) 1.8 26 2.1 30
1. See Table 1 for structural design ratings, Table 3 for pilot ratings and Table 6 for maximum pressure ratings.
2. The white and yellow springs are only recommended for inlet pressures under 6.9 bar / 100 psig.
3. The red, black, purple, red stripe and black with white stripe springs are only recommended for applications where the maximum inlet pressure can exceed 34.5 bar / 500 psig.
Adjustment
To change the set pressure, remove closing cap
or loosen the locknut and turn the adjusting screw
clockwise to increase set pressure or counterclockwise
to decrease pressure. Monitor the set pressure with a
test gauge during the adjustment. Replace closing cap
or tighten the locknut to maintain the desired setting.
Taking Out of Service (Shutdown)
!
WARNING
To avoid personal injury resulting from
sudden release of pressure, isolate the
backpressure regulator from all pressure
before attempting disassembly.
If pressure is introduced rst to the
main valve before the pilot, the main
valve may go wide-open and subject the
downstream system to full inlet pressure.
Type EZR Relief
3

Table 5. Main Valve Maximum Pressure Ratings
BODY SIZE DIAPHRAGM
MATERIAL
MAXIMUM
OPERATING INLET
PRESSURE(4)
MAXIMUM
OPERATING
DIFFERENTIAL
PRESSURE(4)
MAXIMUM
EMERGENCY
INLET AND
DIFFERENTIAL
PRESSURE
MAIN SPRING
COLOR CODE
DIAPHRAGM
DESIGNATION
DN NPS bar psig bar d psid bar d psid
25 1
17E68 Nitrile (NBR)
Low temperature
6.9 100 6.9 100 6.9 100 Light Blue
130
31.7 460 27.6 400 31.7 460 Black
17E97 Nitrile (NBR)
High pressure and/or
erosion resistance
34.5 500 34.5 500 72.4 1050 Black
72.4 1050 55.2 800 72.4 1050 Black with
White Stripe(2)
17E88 Fluorocarbon (FKM)
High aromatic hydrocarbon
content resistance
6.9 100 6.9 100 6.9 100 Light Blue
34.5 500 34.5(3) 500 51.7 750 Black
51.7 750 34.5(3) 500 51.7 750 Black with
White Stripe(2)
50 2
17E68 Nitrile (NBR)
Low temperature
6.9 100 6.9 100 6.9 100 Yellow
31.7 460 27.6 400 31.7 460 Green
17E97 Nitrile (NBR)
High pressure and/or
erosion resistance
34.5 500 34.5 500 72.4 1050 Green
72.4 1050 55.2 800 72.4 1050 Red(2) or Purple(2)
17E88 Fluorocarbon (FKM)
High aromatic hydrocarbon
content resistance
6.9 100 6.9 100 6.9 100 Yellow
34.5 500 34.5(3) 500 51.7 750 Green
51.7 750 34.5(3) 500 51.7 750 Red(2) or Purple(2)
80 3
17E68 Nitrile (NBR)
Low temperature
6.9 100 6.9 100 6.9 100 Yellow
24.8 360 20.7 300 34.5 500 Light Blue
17E97 Nitrile (NBR)
High-pressure and/or
erosion resistance
34.5 500 34.5 500 72.4 1050 Light Blue
72.4 1050 55.2 800 72.4 1050 Black(2)
17E88 Fluorocarbon (FKM)
High aromatic hydrocarbon
content resistance
6.9 100 6.9 100 6.9 100 Yellow
34.5 500 34.5(3) 500 51.7 750 Light Blue
51.7 750 34.5(3) 500 51.7 750 Black(2)
100 4
17E68 Nitrile (NBR)
Low temperature
6.9 100 6.9 100 6.9 100 Yellow
24.8 360 20.7 300 34.5 500 Green
17E97 Nitrile (NBR)
High pressure and/or
erosion resistance
34.5 500 34.5 500 72.4 1050 Green
72.4 1050 55.2 800 72.4 1050 Red(2)
17E88 Fluorocarbon (FKM)
High aromatic hydrocarbon
content resistance
6.9 100 6.9 100 6.9 100 Yellow
34.5 500 34.5(3) 500 51.7 750 Green
51.7 750 34.5(3) 500 51.7 750 Red(2)
150 6
17E97 Nitrile (NBR)
High pressure and/or
erosion resistance
6.9 100 6.9 100 6.9 100 Yellow
34.5 500 34.5 500 72.4 1050 Green
72.4 1050 55.2 800 72.4 1050 Red(2)
17E88 Fluorocarbon (FKM)
High aromatic hydrocarbon
content resistance
6.9 100 6.9 100 6.9 100 Yellow
34.5 500 34.5(3) 500 51.7 750 Green
51.7 750 34.5(3) 500 51.7 750 Red(2)
200 8
17E97 Nitrile (NBR)
High pressure and/or
erosion resistance
6.9 100 6.9 100 6.9 100 Yellow
34.5 500 34.5 500 72.4 1050 Green
72.4 1050 55.2 800 72.4 1050 Red(2)
1. See Table 1 for main valve structural design ratings and Table 3 for pilot ratings.
2. The red, black, purple, red stripe and black with white stripe springs are only recommended for applications where the maximum inlet pressure can exceed 34.5 bar / 500 psig.
3. For differential pressures above 27.6 bar d / 400 psid diaphragm temperatures are limited to 66°C / 150°F.
4. These are recommendations that provide the best regulator performance for a typical application. Please contact your local Sales Ofce for further information if a deviation from the standard
recommendations is required.
Type EZR Relief
4

Parts List
Type EZR Main Valve
Key Description
1 Valve Body
2 Bonnet Assembly
3 Cap Screw
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 or Indicator Plug
20 Indicator Washer
21 Indicator Cover
22 Indicator Protector
23 Inlet Strainer or Strainer Replacement Shim
24 Nameplate
25 Flow Arrow
26 Drive Screw (5 required)
DN 200 / NPS 8 body (6 required)
28* O-ring
47 Nut (DN 200 / NPS 8 only)
63 Pilot Supply Pipe Plug
64 Bonnet Pipe Plug
70* O-ring
71 Restrictor Plate
72 E-ring, for Restricted Trim
DN 25 to 100 / NPS 1 to 4 bodies
79 Washer (DN 150 / NPS 6 body only)
83 Machine Screw (DN 50 / NPS 2 only)
121* O-ring DN 150 / NPS 6 body only
126 Cap Screw (DN 150 / NPS 6 body only)
129 Socket Head Screw (DN 25 / NPS 1 only)
130 Lock Washer (DN 25 / NPS 1 only)
133* O-ring, (DN 200 / NPS 8 only)
136 Stud, Steel (DN 200 / NPS 8 only)
137 Lower Spring Seat (DN 200 / NPS 8 only)
140 Bushing (DN 150 and 200 / NPS 6 and 8 only)
6358 Series Pilots
Key Description
1 Pilot Body
2 Spring Case
3 Body Plug
4* Valve Plug
5* Diaphragm Assembly
6 Connector Cap
7 Control Spring
8 Spring Seat
9 Stem Guide
10 Adjusting Screw
11 Locknut
12 Closing Cap
13* Body Plug O-ring
14 Valve Spring
15* O-ring (Type 6358EBH only)
16 Vent Assembly, Type Y602X1-A12
17 Machine Screw
18* O-ring (Types 6358EB and 6358EBH)
19* Closing Cap Gasket (Types 6358 and 6358B)
20 Restriction or Restriction Plug
36* Connector Cap Gasket
37 Stem O-ring
38 Lower Spring Seat, Types 6358EB and 6358EBH
40 Diaphragm Limiter for Type 6358EB at 12.4 to 24.1 bar /
180 to 350 psig
PRX Series Pilots
Key Description
1 Adjusting Screw
2 Locknut
3 Cap
4* Spring Case O-ring
5* O-ring
6 Upper Spring Seat
7 Spring
8 Spring Case
9 Lower Spring Seat
10 Machine Screw
11 Washer
12 Filter
13 Diaphragm Plate
14* Diaphragm
15 Diaphragm Plate
16 Body
17* Orice O-ring
18* Lower Cover O-ring
19 Seat
20 Nut
21 Lower Cover
22* Disk Holder
23 Stem
24 Nameplate
25* Stem O-ring
26 Upper Diaphragm Nut
28* Restrictor/Damper O-ring,
29 Nameplate
31 Nameplate Screw
33 Restrictor Plug
34 Pipe Plug
35 Spring Barrel Extension for AP
*Recommended Spare Part
Type EZR Relief
5

MAIN VALVE ASSEMBLY FOR DN 25, 50, 80 AND 100 / NPS 1, 2, 3 AND 4 BODY SIZES
B2617_2
Figure 1. Type EZR Main Valve with Travel Indicator
TOP PLUG (KEY 5)
O-RING (KEY 14)
DN 25 / NPS 1
DIAPHRAGM ASSEMBLY
O-RING (KEY 70)
DIAPHRAGM (KEY 9)
BOTTOM PLUG (KEY 11)
O-RING (KEY 10)
LOCK WASHER (KEY 130)
SOCKET HEAD SCREW (KEY 129)
19B2408
8
7
5
11
10
70
14
2
17
19
20
21 22
15
4
6
18
16
64
12
28
9
13
1
23
Type EZR Relief
6

Figure 3. Types 6358 and 6358EB Pilots
DETAIL OF TYPE 6358EB PILOT DIAPHRAGM LIMITER FOR
12.4 TO 24.1 bar / 180 TO 350 psig SET PRESSURE RANGE INTERIOR VIEW
A6920-2
Figure 2. Type EZR Travel Indicator Plug Option
19
3
48B2142_C
3
DN 25, 50, 80 AND 100 / NPS 1, 2, 3 AND 4 BODY SIZES DN 150 / NPS 6 BODY SIZE
6358 SERIES PILOT INTERIOR VIEW
A6920
TYPE 6358EB PILOT INTERIOR VIEW
B2620-2
10 12
11
2
6
14
20
16
4
1
13
8
18
5
38
9
36
37
16
3
7
12
10
19
8
6
5
14
9
37
3
13
1
4
20
16
36
7
2
11
Type EZR Relief
7

A
A
L
B
S
28 31 29
28
34
34
22
19
14
17
16
18
1413
1
2
3
4
5
6
7
8
9
10
11
12
B
13
15
11
20
10
11
21
25
23
24
18
11
26
35
4
4
A
A
L
B
S
28 31 29
28
34
34
22
19
14
17
16
18
1413
1
2
3
4
5
6
7
8
9
10
11
12
B
13
15
11
20
10
11
21
25
23
24
18
11
26
35
4
4
A
A
L
B
S
28 31 29
28
34
34
22
19
14
17
16
18
1413
1
2
3
4
5
6
7
8
9
10
11
12
B
13
15
11
20
10
11
21
25
23
24
18
11
26
35
4
4
Figure 4. Type PRX/182 Pilot Schematics
Type EZR Relief
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Emerson Automation Solutions
For further information on the current
PED revision see Bulletin: D103053X012
or scan the QR code.
Fisher.com
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McKinney, Texas 75070 USA
T [phone]
[phone]
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T [phone]
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T [phone]
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Dubai, United Arab Emirates
T [phone]
D102629X014 © 2002, 2018 Emerson Process Management Regulator
Technologies, Inc. All rights reserved. 06/18.
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Electric Co. All other marks are the property of their prospective owners.
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not to be construed as warranties or guarantees, express or implied,
regarding the products or services described herein or their use or
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are available on request. We reserve the right to modify or improve the
designs or specications of our products at any time without notice.
Emerson Process Management Regulator Technologies, Inc does not
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product. Responsibility for proper selection, use and maintenance of any
Emerson Process Management Regulator Technologies, Inc. product
remains solely with the purchaser.