Instruction Manual

D102600X012

May 2017

Type EZR Pressure Reducing Regulator

Type EZR

161AY SERIES PILOT

TYPE PRX PILOT

!

WARNING

Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion and/or fire 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.

(Emerson) 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 qualified person must install or service the regulator.

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,

Types 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.

2

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 and Structural Design Ratings

See Table 1

(1)(2)

Maximum Inlet Pressures and Pressure Drops (1)

Main Valve: See Table 10

Pilots: See Table 3

Restrictor: 1500 psig / 103 bar

Outlet (Control) Pressure Ranges

See Table 2

Main Valve Plug Travel

NPS 1, 1-1/4 x 1, 2 x 1 /

DN 25, 32 x 25, 50 x 25: 0.37 in. / 9.4 mm

NPS 2 / DN 50: 0.68 in. / 17 mm

NPS 3 / DN 80: 0.98 in. / 25 mm

NPS 4 / DN 100: 1.19 in. / 30 mm

NPS 6 / DN 150: 1.5 in. / 38 mm

NPS 8 / DN 200: 1.75 in. / 44 mm

Minimum and Maximum Differential Pressures (1)

See Tables 4 and 10

Proportional Bands

See Table 2

Temperature Capabilities (1)

See Table 8

Pressure Registration

External

Options

  •  Integral Slam-Shut Device

  •  Pre-piped Pilot Supply and Pilot Bleed

  •  Travel Indicator

  •  Inlet Strainer

  •  Type 252 Pilot Supply Filter

  •  Trim Package

  •  Restricted Capacity Trim

  •  Pilot Diaphragm for Pressure Loading

1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.

2. End connections for other than ASME standard can usually be provided, contact your local Sales Office for assistance.

Pilot Type Descriptions

Type 161AY—Low-pressure pilot with an outlet  pressure range of 6 in. w.c. to 7 psig / 15 mbar to

0.48 bar. 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 of 5 to 350 psig / 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 PRX/120—Outlet pressure range of 14.5 to

435 psig / 1.00 to 30.0 bar. The Type PRX/120 can be used as the pilot on single-stage pressure reducing regulators or as the monitor pilot or working pilot in  wide-open monitor systems. The Type PRX has a double diaphragm which provides increased accuracy and sensitivity, an integral restrictor adjustment which allows adjustable opening and closing speeds and a damper adjustment which adjusts inlet pressure variability and loading pressure oscillations.

Type PRX/120-AP—Outlet pressure range of 435 to

1000 psig / 30.0 to 69.0 bar. The Type PRX/120-AP can be used as the pilot on single-stage pressure reducing regulators, as the monitor pilot or working  pilot in wide-open monitor systems or as the working  pilot for monitoring and working regulators in the  working monitoring 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.

Note

For applications requiring extremely tight control, using a Type 161AYM or

161EBM monitor pilot will increase the accuracy of the regulator.

Type EZR

Table 1. Main Valve Body Sizes, End Connection Styles and Body Ratings

MAIN VALVE BODY SIZE, NPS / DN

2 x 1, 2, 3, 4 and 6 /

50 x 25, 50, 80, 100 and 150

MAIN VALVE BODY MATERIAL

Cast iron

END CONNECTION STYLE (1)

NPT (NPS 2 x 1 and 2 / DN 50 x 25 and 50 only)

CL125 FF

CL250 RF

NPT or SWE (NPS 1, 2 x 1 and 2 /

DN 25, 50 x 25 and 50 only)

STRUCTURAL DESIGN

RATING (2)

400 psig / 27.6 bar

200 psig / 13.8 bar

500 psig / 34.5 bar

6 x 4 (4)

1, 1-1/4 x 1

, 8 x 4 (4)

(3) , 2 x 1, 2, 3, 4,

, 6, 8 x 6 (4) and 12 x 6 (4) /

25, 32 x 25, 50 x 25, 50, 80,

100,150 x 100, 200 x 100, 150,

200 x 150 and 300 x 150

8 / 200

WCC Steel

LCC Steel

CL150 RF

CL300 RF

CL600 RF or BWE 

CL150 RF

CL300 RF

CL600 RF

1500 psig / 103 bar

290 psig / 20.0 bar

750 psig / 51.7 bar

1500 psig / 103 bar

290 psig / 20.0 bar

750 psig / 51.7 bar

1500 psig / 103 bar

1. Ratings and end connections for other than ASME standard can usually be provided. Contact your local Sales Office for assistance.

2. See Tables 3, 8, 10 and 11 for diaphragm materials and additional pressure ratings.

3. Available in steel NPT only.

4. NPS 6 x 4, 8 x 4, 8 x 6, 12 x 6 / DN 150 x 100, 200 x 100, 200 x 150, 300 x 150 Types EZR and 399 bodies are not the same as the EW valve bodies and are not interchangeable.

Table 2. Outlet (Control) Pressure Ranges, Proportional Bands and Pilot Control Spring Information

TYPE

161AY or

161AYM

161EB or

161EBM

OUTLET (CONTROL)

PRESSURE RANGE psig

6 to 15 in. w.c.

0.5 to 1.2

1.2 to 2.5

2.5 to 4.5

4.5 to 7

5 to 15

10 to 40

30 to 75

70 to 140

130 to 200

200 to 350

30 to 300 bar

15 to 37

34 to 83

83 mbar to 0.17 bar

0.17 to 0.31

0.31 to 0.48

0.34 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

2.1 to 20.7

PROPORTIONAL BAND psig

1 in. w.c.

1 in. w.c.

0.5

0.5

0.5

0.5

0.5

0.6

1.3

1.5

3

6

(1)(3) bar

3 mbar

3 mbar

34 mbar

(2)

(2)

(2)

34 mbar (2)

34 mbar (2)

34 mbar

34 mbar

41 mbar

90 mbar

0.10

0.21

(2)

(2)

(2)

(2)

(2)

(2)

0.41

PILOT CONTROL SPRING INFORMATION

Part Number Color Code

Wire Diameter Free Length

1B653927022

1B537027052

1B537127022

1B537227022

1B537327052

17B1260X012

17B1262X012

17B1259X012

17B1261X012

17B1263X012

17B1264X012

15A9258X012

Olive drab

Yellow

Light green

Light blue

Black

White

Yellow

Black

Green

Blue

Red

Green

In.

0.105

0.114

0.156

0.187

0.218

0.120

0.148

0.187

0.225

0.262

0.294

mm

0.243

6.17

2.67

2.90

3.96

4.75

5.54

3.05

3.76

4.75

5.71

6.65

7.47

In.

3.75

4.31

4.13

3.94

4.13

3.75

3.75

4.00

3.70

3.85

4.22

1.88

mm

95.2

109

105

100

105

95.2

95.2

102

94.0

97.8

107

47.7

161EB (4)

TYPE

PRX/120

PRX/125

OUTLET (CONTROL)

PRESSURE RANGE psig

14.5 to 26

23 to 44

41 to 80

73 to 123

116 to 210

203 to 334

319 to 435 bar

1.00 to 1.8

1.6 to 3.0

2.8 to 5.5

5.0 to 8.5

8.0 to 14.5

14.0 to 23.0

22.0 to 30.0

ACCURACY CLASS (AC)

2.5%

2.5%

2.5%

2.5%

1%

1%

1%

(1)

PILOT CONTROL SPRING INFORMATION

Part Number

M0255240X12

M0255230X12

M0255180X12

M0255220X12

M0255210X12

M0255200X12

M0255860X12

Color Code

Yellow

Green

Blue

Black

Silver

Gold

Aluminum

Wire Diameter

In.

0.110

0.126

0.138

0.157

0.177

0.197

0.236

mm

2.79

3.20

3.50

3.99

4.50

5.00

5.99

Free Length

In.

2.16

2.16

2.00

2.00

mm

54.9

54.9

50.8

50.8

PRX/120-AP

PRX/125-AP

435 to 1000 30.0 to 69.0

1% M0273790X12 Clear 0.335

8.51

3.93

1. Proportional band and Accuracy Class include outlet pressure drop plus hysteresis (friction), but do not include lockup.

2. Proportional band was determined with a pressure drop ranging from 50 to 150 psig / 3.5 to 10.3 bar. Approximately double the proportional band if the pressure drop is less than

50 psig / 3.5 bar.

3. With Type 112 restrictor set on 2. With Type PRX restrictor turn the restrictor screw one turn counterclockwise from fully seated.

4. Should only be used as the intermediate reduction pilot on the Type EZR worker/monitor systems.

99.8

Table 3. Pilot Pressure Ratings

TYPE

161AY

161EB

161AYM

161EBM

PRX Series

MAXIMUM INLET PRESSURE psig

150

1500

150

1500

1480 bar

10.3

103

10.3

103

102

MAXIMUM EMERGENCY OUTLET

PRESSURE OR MAXIMUM EMERGENCY

SENSE PRESSURE (1) psig bar

150

1200

150

1200

1480

10.3

82.7

10.3

82.7

102

MAXIMUM BLEED (EXHAUST) PRESSURE

FOR MONITOR PILOTS psig

150

1500

1480

1. Maximum pressure to prevent the casings from bursting during abnormal operation (leaking to atmosphere and internal parts damage may occur).

- - - bar

10.3

103

102

3

4

Type EZR

Table 4. Main Valve Minimum Differential Pressures (1)

MAIN VALVE

BODY SIZE,

NPS / DN

1 and 1-1/4 x 1 /

25 and 32 x 25

MAIN SPRING PART

NUMBER AND

COLOR CODE

19B2400X012, Light Blue

GE12727X012, Black

DIAPHRAGM

MATERIAL

17E68 and 17E88

17E97

17E68 and 17E88

MINIMUM DIFFERENTIAL, PERCENT OF CAGE CAPACITY

FOR 90% CAPACITY FOR 100% CAPACITY

100% Trim 60% Trim 30% Trim 100% Trim 60% Trim 30% Trim psi bar

24 1.7

psi bar

29 2.0

psi bar

31 2.2

psi bar

24 1.7

psi bar

31 2.2

psi bar

40 2.8

35

30

2.5

2.1

38

35

2.7

2.4

42

39

2.9

2.7

35

30

2.5

2.1

39

36

2.7

2.5

52

52

3.6

3.6

2 x 1 / 50 x 25

19B2401X012,

Black with White Stripe (3)

19B2400X012, Light Blue

19B2401X012,

Black with White Stripe

17E88 and 17E97

17E68 and 17E88

17E97

17E68 and 17E88

43

24

43

43

3.0

1.7

3.0

3.0

50

29

50

50

3.4

2.0

3.4

3.4

56

31

56

56

3.9

2.2

3.9

3.9

43

24

43

43

3.0

1.7

3.0

3.0

53

31

53

53

3.7

2.2

3.7

3.7

68

40

68

68

4.7

2.8

4.7

4.7

2 / 50

GE12501X012,

Red Stripe (3)

19B0951X012, Yellow (2)

18B2126X012, Green

17E97

17E68 and 17E88

17E97

17E68 and 17E88

68 4.7

12 0.83

24

18

1.7

1.2

73

15

25

20

5.0

1.0

1.7

1.4

88

15

26

22

6.1

1.0

1.8

1.5

72

12

24

19

5.0

0.83

1.7

1.3

81

25

30

26

5.6

1.7

2.1

1.8

102

20

37

28

7.0

1.4

2.6

1.9

3 / 80

18B5955X012, Red (3)(4)

GE05504X012, Purple (3)(4)

T14184T0012, Yellow (2)

19B0781X012, Light Blue

17E88 and 17E97

17E68 and 17E88

17E97

17E68 and 17E88

29

16

23

21

2.0

1.1

1.6

1.5

29

19

23

22

2.0

1.3

1.6

1.5

31

24

23

28

2.1

1.7

1.6

1.9

31

23

23

28

2.1

1.6

1.6

1.9

35

23

23

28

2.4

1.6

1.6

1.9

43

29

25

33

3.03

2.0

1.7

2.3

4, 6 x 4 and, 8 x 4 /

100, 150 x 100 and 200 x 100

19B0782X012, Black (3)

T14184T0012, Yellow (2)

18B8501X012, Green

18B8502X012, Red (3)

17E88 and 17E97

17E68 and 17E88

17E97

17E68 and 17E88

17E88 and 17E97

17E97

32

16

2.2

10 0.69

1.1

16 1.1

21 1.5

10 0.69

33

12

17

2.3

0.83

1.2

17 1.2

24 1.7

11 0.76

10 0.69

13 0.90

14 0.97

22 1.5

17

23

16

1.2

1.6

1.1

21 1.5

29 2.0

43

14

21

20

26

14

3.0

0.97

1.5

1.4

1.8

0.97

38

25

34

30

40

12

12

19

20

2.6

1.7

2.3

2.1

2.8

0.83

0.83

1.3

1.4

2.1

1.3

1.6

38

25

34

2.6

1.7

2.3

30 2.1

40 2.8

16 1.1

50

25

34

30

40

16

3.4

1.7

2.3

2.1

2.8

1.1

6, 8 x 6 and

12 x 6 /

150, 200 x 150 and 300 x 150

8 / 200

19B0364X012, Yellow (2)

19B0366X012, Green

19B0365X012, Red (3)

GE09393X012, Yellow

GE09396X012, Green

(2)

17E88

17E97

17E88

17E88 and 17E97

17E97 20 1.4

- - - -

13

22

21

29

- - - -

0.90

1.5

1.5

2.0

30

19

23

21

29

36

41

- - - -

1.5

2.0

2.5

2.8

21

29

36

41

GE09397X012, Red (3) 26 1.8

30 2.1

1. See Table 1 for structural design ratings, Table 3 for pilot ratings and Table 10 for maximum pressure ratings.

2. The white and yellow springs are only recommended for inlet pressures under 100 psig / 6.9 bar.

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 500 psig / 34.5 bar.

4. 18B5955X012 (Red) is used on constructions with travel indicator while GE05504X012 (Purple) is used on non-travel indicator constructions.

- - - -

1.5

2.0

2.5

2.8

Principle of Operation

As long as the outlet (control) pressure is above the outlet pressure setting, the pilot valve plug or disk  remains closed (Figure 2). Force from the main spring, in addition to inlet pressure bleeding through the

Type 112 restrictor (the restrictor is integral in the

PRX Series pilots), provides downward loading pressure to keep the main valve diaphragm and plug  assembly tightly shutoff.

When the outlet pressure decreases below the pilot outlet pressure setting, the pilot plug or disk assembly  opens. Loading pressure bleeds downstream through  the pilot faster than it can be replaced through the

Type 112 restrictor. This reduces loading pressure on top of the main valve diaphragm and plug assembly.

The force imbalance on the diaphragm allows the inlet pressure to overcome the loading pressure and main spring force and open the Type EZR diaphragm and plug assembly.

As the outlet pressure rises toward the outlet pressure setting, it compresses the pilot diaphragm against the pilot control spring and allows the pilot valve plug or disk close. Loading pressure begins building on the 

Type EZR diaphragm and plug assembly. The loading pressure, along with force from the main spring, pushes the diaphragm and plug assembly onto the tapered-edged seat, producing tight shutoff.

Type EZR

161EB SERIES PILOT

161AY SERIES PILOT

TYPE 112 RESTRICTOR

TYPE 252 PILOT

SUPPLY FILTER

FLOW DIRECTION

B2625_2

MAIN SPRING

DIAPHRAGM AND

PLUG ASSEMBLY

W7438_07/2008

TYPE EZR WITH TYPES 161EB PILOT, 112 RESTRICTOR AND 252 FILTER

TYPE 252 SUPPLY FILTER

TYPE PRX PILOT

RESTRICTOR

PORT S

DAMPER

PORT B

PORT L

PORT A

MAIN SPRING

DIAPHRAGM AND

PLUG ASSEMBLY

FLOW DIRECTION

E0790_09/2006

INLET PRESSURE

OUTLET PRESSURE

ATMOSPHERIC PRESSURE

LOADING PRESSURE

TYPE EZR WITH PRX SERIES PILOT AND TYPE 252 FILTER

Figure 2. Type EZR Operational Schematic

5

Type EZR

BLOCK VALVE BLOCK VALVE

INLET OUTLET

SUPPLY PRESSURE LINE

B2605_A

RESTRICTOR

CONTROL LINE

161 SERIES PILOT

161 SERIES SINGLE PILOT INSTALLATION WITH PILOT EXHAUST INTO CONTROL LINE

BLOCK VALVE BLOCK VALVE

HAND VALVE

ALTERNATE CONTROL LINE

6

INLET OUTLET

PILOT

EXHAUST

SUPPLY PRESSURE LINE

B2605_B

HAND VALVE

RESTRICTOR

161 SERIES

PILOT

CONTROL LINE

161 SERIES SINGLE PILOT INSTALLATION WITH SEPARATE PILOT EXHAUST LINE

BLOCK VALVE

BLOCK VALVE

ALTERNATE CONTROL LINE

INLET OUTLET

PILOT

EXHAUST

HAND VALVE

SUPPLY PRESSURE LINE TYPE PRX PILOT

ALTERNATE CONTROL LINE

CONTROL LINE

TYPE PRX SINGLE-PILOT INSTALLATION WITH SEPARATE PILOT EXHAUST LINE

Figure 3. Typical Type EZR Single Installation Schematics

Type EZR Installation

!

WARNING

Personal injury, equipment damage or leakage due to escaping gas 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 Specifications section on page 2 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 regulator could break the pilot off the main valve, causing personal injury and property damage due to escaping gas.

To avoid such injury and damage, install the regulator in a safe location.

Type EZR

All Installations

The robust design of the Type EZR allows this regulator to be installed indoors or outdoors. When installed outdoors, the Type EZR does not require protective housing. This regulator is designed to withstand the elements. The powder paint coating protects against minor impacts, abrasions and corrosion.

When installed indoors, no remote venting is required except on the pilot spring case. This regulator can also be installed in a pit that is subject to flooding  by venting the pilot spring case above the maximum possible flood level so the pilot setting can be  referenced at atmospheric pressure.

  1.  Only personnel qualified 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.

Note

The Type EZR optional inlet strainer is intended to prevent occasional large particles from entering the main valve.

If the gas contains continuous particles, upstream filtration is recommended.

When using an inlet strainer (key 23), do not use the shim (key 23) and vice versa.

2. Type EZR regulator may be installed in any orientation, as long as flow through the regulator  matches the direction of the arrow on the main valve body. However, for easier maintenance, install the regulator with the bonnet up.

CAUTION

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.

Types EZR/399 restricted trim bodies

(NPS 6 x 4, 8 x 4, 8 x 6 and 12 x 6 /

DN 150 x 100, 200 x 100, 200 x 150 and

300 x 150) are different than EW valve bodies and are not interchangeable.

Install trims only in correct restricted trim bodies.

3. The standard pilot mounting position is as shown in

Figure 1. Other mounting positions are available.

4. Apply a good grade of pipe compound to the external pipeline threads for a threaded body or use suitable line gaskets for a flanged body. When installing butt  weld end connections, remove trim before welding and make sure to use approved welding practices. 

Use approved piping procedures when installing the regulator.

CAUTION

A regulator may vent some gas to the atmosphere. In hazardous or flammable gas service, vented gas may accumulate and cause personal injury, death or property damage due to fire or explosion.

Vent a regulator in hazardous gas service to a remote, safe location away from air intakes or any hazardous location.

Protect the vent line or stack opening against condensation or clogging.

5. A clogged pilot spring case vent may cause the regulator to function improperly. To prevent plugging

(and to keep the spring case from collecting moisture,  corrosive chemicals or other foreign material) point the vent down, orient it to the lowest possible point on the spring case or otherwise protect it. Inspect the  vent regularly to make sure it has not been plugged. 

To remotely vent a spring case, remove the vent and install obstruction-free tubing or piping into the

1/4 NPT vent tapping. Provide protection on a remote vent by installing a screened vent cap onto the remote end of the vent pipe. The 161AY Series pilot has a vent restriction (key 55, Figure 20) to enhance low  flow stability. Do not remove this restriction.

!

WARNING

To avoid freeze-up because of pressure drop and moisture in the gas, use antifreeze practices, such as heating the supply gas or adding a de-icing agent to the supply gas.

7

8

Type EZR

BLOCK VALVE

INLET

UPSTREAM REGULATOR

DOWNSTREAM

REGULATOR

BLOCK VALVE

OUTLET

INLET

SUPPLY

PRESSURE LINE

RESTRICTOR

161 SERIES PILOT

BLOCK VALVE

SUPPLY

PRESSURE

LINE

RESTRICTOR 161 SERIES

PILOT

CONTROL LINE

161 SERIES WIDE-OPEN MONITORING SYSTEM INSTALLATION

UPSTREAM REGULATOR

DOWNSTREAM

REGULATOR

HAND VALVE

CONTROL

LINE

ALTERNATE

CONTROL LINE

HAND

VALVE

BLOCK VALVE

OUTLET

SUPPLY

PRESSURE LINE

RESTRICTOR

161 SERIES PILOT

SUPPLY

PRESSURE

LINE

PILOT

EXHAUST

RESTRICTOR 161 SERIES

PILOT

CONTROL

LINE

HAND VALVE

B2605_C

CONTROL LINE

ALTERNATE

CONTROL LINE

161 SERIES WIDE-OPEN MONITORING SYSTEM INSTALLATION WITH PILOT EXHAUST TO INTERMEDIATE PRESSURE

HAND

VALVE

BLOCK VALVE

MONITOR REGULATOR

WORKING

REGULATOR

BLOCK VALVE

INLET

OUTLET

SUPPLY

PRESSURE LINE

B2605_D

RESTRICTOR

161 SERIES

MONITOR PILOT

BLOCK VALVE

SUPPLY

PRESSURE

LINE

CONTROL LINE

161 SERIES WORKING PILOT

RESTRICTOR

CONTROL LINE

161 SERIES WORKING MONITORING SYSTEM INSTALLATION

UPSTREAM REGULATOR

DOWNSTREAM

REGULATOR

HAND VALVE

161 SERIES

PILOT

ALTERNATE

CONTROL LINE

BLOCK VALVE

HAND

VALVE

INLET OUTLET

SUPPLY

PRESSURE LINE

SUPPLY

PRESSURE

LINE

TYPE PRX

PILOT

TYPE PRX

PILOT

PILOT

EXHAUST

CONTROL LINE

TYPE PRX WIDE-OPEN MONITORING SYSTEM INSTALLATION

Figure 4. Typical Type EZR Monitoring System Installation Schematics

HAND

VALVE

ALTERNATE

CONTROL LINE

HAND

VALVE

Type EZR

BLOCK VALVE

UPSTREAM REGULATOR

DOWNSTREAM

REGULATOR BLOCK VALVE

OUTLET INLET

SUPPLY

PRESSURE LINE

TYPE PRX

PILOT SUPPLY

PRESSURE

LINE

PILOT

EXHAUST

TYPE PRX

PILOT

HAND

VALVE

CONTROL LINE

ALTERNATE

CONTROL LINE

TYPE PRX WIDE-OPEN MONITORING SYSTEM INSTALLATION WITH PILOT EXHAUST TO INTERMEDIATE PRESSURE

HAND

VALVE

BLOCK VALVE MONITOR REGULATOR

WORKING

REGULATOR

BLOCK VALVE

INLET OUTLET

SUPPLY

PRESSURE LINE

(1) PLUGGED

TYPE PRX-120

WORKING PILOT

L

S

A

B

S

B

L (1)

TYPE PRX-125

MONITOR PILOT

SUPPLY

PRESSURE

LINE

CONTROL LINE

TYPE PRX WORKING MONITOR SYSTEM INSTALLATION

Figure 4. Typical Type EZR Monitoring System Installation Schematics (continued)

ALTERNATE

CONTROL LINE

HAND

VALVE

HAND

VALVE

6. As shown in Figure 3, run a supply pressure line from the upstream pipeline to the restrictor inlet

(use 3/8 NPT outer diameter tubing or larger).

Install a Type 252 pilot supply filter upstream of the   restrictor, if needed, to keep the supply source  from clogging the restrictor or pilot. Inspect and  clean this filter regularly to make sure it has not  been plugged.

7.  Install a downstream pressure control line (as  shown in the appropriate view of Figure 3) to the pilot control line connection. Connect the other  end of the control line at a minimum of 8 to 10 pipe diameters downstream of the regulator in a straight run of pipe. Do not place a control line connection in  a turbulent area, such as in or directly downstream of a swage or elbow. Significant restrictions in the  control line can prevent proper pressure registration.

When using a hand valve, it should be a full flow  valve, such as a full port ball valve. With a

Type 161EBM or 161AYM pilot or a PRX Series pilot, run a downstream exhaust bleed line to the downstream bleed line connection in the pilot body assembly.

8. Good piping practices usually require swaging up to larger downstream piping to obtain reasonable downstream fluid velocity. 

Wide-Open Monitor Installations

  1.  Follow the procedures in the All Installations section  and then continue with step 2 of this section.

2. Pilot supply for the downstream monitoring regulator must be obtained between the two regulators as shown in Figure 4. For sizing purposes, add the minimum differential pressure for each regulator together to establish the required pressure drop across the station.

  3.  In a wide-open Type EZR monitoring system, system  lockup will be that of the worker regulator on both an  upstream monitor when the upstream pilot exhaust is piped to the intermediate pressure and a downstream monitor with upstream pilot exhaust piped to either intermediate pressure or outlet pressure. With these configurations, the diaphragm of the monitor regulator  will change position with every load change. On an upstream monitor with the upstream pilot exhaust piped to downstream, lockup will occur at the  monitor’s setpoint and the diaphragm of the monitor regulator will be fully open during normal conditions.

9

Type EZR

FILTER

TYPE PRX/120

PILOT TYPE PRX/125

PILOT

S

L

A

B

S

A

B

FILTER

TYPE PRX/120

PILOT

S

L

A

B

INLET INTERMEDIATE

M1001_05/2016

INLET PRESSURE

OUTLET PRESSURE

ATMOSPHERIC PRESSURE

LOADING PRESSURE

INTERMEDIATE PRESSURE

TYPE PRX:

S- SUPPLY PORT

B- BLEED PORT

L- LOADING PORT

A - SENSING PORT

Figure 5. Type EZR-PRX-PRX Working Monitor Schematic

OUTLET

Working Monitor Installations

On working monitor installations, the working monitor  regulator is always upstream and acts as a first-stage  regulator through the working pilot during normal  operation. This arrangement allows the working  monitor’s performance to be observed at all times.

Then, should the second-stage regulator fail open, the working monitor regulator assumes the entire  pressure reduction function of the system through the monitoring pilot.

Use the following procedure when installing a working  monitor system.

  1.  Follow the procedures in the All Installations  section and then continue with step 2 of this section.

2. Pilot supply pressure for the downstream

Type EZR regulator must be made directly upstream of the Type EZR using intermediate pressure.

3. Table 9 gives the spread between normal distribution pressure and the minimum pressure at which the monitor pilot can be set to take over if  the working regulator fails open.

4. Table 4 shows the minimum differential pressure requirements across an individual regulator.

Because this application uses a first-stage  and second-stage pressure reduction, add the minimum differential pressure for each regulator together to establish the required pressure drop across the station. Do not exceed maximum pilot  ratings given in Table 3.

For Type PRX Working Monitor

As shown in Figure 5, run a supply pressure line

(use 3/8 NPT outer diameter tubing or larger) from the upstream pipeline to the inlet (Port S) of the upstream

Type PRX-120 pilot. Install a Type 252 pilot supply  filter upstream of the pilot, if needed, to keep the  supply source from clogging the restrictor in the pilot.

Inspect and clean this filter regularly to make sure it  has not been plugged.

Connect the loading port (Port L) of the upstream 

Type PRX-120 pilot to the bonnet of the upstream

Type EZR regulator. Connect the “B” port of the upstream 

Type PRX-120 pilot to the “S” port of the upstream 

Type PRX-125 pilot. Connect the “A” port (located on the  underside of the pilot) of the upstream Type PRX-120 pilot to the intermediate pressure between the first and second 

Type EZR regulators as shown in Figure 5.

The “L” port of the upstream Type PRX-125 pilot is plugged. Connect the “B” port of upstream 

Type PRX-125 pilot to the intermediate pressure

10

Type EZR between the first and second Type EZR regulators.

Connect the “A” port of upstream Type PRX-125 pilot downstream of both regulators.

The pilot supply pressure connection for the downstream Type EZR regulator must be directly upstream of the Type EZR using intermediate pressure and connected to the “S” port of the downstream 

Type PRX-120. Install a Type 252 pilot supply filter  upstream of the pilot, if needed, to keep the supply  source from clogging the restrictor in the pilot. Inspect  and clean this filter regularly to make sure it has not  been plugged. Connect the loading port (Port L) of the  downstream Type PRX-120 pilot to the bonnet of the downstream Type EZR regulator. Connect the “A” and 

“B” ports of the downstream Type PRX-120 pilot to  downstream pressure.

Startup and Adjustment

Note

Table 10 shows the maximum inlet and differential pressures for specific constructions. Use pressure gauges to monitor inlet pressure, outlet pressure and any intermediate pressure during startup.

CAUTION

To prevent damage to the Type PRX pilot during startup, the sense and bleed lines 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.  For easy initial startup, set the restrictor to the “8”  position. For future startups, the restrictor can be left in the desired run position.

4. SLOWLY OPEN the valves in the following order:

a. Pilot supply and control line valve(s), if used

        b. Inlet block valve

        c. Outlet block valve

5. For a 161 Series pilot with Type 112 restrictor, turn the restrictor(s) to position “2” or to the  desired run position. For a PRX Series pilot, turn the restrictor screw 1 turn counterclockwise from  fully seated (turn restrictor fully clockwise then 

W4559_1

Figure 6. Restrictor Adjustment

1 turn counterclockwise) and the damper screw  fully counterclockwise.

6. For a single regulator, set the pilot to the desired outlet (control) pressure according to the pilot adjustment procedure.

For a wide-open downstream monitor

installation, adjust the upstream working pilot until  intermediate pressure is higher than the desired setpoint of the monitor pilot. Adjust the downstream monitoring pilot to the desired monitoring takeover  pressure. Reduce the upstream pilot to the normal outlet pressure setting.

For a wide-open upstream monitor installation, adjust the downstream working pilot to a setpoint  higher than the setpoint of the monitor pilot.

Adjust the upstream monitoring pilot to the desired monitor takeover pressure. Reduce the downstream  pilot setting to normal outlet pressure setting.

For a working monitor installation, turn out the adjusting screw of the downstream pilot, removing spring tension. Adjust the upstream working pilot  to the desired intermediate pressure setting. Turn out the adjusting screw of the upstream monitor pilot, removing spring tension. Turn in the adjusting screw of the downstream pilot. Adjust the upstream monitor pilot to the desired setpoint taking into  account the guidelines shown in Table 9. Establish final desired downstream pressure by adjusting the  downstream pilot.

Pilot Adjustment

For 161 Series pilots, remove the pilot closing cap

(key 16, Figure 19 or key 22, Figure 20) and, on 

161EB Series only, loosen the locknut (key 12, 

Figure 19). Turn the adjusting screw (key 11, 

Figure 19 or key 35, Figure 20) into the spring case 

(key 2, Figure 19 or key 3, Figure 20) to increase the  downstream pressure. Turn the adjusting screw out of the spring case to decrease the downstream pressure.

11

Type EZR

Table 5. 161EB Series Pilot Adjustment Recommendations

PILOT TYPE

161EB Series Pilots

RECOMMENDED TYPE 112 RESTRICTOR

SETTINGS FOR LOW FLOW OPERATION

Restrictor Setting of “5” or greater

TYPE 112 RESTRICTOR SETTINGS TO AVOID

AT LOW FLOW

Avoid restrictor setting of “2” or less if continuous  flows are expected to be less than 5%  of maximum capacity

Note: Higher Type 112 restrictor settings will increase proportional band. Adjustment of the Type 112 restrictor will also cause a shift in setpoint. Setpoint should be checked and adjusted  following restrictor setting adjustment.

Table 6. Type 161AY/161AYM Pilot Adjustment Recommendations

PILOT TYPE

161AY Series Pilots

RECOMMENDED TYPE 112

RESTRICTOR SETTINGS FOR LOW

FLOW OPERATION

Restrictor Setting of “5” or greater

RECOMMENDED ORIFICE SIZE(S)

FOR LOW FLOW OPERATION

3/32 or 1/8 in. / 2.38 or 3.18 mm

(3/32 in. / 2.38 mm is standard)

TYPE 112 RESTRICTOR SETTINGS

AND ORIFICE SIZES TO AVOID AT

LOW FLOW

Avoid restrictor setting of “2” or less if  continuous flows are expected to be  less than 5% of maximum capacity

Note: Higher Type 112 restrictor settings will increase proportional band. Adjustment of the Type 112 restrictor will also cause a shift in setpoint. Setpoint should be checked and adjusted  following restrictor setting adjustment.

Table 7. Type PRX Pilot Adjustment Recommendations

PILOT TYPE

PRX/120 and PRX/120-AP Series

RECOMMENDED TYPE PRX RESTRICTOR AND DAMPER

SCREW SETTINGS FOR LOW FLOW OPERATION

Restrictor Screw

- 1 turn out (counterclockwise) from fully seated for most  low flows

- 2-1/2 turns out (for flows less than 

5% of maximum)

Damper Screw

- Fully out (counterclockwise) from seated for most  low flows

- One turn out (for flows less than 5% of maximum) 

TYPE PRX RESTRICTOR AND DAMPER SCREW

SETTINGS TO AVOID AT LOW FLOW

Restrictor Screw

- Fully seated (clockwise) or full out 

(counterclockwise)

Damper Screw

- Full in (clockwise)

Note: Counterclockwise adjustment of the Type PRX restrictor screw will increase proportional band. Adjustment of the restrictor screw will also cause a shift in setpoint. Setpoint should  be checked and adjusted following restrictor screw adjustment.

For PRX Series pilots (Figure 26), loosen locknut 

(key 2) and turn the adjusting screw into the spring case  to increase (or out of the spring case to decrease) the downstream pressure. When the required downstream pressure is maintained for several minutes, tighten the locknut to lock the adjusting screw in position  and replace the pilot closing cap.

The Restrictor and Damper screws on the PRX Series  pilot control the regulator’s proportional band (droop) and speed of response. Table 7 includes the appropriate settings for low flow operation. For additional tuning  follow the steps outlined below:

1. Start with the restrictor screw 1 turn counterclockwise from fully seated (turn restrictor  fully clockwise then 1 turn counterclockwise) and the  damper screw fully counterclockwise.

  2.  Turn damper screw clockwise until desired  performance is achieved. This reduces the flow path  of the damper. If the damper becomes fully seated 

(no longer able to turn clockwise) and the desired  performance has not been achieved, return the damper screw to the fully counterclockwise position.

!

WARNING

The damper screw should not be left in the fully seated position, as it will lock the regulator in last position which could cause incorrect pressure regulation.

3. Turn the restrictor screw an additional turn counterclockwise from fully seated. This increases  the flow path of the restrictor. If additional tuning  is required, repeat step 2. Follow this method until desired performance is achieved.

Type 112 Restrictor Adjustment

The Type 112 restrictor controls the regulator’s proportional band (droop) and speed of response. The restrictor can be used to fine tune the regulator for  maximum performance by decreasing the restrictor setting for tighter control (increased opening speed, decreased closing speed); or increasing the restrictor setting for maximum stability (decreased opening speed, increased closing speed). A lower setting also provides a narrower proportional band for better accuracy. The

“8” position has the largest flow, is most stable and  easiest for startup, however, using the “8” position 

12

Type EZR

Table 8. Diaphragm Material Selection Information

17E68

NITRILE (NBR)

17E97 (1)

NITRILE (NBR)

Gas Temperature

(for lower temperatures

  contact your local Sales Office)

-20 to 150°F / -29 to 66°C 0 to 150°F / -18 to 66°C

General Applications Best for cold temperatures.

Best for high pressure conditions, i.e. transmission service or high pressure industrial service. It is also the best for  abrasive or erosive service applications.

Excellent Heavy Particle Erosion

Natural Gas With:

Up to 3% aromatic

hydrocarbon content (3)

3 to 15% aromatic

hydrocarbon content (3)

15 to 50% aromatic

hydrocarbon content (3)

Up to 3% H

2

S (hydrogen

 sulfide or sour gas)

 Up to 3% ketone

Up to 10% alcohol

Up to 3% synthetic lube

Fair

Good

Poor

Not recommended

Good

Fair

Good

Fair

1. The NPS 6 / DN 150, 17E97 diaphragm will perform in gas temperatures as low as -20°F / -29°C.

2. For differential pressures above 400 psig / 27.6 bar diaphragm temperature is limited to 150°F / 66°C.

3. The aromatic hydrocarbon content is based on percent volume.

Excellent

Good

Poor

Good

Fair

Good

Fair

17E88

FLUOROCARBON (FKM)

0 to 260°F / -18 to 127°C (2)

Best for natural gas having aromatic hydrocarbons. It is also the best for high  temperature applications.

Good

Excellent

Good

Fair

Good

Table 9. Type EZR Working Monitor Performance

Construction

Type 161AY or

161AYM

Type 161EBM

MONITORING PILOT

Outlet (Control) Pressure Range

6 to 15 in. w.c.

0.5 to 1.2 psig

1.2 to 2.5 psig

2.5 to 4.5 psig

4.5 to 7 psig

5 to 15 psig

10 to 40 psig

30 to 75 psig

70 to 140 psig

130 to 200 psig

200 to 350 psig

15 to 37 mbar

34 to 83 mbar

83 mbar to 0.17 bar

0.17 to 0.31 bar

0.31 to 0.48 bar

0.34 to 1.0 bar

0.69 to 2.8 bar

2.1 to 5.2 bar

4.8 to 9.7 bar

9.0 to 13.8 bar

13.8 to 24.1 bar

Spring Part Number

1B653927022

1B537027052

1B537127022

1B537227022

1B537327052

17B1260X012

17B1262X012

17B1259X012

17B1261X012

17B1263X012

17B1264X012

MINIMUM PRESSURE OVER NORMAL DISTRIBUTION

PRESSURE AT WHICH MONITOR PILOT CAN BE SET

WITH A RESTRICTOR SETTING OF 2

1 in. w.c.

1 in. w.c.

0.5 psig

0.5 psig

0.5 psig

0.5 psig

0.5 psig

0.6 psig

1.3 psig

1.5 psig

3 psig

2 mbar

2 mbar

34 mbar

34 mbar

34 mbar

34 mbar

34 mbar

41 mbar

90 mbar

0.10 bar

0.21 bar

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

1. Monitor pilot minimum setpoint was determined with a pressure drop ranging from 50 to 150 psig / 3.5 to 10.3 bar. Approximately double the minimum monitor pilot setpoint.

is not necessary. The “0” setting has the smallest 

(minimum) flow passage; at no point of rotation will the 

Type 112 restrictor be completely shut off. After initial adjustment, the restrictor does not need to be adjusted for maintenance or startup.

Low Flow Application Considerations

For stable, low flow operation, other considerations  besides pilot settings should also be addressed.

Installation of an oversized regulator may make low flow  operation difficult. When possible, a smaller-sized  

Type EZR should be installed. Reduced capacity trim reduces relief valve requirements by decreasing the maximum possible flow through the regulator but does  not improve low flow performance. During design of a  regulator installation, the downstream piping volume should be maximized. Control lines should not be located  in or near piping sections that may experience turbulent flow, such as elbows or swages. Larger diameter control  lines are also recommended in low flow conditions. The  larger control lines are less restrictive and will reduce pilot exhaust bleed backpressure to the pilot that may cause  instability. Separate sense and exhaust lines may also help at low flow conditions. This feature is provided on the 

PRX Series, Types 161EBM and 161AYM pilots. Control  line taps should be located in straight pipe; several pipeline diameters (8 to 10 of largest piping on outlet) downstream of the regulator. These guidelines have been used to improve station stability at low flow.

13

Type EZR

Table 10. Main Valve Maximum Pressure Ratings, Diaphragm Selection Information and Main Spring Selection (1)

BODY SIZE

NPS / DN

1 and 1-1/4 x 1 /

25 and 32 x 25

DIAPHRAGM

MATERIAL

17E68 Nitrile (NBR)

Low temperature

17E97 Nitrile (NBR)

High pressure and/or erosion resistance

17E88 Fluorocarbon (FKM)

High aromatic hydrocarbon content resistance

17E68 Nitrile (NBR)

Low temperature

MAXIMUM

OPERATING INLET

PRESSURE psig

100

460

500

1050

100

500

750

100

360

(4) bar

6.9

31.7

34.5

72.4

6.9

34.5

51.7

6.9

24.8

MAXIMUM

OPERATING

DIFFERENTIAL

PRESSURE (4) psid

100

400

500

800

100

500

500

100

300 bar d

6.9

27.6

34.5

55.2

6.9

34.5

34.5

6.9

20.7

(3)

(3)

MAXIMUM

EMERGENCY INLET

AND DIFFERENTIAL

PRESSURE psid

100

460

1050

1050

100

750

750

100

360 bar d

6.9

31.7

72.4

72.4

6.9

51.7

51.7

6.9

24.8

MAIN SPRING

COLOR CODE

Light Blue

Black

Black

Black with White 

Stripe (2)

Light Blue

Black

Black with White 

Stripe (2)

Light Blue

Black with White 

Stripe

Black with White 

Stripe

Red Stripe (2)

DIAPHRAGM

DESIGNATION

2 x 1 / 50 x 25

17E97 Nitrile (NBR)

High pressure and/or erosion resistance

500

1050

34.5

72.4

500

800

34.5

55.2

500

1050

34.5

72.4

2 / 50

17E88 Fluorocarbon (FKM)

High aromatic hydrocarbon content resistance

17E68 Nitrile (NBR)

Low temperature

17E97 Nitrile (NBR)

High pressure and/or erosion resistance

100

750

100

460

500

1050

6.9

51.7

6.9

31.7

34.5

72.4

100

500

100

400

500

800

6.9

34.5

6.9

27.6

34.5

55.2

(3)

100

750

100

460

1050

1050

6.9

51.7

6.9

31.7

72.4

72.4

Light Blue

Black with White 

Stripe

Red (2)

Yellow

Green

Green

or Purple (2)

17E88 Fluorocarbon (FKM)

High aromatic hydrocarbon content resistance

17E68 Nitrile (NBR)

Low temperature

100

500

750

100

360

6.9

34.5

51.7

6.9

24.8

100

500

500

100

300

6.9

34.5

(3)

34.5

(3)

6.9

20.7

100

750

750

100

500

6.9

51.7

51.7

6.9

34.5

Yellow

Green

Red (2) or Purple (2)

Yellow

Light Blue

130

3 / 80

17E97 Nitrile (NBR)

High pressure and/or erosion resistance

500

1050

34.5

72.4

500

800

34.5

55.2

1050

1050

72.4

72.4

Light Blue

Black (2)

17E88 Fluorocarbon (FKM)

High aromatic hydrocarbon

content resistance

100

500

750

100

6.9

34.5

51.7

6.9

100

500

500

100

6.9

34.5

(3)

34.5

(3)

6.9

100

750

750

100

6.9

51.7

51.7

6.9

Yellow

Light Blue

Black (2)

Yellow 17E68 Nitrile (NBR)

Low temperature 360 24.8

300 20.7

500 34.5

Green

4, 6 x 4 and 8 x 4 /

100, 150 x 100 and 200 x 100

6, 8 x 6 and 12 x 6 /

150, 200 x 150 and 300 x 150

17E97 Nitrile (NBR)

High pressure and/or erosion resistance

17E88 Fluorocarbon (FKM)

High aromatic hydrocarbon content resistance

17E97 Nitrile (NBR)

High pressure and/or erosion resistance

17E88 Fluorocarbon (FKM)

High aromatic hydrocarbon content resistance

500

1050

100

500

750

100

500

1050

100

500

34.5

72.4

6.9

34.5

51.7

6.9

34.5

72.4

6.9

34.5

500

800

100

500

500

100

500

800

100

500

34.5

55.2

6.9

34.5

(3)

34.5

(3)

6.9

34.5

55.2

6.9

34.5

(3)

1050

1050

100

750

750

100

1050

1050

100

750

72.4

72.4

6.9

51.7

51.7

6.9

72.4

72.4

6.9

51.7

Green

Red

Red

(2)

Yellow

Green

(2)

Yellow

Green

Red (2)

Yellow

Green

750 51.7

500 34.5

(3) 750 51.7

Red (2)

8 / 200

17E97 Nitrile (NBR)

High pressure and/or erosion resistance

100

500

1050

6.9

34.5

72.4

100

500

800

6.9

34.5

55.2

100

1050

1050

6.9

72.4

72.4

Yellow

Green

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 500 psig / 34.5 bar.

3. For differential pressures above 400 psid / 27.6 bar d diaphragm temperatures are limited to 150°F / 66°C.

4.  These are recommendations that provide the best regulator performance for a typical application. Please contact your local Sales Office for further information if a deviation from the  standard recommendations is required.

14

PILOT SUPPLY CONNECTION: 1/4 NPT PIPE

CONNECTS TO UPSTREAM PILOT SUPPLY TAP

Type EZR

LOADING CONNECTION: 1/4 NPT PIPE CONNECTS TO

TYPE EZR DIAPHRAGM LOADING PORT

OUTLET CONNECTION: 1/4 NPT PIPE

CONNECTS TO PILOT INLET CONNECTION

11B5004-A

TYPE 112

OPTIONAL LOADING CONNECTION:

1/4 NPT NORMALLY PLUGGED

CONTROL LINE CONNECTION:

1/2 NPT PRESSURE

REGISTRATION ONLY. USE

3/8 NPT O.D. TUBING OR LARGER

FOR CONTROL LINE.

INLET 3/4 NPT CONNECTS

TO 1/4 NPT TYPE 112 OUTLET

B2609

TYPE 161AY

CONTROL LINE CONNECTION:

3/4 NPT PRESSURE

REGISTRATION AND PILOT

BLEED (EXHAUST). USE

3/4 NPT PIPE MINIMUM FOR

CONTROL LINE.

INLET 3/4 NPT

CONNECTS

TO 1/4 NPT

TYPE 112 OUTLET

TYPE 161AYM

PILOT BLEED (EXHAUST)

CONNECTION: 3/4 NPT. USE

1/2 NPT PIPE MINIMUM FOR BLEED

(EXHAUST) LINE.

INLET 1/4 NPT

CONNECTS

TO 1/4 NPT

TYPE 112 OUTLET

21B5005-A

1/4 NPT

NORMALLY PLUGGED

SENSE

INLET 1/4 NPT

CONNECTS

TO 1/4 NPT

TYPE 112 OUTLET

CONTROL LINE CONNECTION:

1/4 NPT PRESSURE

REGISTRATION AND PILOT BLEED

(EXHAUST). USE 3/8 NPT

O.D. TUBING LARGER FOR

CONTROL LINE.

TYPE 161EB TYPE 161EBM

Figure 7. Pilot Port Function and Connection Sizes

CONTROL LINE CONNECTION:

1/4 NPT PRESSURE

REGISTRATION ONLY. USE

3/8 NPT O.D. TUBING OR LARGER

FOR CONTROL LINE.

PILOT BLEED (EXHAUST)

CONNECTION: 1/4 NPT. USE 3/8 NPT

O.D. TUBING OR LARGER FOR BLEED

(EXHAUST) LINE.

15

Type EZR

Shutdown for Both Single-Regulator and

Monitoring Installations

!

WARNING

If pilot supply pressure is shut down first, the downstream system may be subjected to full inlet pressure.

  1.  If the pilot setting must be disturbed, be sure to  keep some tension on the spring. This will prevent  trapping inlet pressure during blow down.

  2.  Close the valves shown in Figure 3 or 4, in the  following order:

        a. Inlet block valve

        b. Outlet block valve

        c. Control line valve(s), if used

3. Open the vent valves to depressurize the system.

Maintenance

Regulator parts are subject to normal wear and must be inspected periodically and replaced as necessary. Due to the care Emerson takes in meeting  all manufacturing requirements (heat treating, dimensional tolerances, etc.), use only replacement parts manufactured or furnished by Emerson. Also, when lubrication is required, use a good quality lubricant and sparingly coat the recommended part.

The frequency of inspection and parts replacement depends upon the severity of service conditions, applicable codes and government regulations and company inspection procedures. Table 12 lists various regulator problems and possible solutions for them.

Type EZR Main Valve Trim Parts

Instructions are given for complete disassembly and  assembly. The main valve body may remain in the pipeline during maintenance procedures. Key numbers are referenced in Figures 14 through 18.

CAUTION

Avoid personal injury or damage to property from sudden release of pressure or uncontrolled gas or other process fluid. Before starting to disassemble, carefully release all pressures according to the Shutdown procedure. Use gauges to monitor inlet and outlet pressures while releasing these pressures.

ELASTOMER/FABRIC

MATERIAL CODE

THICKNESS

CODE

YEAR OF MANUFACTURE

RADIAL LOCATION

TO LOCATE

IMPRINT CODE

1

1 11

1

1

LOCATE INK CODE

BETWEEN RADII

MATERIAL

INK CODE

DOME IDENTIFICATION

THICKNESS INK

CODE (USE ONE

LOCATION ONLY)

MANUFACTURER

CODE

Figure 8. Diaphragm Markings

Table 11. Diaphragm Imprint Codes

STYLE MATERIAL

Imprint Ink Mark Imprint Ink Mark

2 17E68

DIAPHRAGM MATERIAL

2 130

4

5

17E88

17E97

17E68 - Nitrile (NBR)

(low temperature)

17E88 - Fluorocarbon (FKM)

(high aromatic hydrocarbon

content resistance)

17E97 - Nitrile (NBR)

(high pressure and/or erosion resistance)

Converting a Fisher™ E-Body to Type EZR

Remove all trim parts from the main valve and clean the body interior. Then follow procedure in Assembly section to convert a Fisher E-body to a Type EZR.

CAUTION

When installing a Type EZR trim package 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

16

Type EZR

Table 12. Troubleshooting Guide

PROBLEM

Outlet pressure suddenly rises above

setpoint and approaches inlet pressure

 Outlet pressure normal at low flow but 

 falls below setpoint at high flow

Outlet pressure cycles

POSSIBLE SOLUTION

 •  If travel indicator is in UP position, check restrictor and pilot supply filter for plugging

 •  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

 •  Check sizing calculations to be sure main valve body is large enough for load

 •  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

 •  Check control line placement. Make sure it is not located in a turbulent area.

 •  Make sure there is not a restriction in the control line, such as a needle valve.

 •  Replace pilot diaphragm assembly

 •  Replace indicator stem O-ring, if indicator is not desired, convert to a non-travel indicator assembly

 •  Check pilot for ice. Moisture in the gas can cause ice to form and build up in the pilot, blocking the flow.

Heating the regulator or adding a de-icing agent will reduce the possibility of icing.

Gas escapes from pilot spring case

Gas escapes from travel indicator

Regulator unexpectedly closes or falls

below setpoint

Outlet pressure approaches inlet

 pressure when no flow is desired

Regulator will not open

 •  Check main valve O-rings for damage or improper installation

 •  Check cage and diaphragm surfaces for erosion or trapped debris

 •  Check pilot valve plug and seat for seating surface damage or debris

 •  Check pilot for ice

 •  Check for clogged control line

 •  Make sure control line is installed and open

 •  Check for damage to the main valve diaphragm

 •  On new installations, make sure the control line and pilot supply are properly connected

Regulator will not close

 •  Make sure the pilot supply is properly connected

 •  Check restrictor for clogging

 •  Check the main valve diaphragm for damage

 •  Check for a broken control line

 High lock-up pressure with slow shutdown  •  Check for debris on main valve or pilot seat

 High lock-up pressure with fast shutdown  •  Adjust restrictor to a higher setting

Note: If you were unable to solve your problem using this troubleshooting guide, contact your local Sales Office.

if flow is not in the correct direction. After assembly, check the regulator for shutoff and leakage to atmosphere.

Disassembly

Disassembly of Type EZR

1. Shutdown, isolate and depressurize the main valve and pilot.

2. Remove travel indicator assembly or travel indicator plug assembly using the Travel Indicator 

Assembly Maintenance section.

  3.  Remove the cap screws (key 3). Lift up and  remove the bonnet (key 2) from the body (key 1).

Note

For the NPS 8 / DN 200 body, the lifting flange (key 143) is capable of supporting the full weight of the regulator assembly and can be utilized to lift bonnet if required.

  4.  Remove the diaphragm and plug assembly (key 9)  and bonnet O-ring (key 28). For NPS 2 x 1 / 

DN 50 x 25 sizes, use a screwdriver to remove the  upper adaptor (key 131).

  5.  Pull out the cage (key 7), O-ring (key 8) and inlet  strainer or strainer shim (key 23) (if no strainer). 

For NPS 2 x 1 / DN 50 x 25 sizes, remove the  lower adaptor (key 132).

  6.  Clean parts and replace if necessary. To change  the O-ring (key 121) on a 6 in. / 152 mm cage with  attached restrictor plate (key 71), remove cap screws 

(key 126).

Assembly

  1.  Install  the  inlet  strainer  or  shim  (key  23)  into  the  body (key 1). 

Note

When installing in a vertical orientation, apply lubricant to the bottom of the inlet strainer or strainer shim (key 23) to help hold parts in place while installing cage.

  2. Lightly lubricate and install the cage O-ring (key 8).

3. Apply lubricant lightly to all O-rings or the mating part before installing them.

  4.  Install the cage (key 7) and lightly lubricate and  install the bonnet O-ring (key 28). 

17

Type EZR

DIAPHRAGM

(KEY 9)

BOTTOM PLUG

(KEY 11)

FLANGED

LOCKNUT

(KEY 13)

O-RING

(KEY 70)

O-RING

(KEY 14)

TOP PLUG

(KEY 5)

O-RING

(KEY 10)

Figure 9. Diaphragm and Plug Assembly Components

To assemble a 6 in. / 152 mm cage with attached restrictor plate (key 71), lightly lubricate the O-ring 

(key 121) and place it on the restrictor plate. 

Secure the cage to the restrictor plate with the cap screws (key 126), using a torque of 10 to 

12 ft-lbs / 14 to 16 N•m. 

For NPS 2 x 1 / DN 50 x 25 sizes, the lower adaptor (key 132) must be assembled on the  cage before placing in the body. Lightly lubricate  the lower adaptor O-rings (keys 121 and 67) and  place the lower adaptor on a flat surface. Then  press the cage down into the lower adaptor.

5.  Lubricate the top and bottom of the outer  edge (bead area) of the diaphragm and place diaphragm and plug assembly (key 9) on the  cage (key 7) making sure the bead is in the cage  groove. Lubricate the top plug (key 5) recess. For 

NPS 2 x 1 / DN 50 x 25 sizes, the upper adaptor 

(key 131) must be placed on the cage before the  bonnet (key 2). Lightly lubricate the upper adaptor 

O-ring (key 133) and then press the upper adaptor  onto the cage.

6. Prior to installing the travel indicator or travel indicator plug, install the bonnet (key  2) in proper orientation.

CAUTION

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 Type EZR markings on the top.

  7.  Lubricate cap screws (key 3) and secure the  bonnet (key 2), using an even crisscross pattern. It  may be necessary to push down on bonnet to start cap screws. Tighten cap screws to proper torque

(see Table 13).

  8.  Lightly lubricate the travel indicator assembly  threads and install the indicator fitting (key 19) into  the bonnet (key 2, Figure 14), tighten to the proper  torque (see Table 13).

Diaphragm and Plug

Assembly Maintenance

The diaphragm and plug assembly can be replaced as a single unit (a diaphragm cartridge) or individual components within the assembly can be replaced. When replacing individual components, inspect each component for damage and wear and replace parts as needed. Key numbers for the following assembly and disassembly procedure are referenced in Figures 9 and 14.

1. Place a screwdriver or similar tool through the hole in the top plug (key 5).

  2.  Remove the flanged locknut (key 13) from  the bottom plug (key 11). This loosens the  entire assembly.

Note

On NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25,

32 x 25 and 50 x 25 bodies, remove the socket head screw (key 129) and lock washer (key 130) from the bottom plug.

  3.  Remove the bottom plug (key 11) and the bottom  plug O-ring (key 10).

  4. Remove the diaphragm (key 9).

  5. Remove the top plug O-rings (keys 14 and 70).

  6. Check all components for damage or wear and  

replace as necessary.

7. When reassembling, be sure to lubricate all O-rings before installing.

  8.  Hold the top plug (key 5). Place the parts on the  top plug in the following order:

18

INDICATOR COVER

(KEY 21)

HEX NUTS

(KEY 4)

INDICATOR FITTING

(KEY 19)

Type EZR

O-RING

(KEY 18)

UPPER SPRING

SEAT (KEY 17)

MAIN SPRING

(KEY 12)

INDICATOR STEM

(KEY 15)

BODY SIZE, NPS / DN

1 or 1-1/4 x 1 / 25 or 32 x 25

2 x 1 or 2 / 50 x 25 or 50

3 / 80

4, 6 x 4 or 8 x 4 /

100, 150 x 100 or 200 x 100

6, 8 x 6 or 12 x 6 /

150, 200 x 150 or 300 x 150

8 / 200

INDICATOR

O-RING (KEY 6)

BACK-UP

RINGS

(KEY 16)

INDICATOR

WASHER (KEY 20)

Cap Screw

75 to 95 / 102 to 129

55 to 70 / 75 to 95

100 to 130 / 136 to 176

160 to 210 / 217 to 285

275 to 300 / 373 to 407

400 to 450 / 542 to 610

Figure 10. Travel Indicator Parts

Table 13. Torque Values

TORQUE, Ft-lbs / N•m

Flange Locknut

4 to 6 / 5.4 to 8.1

Indicator Fitting

90 to 160 / 122 to 217

6 to 8 / 8.1 to 11

19 to 25 / 26 to 34

90 to 160 / 122 to 217

200 to 300 / 271 to 407

19 to 25 / 26 to 34 200 to 300 / 271 to 407

50 to 100 / 68 to 136

90 to 110 / 122 to 149

300 to 425 / 407 to 577

300 to 425 / 407 to 577

WASHER (KEY 79)

(NPS 6 / DN 150 SIZE ONLY)

Indicator Plug

90 to 160 / 122 to 217

90 to 160 / 122 to 217

200 to 300 / 271 to 407

200 to 300 / 271 to 407

300 to 425 / 407 to 577

300 to 425 / 407 to 577

    •  O-ring (key 14)

    •  O-ring (key 70)

    •  Diaphragm (key 9)

    •  O-ring (key10)

    •  Bottom Plug (key 11)

    •  Flanged Locknut (key 13)

  9.  Reassemble in the reverse order. Tighten flange  locknut (key 13) to proper torque (see Table 13).

Travel Indicator Assembly Maintenance

Travel indicator assembly key numbers are referenced  in Figures 10, 14 and 18. The indicator assembly can be removed and installed without removing the bonnet (key 2) from the body (key 1). Travel indicator  maintenance is performed for two reasons:

a. When damaged or worn parts need replacing.

b. When travel indicator is removed and replaced with a travel indicator plug assembly.

!

WARNING

Avoid personal injury or damage to property from sudden release of pressure or uncontrolled gas or other process fluid. Before starting to disassemble, carefully release all pressures according to the shutdown procedure. Use gauges to monitor inlet, loading and outlet pressures while releasing these pressures.

  1.  Remove the indicator protector (key 22, Figure 14)  and indicator cover (key 21).

  2.  Remove the first hex nut (key 4) and the indicator  washer (key 20). 

  3.  Unscrew the second hex nut (key 4) on the top of  the indicator stem (key 15). Do not remove.

  4. Use a wrench to remove indicator fitting (key 19).

  5.  Lift out travel indicator assembly. If replacing travel  indicator with travel indicator plug, skip to step 9.

  6.  Compress the main spring (key 12). Remove the  second hex nut (key 4). Parts will separate easily  when the hex nut is removed.

  7.  Slide the indicator stem (key 15) out of the  indicator fitting (key 19). The main spring (key 12)  and upper spring seat (key 17) will be free.

  8.  If necessary, use the indicator stem (key 15) to pry  the back-up rings (key 16) and O-ring (key 18) out  of the indicator fitting (key 19).

19

Type EZR

  9.  Check the indicator fitting O-ring (key 6). Lubricate  and replace if necessary.

10. To replace travel indicator parts, lubricate all O-rings, back-up rings and threads. To  reassemble, hold the indicator stem (key 15) and  place the parts on the stem in the following order

(see Figure 10).

    •  Washer (key 79 for NPS 6 / DN 150 size only)

    •  Main Spring (key 12), small end first

    •   Upper Spring Seat (key 17), make sure to place  the large end toward the spring

    •  First Back-up Ring (key 16)

    •  O-ring (key 18)

    •  Second Back-up Ring (key 16)

    •   Indicator Fitting (key 19), the back-up rings 

(key 16) and O-ring (key 18) should slide into  the indicator fitting and the small end of the  upper spring seat (key 17) should slide into the  indicator fitting.

    •  First Hex Nut (key 4)

    •  Indicator Washer (key 20)

    •  Second Hex Nut (key 4)

11.  Install the indicator fitting (key 19) into the bonnet 

(key 2, Figure 14), tighten to the proper torque 

(see Table 13).

To set the travel indicator, hold the indicator cover

(key 21) next to the indicator fitting (key 19). 

Screw the hex nuts (key 4) and the indicator  washer (key 20) down on the indicator stem 

(key 15) until the washer is even with the lowest  marking on the indicator cover. Lightly lubricate  the indicator cover threads and install. Replace the indicator protector (key 22).

To replace the travel indicator with the non-travel

indicator option, place the main spring (key 12) into  the bonnet. Install the indicator plug (key 19) and  tighten to proper torque (see Table 13).

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.

Figure 11. 161EB Series Pilot Trim Removal/Installation

Trim Parts

1. As shown in Figure 11, remove the body plug

(key 3) to let the plug spring (key 6) and valve plug 

(key 4) drop freely from the body.

  2.  Inspect the removed parts and body plug O-ring 

(key 15), replace as necessary and make sure the  plug seating surfaces are free from debris.

3. Sparingly apply lubricant to the body plug O-ring

(key 15) and the threads of the body plug (key 3). 

Install the body plug O-ring over the body plug.

  4. Stack the plug spring (key 6) and valve plug 

      (key 4) on the body plug (key 3). Install the body  

      plug with stacked parts into the body (key 1).

Diaphragm Parts

  1.  Remove the closing cap (key 16), loosen the locknut 

(key 12) and back out the adjusting screw (key 11)  until compression is removed from the control spring

(key 9).

  2.  Remove the machine screws (key 13, not shown)  and separate the spring case (key 2) from the body 

(key 1). Remove the control spring seat (key 8),  the control spring (key 9). If used, remove the  diaphragm limiter (key 10). Replace if necessary.

  3.  Remove the diaphragm assembly (key 7) and  inspect the diaphragm.

4. On Type 161EBM pilots, inspect the stem guide seal assembly (key 19) and, if damaged, replace  the complete assembly. Inspect the outer O-ring 

(key 22) and replace if necessary.

  5.  Install the diaphragm assembly (key 7) and push  down on it to see if the valve plug (key 4) strokes  smoothly and approximately 1/16 in. / 1.6 mm.

  6.  Stack the control spring (key 9), control spring seat 

(key 8) and diaphragm limiter (key 10) (if used) on 

20

Type EZR the diaphragm assembly (key 7). If used, make sure  the diaphragm limiter is installed beveled side up on

Types 161EB and 161EBM pilots with 200 to

350 psig / 13.8 to 24.1 bar outlet pressure range.

Lightly apply lubricant to the control spring seat.

  7.  Install the spring case (key 2) on the body (key 1)  with the vent (key 18) properly oriented. Make sure  the vent is not directly over inlet or outlet piping due to possible icing. Install the machine screws (key 13,  not shown), using a crisscross pattern, torque them to 5 to 7 ft-lbs / 6.8 to 9.5 N•m for stainless  steel bodies and 2 to 3 ft-lbs / 2.7 to 4.1 N•m  for aluminum bodies. Lubricate the adjusting  screw threads.

8. When maintenance is complete, refer to the Startup and Adjustment section to put the regulator back  into operation and adjust the pressure setting.

Tighten the locknut (key 12), replace the closing cap  gasket (key 17) if necessary and install the closing  cap (key 16).

161AY Series Pilots (Figure 20)

Body Area

Use this procedure to gain access to the disk  assembly, orifice and body O-ring. All pressure must  be released from the diaphragm casing and the disk  assembly must be open, before these steps can be performed.

  1.  Remove the cap screws (key 2) and separate the  diaphragm casing (key 4) from the body (key 1). 

  2.  Remove body seal O-ring (key 11) and the back-up  ring (key 50). Inspect the body seal O-ring and replace  if necessary.

  3.  Inspect and replace the orifice (key 5) if necessary. 

Lubricate the threads of the replacement orifice  with a good grade of light grease and install with

29 to 37 ft-lbs / 39 to 50 N•m of torque.

  4.  Remove the cotter pin (key 15) if it is necessary to  replace the disk assembly (key 13) or the throat  seal O-ring (key 31) of a Type 161AYM.

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.  Install the disk assembly (key 13) and secure it  with the cotter pin (key 15).

  7.  Place back-up ring (key 50) into the body (key 1)  then place the body seal O-ring (key 11) into the body. 

  8.  Place the diaphragm casing (key 4) on the body 

(key 1). Secure the diaphragm casing to the body  with the cap screws (key 2).

BODY SEAL O-RING (KEY 11)

BACK-UP RING (KEY 50)

BODY (KEY 1)

Figure 12. Expanded View of the Body Area

Showing the O-ring and Back-up Ring Placement

Diaphragm and Spring Case Area

Use this procedure to change the control spring and to inspect, clean or replace parts in the spring case and diaphragm assembly.

To Change the Control Spring:

  1.  Remove the closing cap (key 22) and turn the  adjusting screw (key 35) counterclockwise until all  compression is removed from the control spring

(key 6).  

  2.  Change the control spring (key 6) to match the  desired spring range.

  3. Replace the adjusting screw (key 35).

  4.  Install the replacement closing cap gasket (key 25)  if necessary and reinstall the closing cap (key 22).

  5.  If the spring was changed, be sure to change the  stamped spring range on the nameplate.

To Disassemble and Reassemble Diaphragm Parts

  1.  Remove the closing cap (key 22) and turn adjusting  screw (key 35) counterclockwise to remove adjusting  screw, baffle plate (key 56) and control spring (key 6).

  2.  Remove the spring case hex nuts (key 23, not  shown), cap screws (key 24) and spring case (key 3).

  3.  Remove the diaphragm (key 10) and attached parts  by tilting them so that the pusher post (key 8) slips  off the lever assembly (key 16). To separate the  diaphragm (key 10) from the attached parts, unscrew  the machine screw (key 38) from the pusher post 

(key 8).

  4.  Inspect the pusher post (key 8) and the body seal 

O-ring (key 11), replace if required.

  5.  Remove hex nut (key 21) to separate the  diaphragm (key 10) and attached parts.

  6.  To replace the lever assembly (key 16), remove  the machine screws (key 17). To replace the  stem (key 14) or access the stem seal O-ring 

(key 30) also perform Body Area Maintenance 

21

Type EZR procedure steps 1 and 4 and pull the stem out of the diaphragm casing (key 4).

  7.  Install the stem (key 14) into the guide insert (key 18)  and perform Body Area Maintenance procedure steps 6 through 8 as necessary.

  8.  Install the lever assembly (key 16) into the stem 

(key 14) and secure the lever assembly with the  machine screws (key 17).

  9.  Install the parts on the pusher post in the order  listed below:

    •  Pusher Post (key 8)

    •  Pusher Post Connector (key 40)

    •  Connector Seal O-ring (key 49)

    •  Diaphragm Head (key 7)

    •  Diaphragm (key 10), pattern side up

    •  Diaphragm Head (key 7)

    •   Hex Nut (key 21) — Tighten the hex nut 

9 to 11 ft-lbs / 12 to 15 N•m to secure parts to  the pusher post connector (key 40)

    •  Overpressure Spring (key 39)

    •  Spring Holder (key 37)

    •  Machine Screw (key 38)

10.  Insert and tighten the machine screw (key 38) with  a torque of 1 to 3 ft-lbs / 1.4 to 4.1 N•m to secure  the diaphragm parts to the pusher post (key 8).

11.  Install the assembled parts in the diaphragm  casing (key 4). Make sure the lever (key 16) fits  in the pusher post (key 8) and that the holes in  the diaphragm (key 10) align with the holes in the  diaphragm casing.

12.  Place the spring case (key 3) on the diaphragm  casing (key 4) so the vent assembly (key 26) is  oriented correctly and secure with the cap screws

(key 24) and hex nuts (key 23, not shown),  fingertight only.

13.  Insert the control spring (key 6) into the spring  case (key 3), followed by the baffle plate (key 56)  and adjusting screw (key 35).

14.  Turn the adjusting screw (key 35) clockwise until  there is enough spring (key 6) force to provide proper  slack to the diaphragm (key 10). Using a crisscross  pattern, tighten the cap screws (key 24) and hex nuts 

(key 23, not shown) to 14 to 17 ft-lbs / 19 to 23 N•m  of torque. To adjust the outlet pressure to the desired setting, refer to Startup and Adjustment section.

15.  Install a replacement closing cap gasket (key 25) if  necessary and then install the closing cap (key 22).

PRX Series Maintenance

CAUTION

Always remove spring compression before performing maintenance on this unit.

To remove spring compression, loosen locknut (key 2, Figure 26) and back out adjusting screw (key 1) until compression is removed from the spring (key 7).

Lower Case Maintenance

1. Remove pressure from the pilot.

  2.  Remove machine screws (key 10) from lower  cover (key 21) and the separate lower cover from  the body (key 16).

  3.  Use a wrench to hold the stem (key 23) and loosen  the stem nut (key 20). Remove the stem nut and  washer (key 11).

  4.  Remove the upper diaphragm plate (key 13),  diaphragm (key 14), pad holder (key 22) and O-ring 

(key 18). Inspect parts for damage or wear and  replace if necessary.

  5.  Remove orifice (key 19) and O-ring (key 17). 

Inspect the parts for damage or wear and replace if  necessary. Lightly lubricate the O-ring and place in  the body (key 16). Install the orifice.

  6. Set the pad holder (key 22) in the body (key 16).

  7.  Lightly 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.  Lightly lubricate the O-ring (key 18) and place it in  the lower cover (key 21).

  9.  Place the washer (key 11) and stem nut (key 20)  on the stem (key 23) and tighten. If also performing 

Upper Case Maintenance, skip to step 2 of the 

Upper Case Maintenance section.

10.  Insert machine screws (key 10) in the lower cover 

(key 21) and tighten uniformly to ensure proper seal.

Upper Case Maintenance

1. Remove pressure from the pilot.

  2.  Loosen locknut (key 2) and back out adjusting  screw (key 1) until compression is removed from  the spring (key 7). Remove cap (key 3).

  3.  Lift the upper spring seat (key 6), spring (key 7)  and O-ring (key 4) out of the upper cover (key 8). 

Inspect O-ring and replace if necessary.

22

Type EZR

Figure 13. Pushing Groove Valve Up With Retainer

  4.  Remove machine screws (key 10) from lower cover 

(key 21) and the separate lower cover from the body 

(key 16), unless removed during lower diaphragm  maintenance. Use a wrench to hold stem (key 23)  securely while removing the upper diahragm nut

(key 26).

5. Remove remaining loose components: washer

(key 11), upper diaphragm plate (key 13),  diaphragm (key 14), lower diaphragm plate 

(key 15) and O-rings (keys 18 and 25). Inspect  diaphragm and O-rings for damage or wear and replace if necessary.

  6.  Lightly lubricate the O-ring (key 25). Place O-ring  over the stem (key 23) and press it down into the  body (key 16).

  7.  Set the lower diaphragm plate (key 15) into the  body (key 16).

  8.  Lightly lubricate the rims of the diaphragm (key 14)  and place it in the body (key 16) on top of the lower  diaphragm plate (key 15).

  9.  Set the upper diaphragm plate (key 13) on top of  the diaphragm (key 14).

10.  Place washer (key 11) and upper diaphragm nut 

(key 26) on the stem (key 23) and tighten using a  wrench to hold the stem.

11. Set the upper spring seat (key 6).

Damper and Restrictor Maintenance

  1. Remove screw (key 31, Figure 26) and plate (key 29).

  2. Remove ring nuts (key 30).

  3.  Remove damper adjusting screw (key 27). 

Remove and inspect O-ring (key 28) for damage  or wear and replace if necessary. Lightly lubricate 

O-ring before placing on the adjusting screw. Insert  damper adjusting screw into the body (key 16) and  tighten. Insert ring nut (key 30) and tighten. Back  out damper adjusting screw until it stops.

  4.  Remove restrictor adjusting screw with hole (key 32). 

Remove and inspect O-ring (key 28) for damage or wear and replace if necessary. Lightly lubricate O-ring  before placing on the adjusting screw. Insert restrictor  adjusting screw into the body (key 16) and completely  tighten. Insert ring nut (key 30) and completely  tighten. Back out restrictor adjusting screw 1/2 turn.

Note

When using a Type PRX/120 pilot with a

Type PRX/125 pilot as a monitor, use the following settings:

• Restrictor - completely tighten and then back out three full turns.

• Damper - back out until it stops.

  5. Install plate (key 29) and screw (key 31).

Type 112 Restrictor

Perform this procedure only if O-rings are leaking. 

Key numbers are referenced in Figure 21.

  1.  Unscrew the groove valve (key 22) and retainer 

(key 23) just enough to loosen them, but do not  completely separate.

2. As shown in Figure 13, push on the retainer

(key 23) to push the groove valve (key 22) out of  the body (key 21), then complete disassembly.

  3.  Replace the groove valve O-rings (key 24) if necessary, being sure to lightly apply lubricant to the replacement O-rings before installing them in the groove valve and retainer.

  4.  Install the groove valve (key 22) into the same  side of the body where the scale appears. Install  the retainer into the opposite side of the body and tighten until both are secure.

5. When all maintenance is complete, refer to the

Startup and Adjustment section to put the regulator back into operation.

Parts Ordering

When corresponding with your local Sales Office about  this equipment, reference the equipment serial number found on a nameplate attached to the bonnet. When ordering replacement parts, reference the key number  of each needed part as found in the following parts list.

Separate kits containing all recommended spare parts  are available.

23

Type EZR

BODY SIZE,

NPS / DN

1 / 25

1-1/4 x 1 /

32 x 25

2 x 1, 2 /

50 x 25, 50

3 / 80

4 / 100

6 x 4 /

150 x 100

8 x 4 /

200 x 100

6 / 150

Table 14. Type EZR Main Valve Body Part Numbers (key 1, Figure 14)

BODY

MATERIAL

WCC Steel

END CONNECTION

STYLE

NPT

SWE

CL150 RF 

CL300 RF 

CL600 RF

SCH 40 BWE

SCH 80 BWE

Standard

(Included Tapped Inlet)

GE11581X012

GE11440X012

GE11583X012

GE11607X012

GE11608X012

GE11610X012

GE11611X012

BODY STYLE

Tapped Inlet and Tapped Outlet

GE32046X012

- - - - - - - - - - -

14B5623X032

14B5623X042

14B5623X052

14B5623X122

- - - - - - - - - - -

WCC Steel

Cast iron

WCC Steel

Cast iron

WCC Steel

Cast iron

WCC Steel

WCC Steel

WCC Steel

Cast iron

WCC Steel

NPT

CL600 RF

SCH 40 BWE

SCH 80 BWE

CL150 RF

CL300 RF

CL600 RF

SCH 40 BWE

SCH 80 BWE

CL150 RF

CL300 RF

CL600 RF

SCH 40 BWE

SCH 80 BWE

CL125 FF

CL250 RF

CL150 RF

CL300 RF

CL600 RF

SCH 40 BWE

SCH 80 BWE

NPT

CL125 FF

CL250 RF

NPT

SWE

CL150 RF

CL300 RF

CL600 RF

SCH 40 BWE

SCH 80 BWE

CL125 FF

CL250 RF

CL150 RF

CL300 RF

CL600 RF

SCH 40 BWE

SCH 80 BWE

PN 25/40

CL125 FF

CL250 RF

CL150 RF

CL300 RF

GE11582X012

GE10842X012

GE10843X012

GE10844X012

GE11772X012

GE16359X012

GE17626X012

GE16448X012

GE16561X012

GE17629X012

GE17630X012

GE17631X012

GE17627X012

GE17628X012

GE11444X012

GE11445X012

GE11447X012

GE11449X012

GE11451X012

GE11452X012

GE11453X012

GE10583X012

GE10585X012

GE10587X012

GE10588X012

GE10682X012

GE10676X012

GE10678X012

GE10679X012

GE10680X012

GE10681X012

GE10689X012

GE10698X012

GE10699X012

GE10700X012

GE10701X012

GE10702X012

GE10703X012

GE13594X012

GE10707X012

GE10822X012

GE10835X012

GE10839X012

- - - - - - - - - - -

ERSA04807A0

14B5834X012

14B5834X152

GG00315X012

GG04880X012

14B5834X032

14B5834X042

14B5834X052

14B5834X072

- - - - - - - - - - -

GG05163X012

14B5835X112

14B5835X032

14B5835X042

14B5835X052

14B5835X102

- - - - - - - - - - -

GG06484X012

14B5836X112

14B5836X032

14B5836X042

14B5836X052

14B5836X092

- - - - - - - - - - -

- - - - - - - - - - -

39B3356X012

- - - - - - - - - - -

- - - - - - - - - - -

ERSA03400A0

- - - - - - - - - - -

24B5837X032

24B5837X042

24B5837X052

24B5837X072

- - - - - - - - - - -

- continued -

24

Type EZR

Parts List

Type EZR Main Valve (Figures 14 to 18)

Note

On an NPS 1-1/4 x 1, 2 x 1, 6 x 4, 8 x 4, 8 x 6 or 12 x 6 / DN 32 x 25, 50 x 25, 150 x 100,

200 x 100, 200 x 150 or 300 x 150 body, the first digit indicates the end connection size and the second digit indicates the trim size.

Order parts according to trim size unless otherwise indicated.

Key Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Part Number

Parts Kits

  Diaphragm Cartridge and O-rings (Included are keys 5, 

6, 8, 9, 10, 11, 13, 14, 16, 18, 28, 66, 67, 70 and 121)

    NPS 1 and 1-1/4 x 1 / DN 25 and 32 x 25

      17E68 Nitrile (NBR) 

      17E97 Nitrile (NBR) 

      17E88 Fluorocarbon (FKM) 

    NPS 2 x 1 / DN 50 x 25

      17E68 Nitrile (NBR) 

      17E97 Nitrile (NBR) 

      17E88 Fluorocarbon (FKM) 

    NPS 2 / DN 50

10C0502X032

REZRX00CS12

10C0502X052

10C0502X042

REZRX00CS92

10C0502X022

18B5959X012

18B5959X022

18B5959X062

17E68 Nitrile (NBR)

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

    NPS 3 / DN 80

17E68 Nitrile (NBR)

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

    NPS 4, 6 x 4, 8 x 4 / DN 100, 150 x 100, 200 x 100

17E68 Nitrile (NBR)

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

    NPS 6, 8 x 6, 12 x 6 / DN 150, 200 x 150, 300 x 150

      17E97 Nitrile (NBR) 

17E88 Fluorocarbon (FKM)

    NPS 8 / DN 200

      17E97 Nitrile (NBR) 

  Diaphragm and O-rings (Included are

  keys 6, 8, 9, 10, 13, 14, 18, 28 and 70)

    NPS 1 / DN 25

17E68 Nitrile (NBR)

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

    NPS 2 x 1 / DN 50 x 25

17E68 Nitrile (NBR)

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

    NPS 2 / DN 50

17E68 Nitrile (NBR)

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

    NPS 3 / DN 80

17E68 Nitrile (NBR)

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

    NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100

17E68 Nitrile (NBR)

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

18B9884X022

18B9884X032

18B9884X072

18B8508X022

18B8508X032

18B8508X072

REZRX00CS62

19B2840X042

REZRX00CS82

19B2412X022

REZRX000S12

19B2412X072

19B2412X062

REZRX000S92

19B2412X052

18B5952X012

18B5952X022

18B5952X062

18B9885X022

18B9885X032

18B9885X072

18B8507X022

18B8507X032

18B8507X072

*Recommended Spare Part

 

 

 

 

Key Description

Parts Kits

Diaphragm and O-rings (Included are keys 6, 8, 9, 10, 13, 14, 18, 28 and 70) (continued)

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150

and 300 x 150

17E97 Nitrile (NBR)

17E88 Fluorocarbon (FKM)

  NPS 8 / DN 200

17E97 Nitrile (NBR)

Part Number

REZRX000S62

19B2837X042

REZRX000S82

 

 

 

 

 

 

4

 

 

 

 

 

1 Valve Body

2 Bonnet Assembly, Steel

See Table 14

  NPS 1 and 1-1/4 x 1 / DN 25 and 32 x 25 bodies  39B2403X022

  NPS 2 x 1 and 2 / DN 50 x 25 and 50 bodies  38B2122X022

38B5963X022   NPS 3 / DN 80 body  

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150

and 300 x 150 bodies

  NPS 8 / DN 200 body 

3   Cap Screw, Zinc-Plated Steel

  NPS 1 and 1-1/4 x 1 / DN 25 and 32 x 25

bodies (4 required)

  NPS 3 / DN 80 body (8 required) 

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies (8 required)

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

38B2133X022

49B0355X022

GE18697X022

1R281124052

  NPS 2 x 1 or 2 / DN 50 x 25 or 50 body (8 required)  1A453324052

1A454124052

1A440224052

 

 

 

 

and 300 x 150 bodies (12 required)

Hex Nut (2 required)

  NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25

50 x 25 and 50 body, Zinc-plated carbon steel

NPS 3, 4, 6 x 4, 8 x 4, 6, 8 x 6 and 12 x 6 /

     DN 80, 100, 150 x 100, 200 x 100, 150, 

1U513124052

1H322228982

      200 x 150 and 300 x 150 body, Stainless steel  1L286338992

  NPS 8 / DN 200 body, Zinc-plated carbon steel 

 

5 Top Plug, Stainless steel

1A573528982

 

 

 

 

 

  NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25 

and 50 x 25 bodies 29B2404X012

  NPS 2 / DN 50 body  

  NPS 3 / DN 80 body  

28B2130X012

28B8511X012

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 and  

200 x 100 bodies

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 and 

300 x 150 bodies

  NPS 8 / DN 200 body 

6* O-ring

28B5964X012

39B0370X012

39B5071X012

18B3438X012

1N430306382

 

 

7 

 

 

 

 

 

 

NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25, 

50 x 25 and 50 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 3 / DN 80 body 

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100

and 200 x 100 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

NPS 6, 8 x 6, 12 x 6 and 8 / DN 150, 200 x 150, 

300 x 150 and 200 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

Cage, Stainless steel

  NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25

10A8931X012

10A8931X052

10A8931X012

10A8931X052

10A3800X012

1R727606382

and 50 x 25 bodies 39B2413X012

  NPS 2 / DN 50 body 

  NPS 3 / DN 80 body  

  NPS 4 / DN 100 body 

  NPS 6 x 4 / DN 150 x 100 body 

NPS 8 x 4 / DN 200 x 100 body 

NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

and 300 x 150 bodies

  NPS 8 / DN 200 body 

37B9748X012

48B5961X012

48B2135X012

29B1881X012

29B1883X012

49B0353X012

59B5955X012

25

Type EZR

Key Description

 

 

 

 

 

 

 

8*   Cage O-ring (not required for NPS 2 x 1 or 8 x 6 /

  DN 50 x 25 or 200 x 150) bodies

    NPS 1 / DN 25 body

Nitrile (NBR)

Fluorocarbon (FKM)

    NPS 2 / DN 50 body

Nitrile (NBR)

Fluorocarbon (FKM)

    NPS 3 / DN 80 body

Nitrile (NBR)

Fluorocarbon (FKM)

    NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100

and 200 x 100 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

    NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

and 300 x 150 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

 

    NPS 8 / DN 200 body

Nitrile (NBR)

Fluorocarbon (FKM)

9*  Diaphragm 

 

 

 

  NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25 

and 50 x 25 bodies

17E97 Nitrile (NBR), high pressure

17E88 Fluorocarbon (FKM)

      17E68 Nitrile (NBR), low pressure 

  NPS 2 / DN 50 body 

17E68 Nitrile (NBR), low temperature

17E97 Nitrile (NBR), high pressure

17E88 Fluorocarbon (FKM)

  NPS 3 / DN 80 body

17E68 Nitrile (NBR), low temperature

17E97 Nitrile (NBR), high pressure

17E88 Fluorocarbon (FKM)

NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100

and 200 x 100 bodies

 

 

 

 

 

 

 

 

17E68 Nitrile (NBR), low temperature

17E97 Nitrile (NBR), high pressure

17E88 Fluorocarbon (FKM)

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

and 300 x 150 bodies

17E97 Nitrile (NBR)

      17E88 Fluorocarbon (FKM) 

  NPS 8 / DN 200 body

 

   

17E97 Nitrile (NBR) 

10* O-ring

 

 

NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25, 

50 x 25 and 50 bodies

Nitrile (NBR)

      Fluorocarbon (FKM) 

  NPS 3, 4, 6 x 4 and 8 x 4 / DN 80, 100, 

150 x 100 and 200 x 100 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

and 300 x 150 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

    NPS 8 / DN 200 body

Nitrile (NBR)

Fluorocarbon (FKM)

11 Bottom Plug, Stainless steel

  NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25 

and 50 x 25 bodies

  NPS 2 / DN 50 body 

  NPS 3 / DN 80 body 

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150

and 300 x 150 bodies

  NPS 8 / DN 200 body 

*Recommended Spare Part

26

Part Number

14A5713X012

13A2351X012

10B4428X012

10B4428X022

10B4366X012

10B4366X022

10B4373X012

10B4373X022

1H862306992

1H8623X0022

1V9229X0042

1V9229X0022

GE11960X012

39B2397X022

30C1009X012

29B1909X012

28B2123X052

29B2715X012

38B9886X012

39B2726X012

38B8512X022

38B8509X012

39B3996X012

39B1154X012

49B0357X012

40C1035X012 

40C1888X012

1E216306992

1L949306382

1J4888X0052

1J4888X0032

11A8741X052

11A8741X012

1F4636X0032

1N571406382

19B2407X012

18B2127X012

18B8513X012

18B5966X012

29B0763X012

29B5958X012

Key Description Part Number

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 Main Spring

  NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25 

and 50 x 25 bodies

White

      Black 

19B2399X012

GE12727X012

      Red Stripe (NPS 2 x 1 / DN 50 x 25 body only)  GE12501X012

      Light Blue 

      Black with White Stripe 

  NPS 2 / DN 50 body

Yellow

Green

Red for use with travel indicator

Purple for use with non-travel indicator

  NPS 3 / DN 80 body

Yellow

    Light Blue 

    Black 

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

Yellow

Green

Red

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150

and 300 x 150 bodies

Yellow

Green

Red

  NPS 8 / DN 200 body

Yellow

Green

Red

13   Flanged Locknut, Steel  

  NPS 2 / DN 50 body 

  NPS 3, 4, 6 x 4 and 8 x 4 / DN 80, 100,

150 x 100 and 200 x 100 bodies

  NPS 6, 8 x 6, 12 x 6 / DN 150, 

200 x 150 and 300 x 150 bodies

  NPS 8 / DN 200 body 

14* Top Plug O-ring

  NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25,

50 x 25 and 50 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 3, 4, 6 x 4 and 8 x 4 / DN 80, 100,

150 x 100 and 200 x 100 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 6, 8 x 6, 12 x 6 and 8 / DN 150, 200 x 150, 

300 x 150 and 200 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

15 Stem, Stainless steel

 

 

 

 

 

 

 

NPS 1, 1-1/4 x 1 and 2 x 1 /

    DN 25, 32 x 25 and 50 x 25 bodies 

  NPS 2 / DN 50 body with travel indicator 

  NPS 3, 4, 6 x 4 and 8 x 4 / DN 80, 100, 

150 x 100 and 200 x 100 bodies

  NPS 6, 8 x 6 and 12 x 6 / DN 150

200 x 150 and 300 x 150 bodies

  NPS 8 / DN 200 body 

16   Back-up Ring (2 required) 

NPS 1, 1-1/4 x 1, 2 x 1 and 2 /

    DN 25, 32 x 25, 50 x 25 and 50 bodies 

 

 

 

 

NPS 3, 4, 6 x 4, 8 x 4, 6, 8 x 6 and 12 x 6 /

    DN 80, 100, 150 x 100, 200 x 100, 150, 

200 x 150 and 300 x 150 bodies

  NPS 8 / DN 200 body 

17 Upper Spring Seat

NPS 1, 1-1/4 x 1 and 2 x 1 /

    DN 25, 32 x 25 and 50 x 25 bodies 

  NPS 2 / DN 50 body with travel Indicator 

NPS 3, 4, 6 x 4 and 8 x 4 /

    DN 80, 100, 150 x 100 and 200 x 100 bodies 

19B2400X012

19B2401X012

19B0951X012

18B2126X012

18B5955X012

GE05504X012

T14184T0012

19B0781X012

19B0782X012

T14184T0012

18B8501X012

18B8502X012

19B0364X012

19B0366X012

19B0365X012

GE09393X012

GE09396X012

GE09397X012

18B2139X012

15A7591X012

19B0361X012

10C1267X012

13A1584X052

13A1584X022

10A3803X062

10A3803X032

T12050X0012

T12050X0022

T14185T0012

T14185T0012

T21074T0012

29B0366X012

29B5076X012

1N659106242

1J418806992

1K786806992

18B2129X012

18B2129X012

18B5968X012

Type EZR

Key   Description   Part Number

 

 

 

 

 

17 Upper Spring Seat (continued)

NPS 6, 8 x 6 and 12 x 6 /

    DN 150, 200 x 150 and 300 x 150 bodies 

  NPS 8 / DN 200 body 

18* O-ring

  NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25,

50 x 25 and 50 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 3, 4, 6 x 4, 8 x 4, 6, 8 x 6 and 12 x 6 / DN 80, 

100, 150 x 100, 200 x 100, 150, 200 x 150

and 300 x 150 bodies

      Nitrile (NBR) 

 

Fluorocarbon (FKM)

  NPS 8 / DN 200 body 

Nitrile (NBR)

Fluorocarbon (FKM)

 

19   Indicator Fitting, Stainless steel

  NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25,

50 x 25 and 50 bodies

 

 

 

  NPS 3, 4, 6 x 4 and 8 x 4 / DN 80, 100, 

150 x 100 and 200 x 100 bodies

  NPS 6, 8 x 6, 12 x 6 / DN 150, 200 x 150 

and 300 x 150 bodies

  NPS 8 / DN 200 body 

19  Indicator Plug, Stainless steel 

 

 

    NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25

and 50 x 25 bodies

  NPS 2 / DN 50 body 

  NPS 3, 4, 6 x 4 and 8 x 4 / DN 80, 100, 

 

150 x 100 and 200 x 100 bodies

  NPS 6, 8, 8 x 6 and 12 x 6 / DN 150, 200, 

200 x 150 and 300 x 150 bodies

20  Indicator Washer 

 

    NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25, 

50 x 25 and 50 bodies

  NPS 3, 4, 6 x 4, 8 x 4, 6, 8 x 6 and 12 x 6 / DN 80, 

100, 150 x 100, 200 x 100, 150, 200 x 150

 

and 300 x 150 bodies

  NPS 8 / DN 200 body 

 

21   Indicator Cover, Plastic

 

 

  NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25, 

50 x 25 and 50 bodies

  NPS 3, 4, 6 x 4 and 8 x 4 / DN 80, 100, 

150 x 100 and 200 x 100 bodies

  NPS 6, 8, 8 x 6 and 12 x 6 / DN 150, 200, 

200 x 150 and 300 x 150 bodies

22   Indicator Protector, Plastic 

29B0764X012

20C1357X012

1H2926X0032

1H2926X0022

1D191706992

1N423906382

1E472706992

1N430406382

28B2128X012

28B5969X012

39B0358X012

30C1356X012

19B2409X012

GE17585X012

28B5970X012

39B0767X012

18B2138X012

18B8503X012

20C2461X012

T14188T0012

19B2270X012

19B4691X012

 

 

 

 

 

 

 

  NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25, 

50 x 25 and 50 bodies

  NPS 3, 4, 6 x 4, 8 x 4, 6, 8, 8 x 6 and 12 x 6 / DN 80, 

100, 150 x 100, 200 x 100, 150, 200, 200 x 150

and 300 x 150 bodies

23   Inlet Strainer, Stainless steel 

  NPS 2 x 1 and 2 / DN 50 x 25 and 50 bodies 

  NPS 3 / DN 80 body 

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

 

and 300 x 150 bodies

  NPS 8 / DN 200 body 

 

23 Strainer Replacement Shim, Stainless steel

 

 

   

 

 

and 300 x 150 bodies

  NPS 8 / DN 200 body 

24 Nameplate

24B1301X012

29B2269X012

  NPS 1 and 1-1/4 x 1 / DN 25 and 32 x 25 bodies  20B8004X012

10B4409X012

20B4367X012

20B4374X012

20B7853X012

29B5966X012

  NPS 1 and 1-1/4 x 1 / DN 25 and 32 x 25 bodies  13B8061X012

  NPS 2 x 1 and 2 / DN 50 x 25 and 50 bodies 

  NPS 3 / DN 80 body 

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

13B8062X012

13B8063X012

13B8064X012

13B8065X012

39B5967X012

- - - - - - - - - - -

 

*Recommended Spare Part

Key   Description   Part Number

 

 

 

 

28* O-ring

 

 

 

 

25 Flow Arrow, Stainless steel

26   Drive Screw, Stainless steel 

  For NPS 1 and 1-1/4 x 1 / DN 25 

and 32 x 25 (4 required)

For NPS 2 x 1, 2, 3, 4, 6, 6 x 4 and 8 x 4, /

    DN 50 x 25, 50, 80, 100, 150, 150 x 100 

and 200 x 100 (5 required)

  For NPS 8 / DN 200 (6 required) 

  NPS 1 and 1-1/4 x 1 / DN 25 and 32 x 25 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 2 x 1 and 2 / DN 50 x 25 and 50 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 3 / DN 80 body

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

and 300 x 150 bodies

Nitrile (NBR)

  

Fluorocarbon (FKM)

  NPS 8 / DN 200 body

Nitrile (NBR)

Fluorocarbon (FKM)

47 Hex Nut, SA194-2H

    (NPS 8 / DN 200 body only) (8 required) 

63 Pilot Supply Pipe Plug, Steel (2 required)

64 Bonnet Pipe Plug, Steel

For NPS 1, 1-1/4 x 1, 2 x 1, 2, 3, 4, 6, 8 x 6,

    12 x 6, 6 X 4 and 8 X 4 / DN 25, 32 x 25, 

50 x 25, 50, 80, 100, 150, 200 x 150,

300 x 150, 150 x 100 and 200 x 100

 

 

 

 

 

  For NPS 8 / DN 200 

66  O-ring (NPS 8 x 6 / DN 200 x 150 body only)

Nitrile (NBR)

Fluorocarbon (FKM)

 

67 O-ring

  NPS 2 x 1 / DN 50 x 25 body

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 8 x 6 / DN 200 x 150 body

Nitrile (NBR)

Fluorocarbon (FKM)

70* O-ring

 

 

 

 

 

 

  NPS 1, 1-1/4 x 1, 2 x 1 and 2 / DN 25, 32 x 25, 

50 x 25 and 50 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 3, 4, 6 x 4 and 8 x 4 / DN 80, 100, 

150 x 100 and 200 x 100 bodies

Nitrile (NBR)

Fluorocarbon (FKM)

    NPS 6, 8 x 6, 2 x 6 and 8 / DN 150, 

200 x 150, 300 x 150 and 200 body

Nitrile (NBR)

Fluorocarbon (FKM)

 

71 Restrictor Plate, Stainless steel

  NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25 

and 50 x 25 bodies

For 60% Capacity Trim 

For 30% Capacity Trim 

  NPS 2 / DN 50 body

    For 60% Capacity Trim 

    For 30% Capacity Trim 

  NPS 3 / DN 80 body

    For 60% Capacity Trim 

    For 30% Capacity Trim 

- - - - - - - - - - -

1A368228982

19B2838X012

19B2838X022

18B2124X012

18B2124X022

18B8514X012

18B8514X022

18B2140X012

18B2140X022

19B0359X012

10A3591X012

1P5585X0022

1P5585X0032

1A4452X0612

1A767524662

1A767524662

1A369224492

18A2556X022

18A2556X032

10B4428X012

10B4428X022

1V335006562

1V3350X0012

13A1584X052

13A1584X022

10A3803X062

10A3803X032

T12050X0012

T12050X0022

19B2835X012

19B2836X012

18B2144X012

18B2145X012

28B8516X012

28B8517X012

27

Type EZR

Key Description Part Number

 

 

 

 

 

 

 

 

   

 

71 Restrictor Plate, Stainless steel (continued)

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

For 60% Capacity Trim 

For 30% Capacity Trim 

  NPS 6 / DN 150 body

    For 100% Capacity Trim 

    For 60% Capacity Trim 

    For 30% Capacity Trim 

  NPS 8 x 6 / DN 200 x 150 body

    For 100% Capacity Trim 

    For 60% Capacity Trim 

    For 30% Capacity Trim 

  NPS 12 x 6 / DN 300 x 150 body

    For 100% Capacity Trim 

 

 

 

    For 60% Capacity Trim 

    For 30% Capacity Trim 

72 E-Ring, for Restricted Trim, Steel

 

 

    NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25 

and 50 x 25 bodies

  NPS 2 / DN 50 body 

  NPS 3 / DN 80 body 

    NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

79  Washer (NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

 

and 300 x 150 bodies), Stainless steel

121 O-ring

  NPS 2 x 1 / DN 50 x 25 body 

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 6, 8 x 6 and 12 x 6 / DN 150, 200 x 150 

 

 

and 300 x 150 bodies

      Nitrile (NBR) 

        Fluorocarbon (FKM) 

126  Cap Screw, Steel (4 required)

 

    NPS 6 / DN 150 body 

  NPS 8 x 6 / DN 200 x 150 body 

    NPS 12 x 6 / DN 300 x 150 body 

129  Socket Head Screw, Stainless steel

 

    For NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25 

    and 50 x 25 only 

 

130  Lock Washer, Stainless steel 

 

 

 

 

 (NPS 8 / DN 200 body only) (8 required) 

137  Lower Spring Seat, Stainless steel

    NPS 8 / DN 200 body only 

140   Bushing, Carbon Steel

  NPS 6, 8 x 6 and 12 x 6, 8 / DN 150, 

    200 x 150 and 300 x 150, 200 bodies    

143  Lifting Flange

  NPS 8 / DN 200 body only 

144  Yoke Locknut

  NPS 8 / DN 200 body only 

28B8504X012

28B8505X012

49B0367X012

49B0368X012

49B0369X012

49B0768X012

49B0776X012

49B0775X012

49B0769X012

49B2396X012

49B0777X012

19B2411X012

16A7882X012

18B8518X012

18B8506X012

19B0362X012

T12587T0012

T12587T0022

1D269206992

1D2692X0022

1L7325X0042

1V6816X0012

19B3650X022

1D6170X0012

 

  For NPS 1, 1-1/4 x 1 and 2 x 1 / DN 25, 32 x 25

and 50 x 25 only 1A329128982

131  Upper Adaptor (NPS 2 x 1 / DN 50 x 25 body only)       29B5963X012

132  Lower Adaptor (NPS 2 x 1 / DN 50 x 25 body only)  19B5964X012

133* O-ring

NPS 2 x 1 / DN 50 x 25 body only

Nitrile (NBR)

Fluorocarbon (FKM)

  NPS 8 / DN 200 body only 

 

136 Stud, Steel

1F262906992

1F2629X0012

1N3330X0032

11A5189X282

GE09140X012

1C379026232   

30C1724X012

1E832723062

161EB Series Pilots (Figure 19)

Part Number Key Description

 

Type 161EB Parts Kit, Nitrile (NBR)

  (included are keys 4, 6, 7 and 15)

5 to 200 psig / 0.34 to 13.8 bar

200 to 350 psig / 13.8 to 24.1 bar

*Recommended Spare Part

28

R161X000012

R161X000022

Key Description

 

Type 161EBM Parts Kit, Nitrile (NBR)

  (included are keys 4, 6, 7, 15, 17, 19 and 22)

5 to 200 psig / 0.34 to 13.8 bar

200 to 350 psig / 13.8 to 24.1 bar

1   Body Assembly, CF8M Stainless steel 

Types 161EB

Types 161EBM

2   Spring Case, Stainless steel  

3 Body Plug, Stainless steel

4* Valve Plug,

Nitrile (NBR) with stainless steel stem

Fluorocarbon (FKM) with stainless steel stem

6 Plug Spring, Stainless steel

7*   Diaphragm Assembly, Diaphragm

with Stainless steel diaphragm plate

8   Control Spring Seat, Plated steel  

9   Control Spring, Zinc-plated steel  

10   Diaphragm Limiter, Stainless steel  

11 Adjusting Screw, Plated steel

12   Locknut, Zinc-plated steel  

13 Machine Screw, Plated steel (6 required)

Types 161EB and 161EBM

14 Pipe Plug

Type 161EB

15 Body Plug O-ring, Nitrile (NBR)

16  Closing Cap 

Nylon (PA)

Metal, for pressure loading

Types 161EB and 161EBM only

17*   Closing Cap Gasket, 

 

Pressure loading for metal closing cap

    Types 161EB and 161EBM only 

18 Type Y602-12 Vent Assembly, Plastic

19* Stem Guide Seal Assembly

Type 161EBM

Stainless steel seal and

seal retainer with Nitrile (NBR) O-ring

22 O-ring (Type 161EBM)

38  Lower Spring Seat 

Part Number

R161MX00012

R161MX00022

1B7971X0252

30B8715X012

27B9722X012

1B7975X0052

20B9389X052

20B9389X062

1E701337022

See Table 15

See Table 15

See Table 15

See Table 15

See Table 15

1D667728982

1V4360X0022

1A767535072

1F113906992

24B1301X012

17B1406X012

1C659804022

27A5516X012

10B8711X012

10A0904X012

18B1248X012

Type 161AY or 161AYM Pilot (Figure 20)

Key Description

6 

5 

3 

4 

 

1 

2 

Parts Kit (included are keys 10, 11, 12, 13, 15, 25,

30, 31, 33, 45, 48 and 49)

Body, Cast iron 

Cap Screw (2 required) 

Spring Case Assembly, Ductile iron 

Lower Casing, Ductile iron

Type 161AY

Type 161AYM

Orifice, 303 Stainless steel

3/32 in. / 2.4 mm

1/4 in. / 6.4 mm

1/8 in. / 3.2 mm

Control Spring

6 to 15 in. w.c. / 15 to 37 mbar

0.5 to 1.2 psig / 34 to 83 mbar

1.2 to 2.5 psig / 83 mbar to 0.17 bar

7 

8

2.5 to 4.5 psig / 0.17 to 0.31 bar

4.5 to 7 psig / 0.31 to 0.48 bar

Diaphragm Head (2 required) 

Pusher Post

10  Diaphragm

Nitrile (NBR)

Fluorocarbon (FKM)

11 Body Seal

Nitrile (NBR)

Fluorocarbon (FKM)

Part Number

RY690AX0012

1E987119012

1C856228992

13B0109X042

17B5352X012

47B3063X012

0R044135032

0B042035032

1A936735032

1B653927022

1B537027052

1B537127022

1B537227022

1B537327052

17B9723X032

27B5354X012

37B9720X012

23B0101X052

1H993806992

1H9938X0012

Type EZR

Key Description Part Number

 

 

12  Insert Seal

Nitrile (NBR)

Fluorocarbon (FKM)

13  Disk Assembly

  Nitrile (NBR) 

  Fluorocarbon (FKM) 

14 Stem

15  Cotter Pin 

16  Lever Assembly 

17 Machine Screws (2 required)

18   Guide Insert 

21 Hex Nut

1B885506992

1B8855X0012

1C4248X0202

1C4248X0052

17B3423X012

1A866537022

1B5375000B2

19A7151X022

27B4028X022

1A354024122

22  Closing Cap

Plastic (standard) T13524T0062

Steel

23 Hex Nut (8 required)

24  Cap Screw (8 required) 

25  Closing Cap Gasket 

1E422724092

1A352724122

1A352524052

1P753306992

 

26 Vent Assembly

 

  

  Spring Case Down (Type Y602-1) 

  Spring Case Up (Type Y602-11) 

  Spring Case Sideways (Type Y602-12) 

27 Pipe Plug, Type 161AY only

 

 

30 Stem Seal O-ring, Type 161AYM only

Nitrile (NBR)

Fluorocarbon (FKM)

31 Throat Seal, Type 161AYM only

  Nitrile (NBR) 

  Fluorocarbon (FKM) 

33 Machine Screw, Type 161AYM only

35 Adjusting Screw

37 Spring Holder

38 Machine Screw

39 Overpressure Spring

40  Pusher Post Connector 

 

46 Nameplate

47   Drive Screw (2 required) 

48 Post Seal

  Nitrile (NBR) 

Fluorocarbon (FKM)

49  Connector Seal

Nitrile (NBR)

Fluorocarbon (FKM)

50  Back-up Ring 

55  Restriction 

56   Baffle Plate 

Type Y602X1-A1

Type Y602X1-A11

Type Y602X1-A12

1A369224492

1H2926G0012

1H2926X0022

1D682506992

1D6825X0012

18A0703X022

1B537944012

1R982025072

10B6189X022

1B541327022

27B7982X012

- - - - - - - - - - -

1A368228982

1D687506992

1N430406382

13A1584X012

13A1584X022

18B3446X012

1D483514012

11B4292X012

161EB Series Mounting Parts

Standard Configuration

Key Description

 

 

 

 

29 Pipe Nipple, Plated steel

  NPS 1 and 1-1/4 / DN 25 and 32 body  

  NPS 2 and 3 / DN 50 and 80 body  

  NPS 4 / DN 100 body 

NPS 6, 6 x 4 and 8 x 4 /

    DN 150, 150 x 100 and 200 x 100 bodies 

NPS 8 x 6 and 12 x 6 /

 

 

    DN 200 x 150 and 300 x 150 bodies 

  NPS 8 / DN 200 body 

38   Pipe Nipple, Plated steel   

Type 112 Restrictor (Figure 21)

Key Description

14 Pipe Plug, Stainless steel

21 Body, Stainless steel

22 Groove Valve, Stainless steel

*Recommended Spare Part

Part Number

1N584226232

1U264426232

1U5728X0012

1C210026232   

1C215726012

1C215726012

1D239726232

Part Number

1A767535072

20B4429X012

20B4403X012

Key Description

 

23 Retainer, Stainless steel

24* Groove Valve O-ring (2 required),

  Fluorocarbon (FKM) 

Part Number

10B4402X012

1C8538X0052

161AY Series Mounting Parts (Figure 22)

For Regulator Pilot

Key Description Part Number

 

 

 

4  Nut, SA194 (2 required) 

29 Pipe Nipple, Plated Steel

 

NPS 1 and 1-1/4 x 1 /

    DN 25 and 32 x 25 bodies  

NPS 2 x 1, 2 and 3 /

    DN 50 x 25, 50 and 80 bodies   

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

NPS 6, 8 x 6 and 12 x 6 /

    DN 150, 200 x 150 and 300 x 150 bodies  

    NPS 8 / DN 200 body 

45 Bushing, Plated Steel

1C3306X0832

1N584226232

1N624026232

1U5728X0012

 

 

 

46   Washer, (2 required)   

47 Nut (2 required)

48 U-Bolt

49   Mounting Bracket

NPS 1 and 1-1/4 x 1 /

    DN 25 and 32 x 25 bodies  

  NPS 2 x 1 and 2 / DN 50 x 25 and 50 bodies   

  NPS 3 / DN 80 body  

  NPS 4 / DN 100 body  

NPS 6, 8 x 6 and 12 x 6 /

    DN 150, 200 x 150 and 300 x 150 bodies 

  NPS 8 / DN 200 body  

1C210026232

1C215726012 

1A3424X00A2

1D716228982

1E944024112

11B3469X012

37B4475X012

31B3466X012

31B3467X012

- - - - - - - - - - -

 

 

 

 - - - - - - - - - - -

- - - - - - - - - - -

73 Stud, Zinc-plated steel (2 required) - - - - - - - - - - -

For Working Monitor Set

Key Description

 

 

 

 

4  Nut, SA194 (2 required) 

29 Pipe Nipple, Plated Steel

NPS 1 and 1-1/4 x 1 /

    DN 25 and 32 x 25 bodies  

NPS 2 x 1, 2 and 3 /

    DN 50 x 25, 50 and 80 bodies  

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

NPS 6, 8 x 6 and 12 x 6 /

    DN 150, 200 x 150 and 300 x 150 bodies  

    NPS 8 / DN 200 body  

38   Pipe Nipple, Plated Steel      

45 Bushing Plated Steel (2 required)

46   Washer (2 required)   

47 Nut, (2 required)

48 U-Bolt

49   Mounting Bracket

NPS 1 and 1-1/4 x 1 /

    DN 25 and 32 x 25 bodies  

 

 

 

NPS 2 x 1 and 2 /

    DN 50 x 25 and 50 bodies   

  NPS 3 / DN 80 body  

  NPS 4, 6 x 4 and 8 x 4 / DN 100, 150 x 100 

and 200 x 100 bodies

 

 

NPS 6, 8 x 6 and 12 x 6 /

    DN 150, 200 x 150 and 300 x 150 bodies  

    NPS 8 / DN 200 body  

50   Cap screw (2 required)

 

NPS 2 x 1, 2, 3, 4, 6 x 4, 8 x 4 , 6, 8 x 6,

    12 x 6 / DN 50 x 25 , 50 , 80, 100, 150 x 100 

and 200 x 100, 150, 200 x 150,

300 x 150 bodies

73 Stud, Zinc-plated steel (2 required)

Part Number

1C3306X0832

1N584226232

1N624026232

1U5728X0012

1C210026232 

1C215726012

1D239726232

1A3424X00A2

1D716228982 

1E944024112

11B3469X012

37B4475X012

31B3466X012

31B3467X012

31B3468X012

31B4920X012

GE13864X012 

1A344424052

1H2597X0012

29

Type EZR

PRX Series Mounting Parts (Figure 22)

Key Description Part Number

63 Nipple, Pipe, Hex

 

NPS 1, 1-1/4, 2x 1, 2, 3, 4, 6 x 4 and 8 x 4 /

    DN 25, 32, 50 x 25, 50, 80, 100, 150 x 100

and 200 x 100 bodies

64 Nipple

NPS 6, 8 x 6, 12 x 6, 8 /

                DN 150, 200 x 150, 300 x 150, 200 bodies 

65  Coupling

NPS 6, 8 x 6, 12 x 6, 8 /

                DN 150, 200 x 150, 300 x 150, 200 bodies 

66 Bushing

NPS 6, 8 x 6, 12 x 6, 8 /

                DN 150, 200 x 150, 300 x 150, 200 bodies 

67 Nipple, Pipe, NPT,

 

NPS 6, 8 x 6, 12 x 6, 8 /

    DN 150, 200 x 150, 300 x 150, 200 bodies 

68 Elbow, FNPT, Pipe, All sizes

69 Adaptor,

150 x 100 and 200 x 100 bodies only

GE13860X012

1C782526012

1H724028992 

1C379026232

1C488226232 

- - - - - - - - - - -

GE19749X012

Pounds to Pounds (161EB Series Pilots)

Monitor System Mounting Parts (Figure 23)

Key Description Part Number

 

 

 

 

 

29 Pipe Nipple, Plated steel

  NPS 1 and 1-1/4 / DN 25 and 32 bodies  

  NPS 2 / DN 50 body  

  NPS 3 / DN 80 body 

  NPS 4 / DN 100 body  

  NPS 6 / DN 150 body 

NPS 8 x 6 and 12 x 6 /

 

 

    DN 200 x 150 and 300 x 150 bodies 

  NPS 8 / DN 200 body 

38 Pipe Nipple, Plated steel

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

Pounds to Inches (161AY/161EB Series

Pilots) Monitor System Mounting Parts

(Figure 24)

Key Description

38 Pipe Nipple, Galvanized Steel

45 Bushing, Plated Steel (2 required)

138 Pipe Nipple, Galvanized Steel

139  Coupling, Steel 

140 Bushing, Plated Steel

141 Pipe Nipple, Galvanized Steel

Part Number

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

Pre-piped Pilot Supply (Figure 25)

Key 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 

60  Elbow, for use without Type 252 filter 

 

61  Tubing Connector, for use without 

  Type 252 filter (1 required with Type 252, 

2 required without Type 252)

Steel

Stainless Steel

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

Key Description

 

 

 

62 Tubing, Stainless steel

68  External Elbow, for use with Type 252 filter

Steel

Stainless Steel

81  Nipple, for mounting Type 252 filter 

NPS 1, 2, 3 and 4 /

    DN 25, 50, 80 and 100 bodies  

NPS 6, 8 x 6 and 12 x 6 /

    DN 150, 200 x 150 and 300 x 150 bodies 

  NPS 8 / DN 200 body 

Part Number

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

- - - - - - - - - - -

PRX Series Pilots (Figure 26)

Key Description Part Number

Parts Kits

Elastomer Parts Kits (includes keys: 4, 5, 14, 17, 

18, 25 and 28)

Types PRX/120 , PRX/120-AP, PRX/125

and PRX/125-AP

Nitrile (NBR)

Fluorocarbon (FKM)

Adjusting Screw 1

2 

3 

Locknut  

Cap 

4*  Upper Cover O-ring  

5* O-ring

6 Upper Spring Seat

Spring 7

8 

9 

Upper Cover  

Lower Spring Seat  

10 Machine Screw

11 Washer (14 required)

12 Filter

13  Upper Diaphragm Plate (2 required) 

14*  Diaphragm  

15  Lower Diaphragm Plate  

16 Body

17*  Orifice O-ring  

18*  Lower Cover O-ring  

19  Orifice  

20 Nut

21  Lower Cover  

22* Pad Holder

Polyurethane (PU)

Fluorocarbon (FKM)

23 Stem

24 Nameplate

25* Stem O-ring

26  Upper Diaphragm Nut  

27  Damper Adjusting Screw with Hole 

28*  Restrictor/Damper O-ring  

29 Plate

29  Damper/Restrictor Plate

Types PRX/120 and PRX/120-AP

Types PRX/125 and PRX/125-AP

30 Ring Nut (2 required)

31 Nameplate Screw

32 Restrictor Adjusting Screw with Hole

33 Plug (Types PRX/125 and PRX/125-AP Only)

34 Plug (Types PRX/125 and PRX/125-AP Only)

35 Spring Barrel Extension for AP

RPRX00X0N12

RPRX00X0F12

M0253340X12

M5036008X12

M0253350X12

See Parts Kits

See Parts Kits

M0253360X12

See Table 2

M0298540X12

M0253380X12

M5011018X12

M5055001X12

M4500367X12

M0253390X12

See Parts Kits

M0253410X12

M0253310X12

See Parts Kits

See Parts Kits

M0253440X12

M5002004X12

M0298600X12

M0253400X12

M0279950X12

M0253430X12

- - - - - - - - - - -

See Parts Kits

M5028005X12

M0253480X12

See Parts Kits

GD25440X012

M0254400X12

M0257930X12

M0253490X12

M5061001X12

M0253480X12

M0257920X12

M4500328X12

M0274100X12

*Recommended Spare Part

30

121

126

66

67

Type EZR

TOP PLUG (KEY 5)

O-RING (KEY 14)

O-RING (KEY 70)

DIAPHRAGM (KEY 9)

21

17

2

20

19

14

70

11

10

5

7

71

19B2408

BOTTOM PLUG (KEY 11)

O-RING (KEY 10)

LOCK WASHER (KEY 130)

SOCKET HEAD SCREW (KEY 129)

70

11

10

5

7

21

20

19

17

2

14

71

NPS 1, 1-1/4 x 1 AND 2 x 1 / DN 25, 32 x 25 AND 50 x 25

DIAPHRAGM ASSEMBLY

22

15

4

1

6

18

16

64

12

28

79

121

126

23

9

13

8

6

18

22

15

4

16

64

12

28

9

79

121

13

8

126

1

23

49B5067

MAIN VALVE ASSEMBLY FOR NPS 6, 8 x 6 AND 12 x 6 /

DN 150, 200 x 150 AND 300 x 150 BODY SIZES

NPS 2 x 1 / DN 50 x 25 MAIN VALVE ASSEMBLY

133

131

121

67

132

121

126

66

67

66

67

NPS 8 x 6 / DN 200 x 150 RESTRICTOR PLATE O-RING PLACEMENT

Figure 14. Type EZR Main Valve

66

67

31

Type EZR

143

144

14

9

11

7

8

L

40C3570-C

APPLY LUBRICANT (L)

PARTS NOT SHOWN: 63

21

22

2

16

17

142

28

L

L

18

24

26

MAIN VALVE ASSEMBLY FOR NPS 8 / DN 200 BODY

Figure 14. Type EZR Main Valve (continued)

137

70

64

12

15

5

1

23

L

10

13

19

L

136

47

25

4

20

19

L

6

32

Type EZR

24

26

B2617_A2

Figure 15. Type EZR Nameplate and Flow Arrow

3

25

B2617_C

Figure 16. Type EZR Restricted Trim

72

71

8

23

B2617_D

Figure 17. Type EZR Cage O-ring Placement

19

3

19

3

B2617_E

NPS 1, 1-1/4 x 1, 2 x 1, 2, 3 AND 4 /

DN 25, 32 x 25, 50 x 25, 50, 80 AND 100 BODY SIZES

NPS 6 x 4, 8 x 4, 6, 8 x 6, 12 x 6 /

DN 150 x 100, 200 x 100, 150, 200 x 150, 300 x 150 BODY SIZES

Figure 18. Type EZR Travel Indicator Plug Option

33

Type EZR

8

9

38

10

7

4

6

11

12

TYPE 161EB PILOT

16

17

L

2

18

1

15 L

3

37B1199

APPLY LUBRICANT (L)

37B1193

38

L

8

9

11

12

7

22

4

6

TYPE 161EBM PILOT

Figure 19. 161EB Series Pilots

2

18

1

15

3

16

17

L

19

L

34

Type EZR

31B5012-A

SENSE

(CONTROL)

PORT

19

22

19

22

1

SENSE

(EXHAUST)

PORT

TYPE 161EBM PILOT

Figure 19. 161EB Series Pilots (continued)

1

Table 15. 161EB Series Pilot Part Numbers (keys 7, 8, 9, 10 and 11, Figure 19)

KEY

PART

NAME 5 to 15 psig /

0.34 to 1.0 bar

White

OUTLET (CONTROL) PRESSURE RANGE AND SPRING COLOR CODE

10 to 40 psig /

0.69 to 2.8 bar

Yellow

Type 161EB or 161EBM

30 to 75 psig /

2.1 to 5.2 bar

Black

70 to 140 psig /

4.8 to 9.7 bar

Green

130 to 200 psig /

9.0 to 13.8 bar

Blue

200 to 350 psig /

13.8 to 24.1 bar

Red

7

8

9

10

Diaphragm Assembly, 

Nitrile (NBR)

Diaphragm Assembly, 

Fluorocarbon (FKM)

Spring Seat

Spring

Diaphragm Limiter

17B9055X022

17B9055X062

(1)

(1)

17B0515X012

17B1260X012

- - - - - - - - - - -

17B9055X022

17B9055X062

(1)

(1)

17B0515X012

17B1262X012

- - - - - - - - - - -

17B9055X022

17B9055X062

(1)

(1)

17B0515X012

17B1259X012

- - - - - - - - - - -

17B9055X022

17B9055X062

(1)

(1)

17B0515X012

17B1261X012

- - - - - - - - - - -

17B9055X022

17B9055X062

(1)

(1)

17B0515X012

17B1263X012

- - - - - - - - - - -

11 Adjusting Screw 10B3081X012 10B3081X012 10B3081X012 10B3081X012 10B3081X012

1. Standard assembly for stainless steel construction; 1/32 in. / 0.8 mm thick diaphragm and 1-3/4 in. / 45 mm diaphragm plate diameter.

2. Standard assembly for stainless steel construction; 1/32 in. / 0.8 mm thick diaphragm and 1-1/2 in. / 38 mm diaphragm plate diameter.

3. Should only be used as the intermediate reduction pilot on the Type EZR worker/monitor systems.

17B9055X032

17B9055X052

(2)

(2)

17B0515X012

17B1264X012

10B4407X012

10B3080X012

Type 161EB (3)

30 to 300 psig /

2.1 to 20.7 bar

Green

17B9055X032 (2)

17B9055X052 (2)

19B9059X012

15A9258X012

10B4407X012

17B1227X012

35

Type EZR

B2631

49

40

48

27

10

4

8

16

7

17

14

18

50

11

1

26

47

46

24

TYPE 161AY

30

38

37

21

12

55

39

56

35

3

6

25

22

13

5

15

31

33

36

B2632

2

B2631

Figure 20. Types 161AY and 161AYM Pilots

TYPE 161AYM

Type EZR

TYPE 252

13

TYPE PRX

40C1205

1

21

63

69

TYPE PRX PILOT

NOTE:

1 NPS 4 / DN 100 BODY ONLY

MOUNTING FOR NPS 1 THROUGH 4 /

DN 25 THROUGH 100 TYPE EZR REGULATOR

RU

2

N

4

6

STAR

T

21

14

24

22

20B4393-A

APPLY LUBRICANT

Figure 21. Type 112 Restrictor

NPS 1 / DN 25 ONLY

OR

4 73

50

29

TYPE 112

41B3471

45

46

47

48

49

TYPE 161AY

OR 161AYM

TYPE 161AY PILOT

MOUNTING FOR NPS 1 THROUGH 6 /

DN 25 THROUGH 150 TYPE EZR REGULATOR

23

GE18431

TYPE 252

13

TYPE PRX

TYPE PRX PILOT

MOUNTING FOR NPS 6 AND 8 / DN 150 AND 200

TYPE EZR REGULATOR

64

65

66

67

21

TYPE 112

29

45

46

47

41B3471

48

NPS 1 / DN 25 ONLY

OR 4 73

50

TYPE 161AY PILOT

MOUNTING FOR NPS 8 / DN 200

TYPE EZR REGULATOR

Figure 22. Types PRX and 161AY Pilot Mounting Parts

49

TYPE 161AY

OR 161AYM

37

Type EZR

29 38

B2612

Figure 23. Pounds to Pounds (161EB Series Pilots) Working Monitor Mounting Parts

38

TYPE 399A

OR EZR

50

TYPE 161EB

OR 161EBM

PILOT

81

68

62

29

TYPE 112

45

46

47

48

41B5009

Figure 24. Pounds to Inches (161AY/161EB Series Pilots)

Monitor System Mounting Parts

38

45

TYPE 161AYM

TYPE 252

61

37B8952

Figure 25. Pre-piped Type EZR with Type 161EB Pilot,

Type 112 Restrictor and Type 252 Pilot Supply Filter

Type EZR

S - SUPPLY PORT

B - BLEED PORT

L - LOADING PORT

A - SENSING PORT

D - DAMPER

R - RESTRICTOR

4

35

4

TYPE PRX/120-AP OR PRX/125-AP

S

11

10

22

21

24

23

26

11

18

25

20 11 13

TYPE PRX/120 OR PRX/125

19

17

14

18

13

14

15

10

11

12

16

6

7

8

9

4

5

1

2

3

L

27

28

B

29

32

28

R

30

TYPE PRX/120 OR PRX/120-AP

D

31

30

Figure 26. PRX Series Pilot Assembly

S

L

33

27

28

34

TYPE PRX/125 OR PRX/125-AP

31

28

B

29

D

30

39

Type EZR

[email protected]

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Regulator Technologies

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T +1 800 558 5853

+1 972 548 3574

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T +39 051 419 0611

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