Emerson Fisher Easy E Ed Instruction Manual

2015-03-30

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FisherrENVIRO-SEAL™ Packing System for

Sliding-Stem Valves

Contents

Introduction 1.................................

Scope of Manual 1.............................

Description 2.................................

Installation 3..................................

Tightening Procedures 7.......................

Other Considerations 7..........................

Parts Ordering 7................................

Retrofit Kits 8..................................

easy-e™,A,EH,HP,YD,YSRetrofitKits 8..........

Repair Kits 8...................................

easy-e,A,EH,HP,YD,YSRepairKits 8............

Figure 1. Fisher easy-e Valve Bonnet with

ENVIRO-SEAL Packing

VALVE

BONNET

BELLEVILLE

SPRINGS

VALVE

STEM

PACKING

FLANGE

PACKING

FOLLOWER

W5814-1*

Introduction

Scope of Manual

This instruction manual includes installation and parts information for Fisher ENVIRO-SEAL live-loaded packing systems

(see figure 1). These systems are available for Fisher sliding-stem valves with 9.5, 12.7, 19.1, 25.4, 31.8, and 50.8 mm

(3/8,1/2,3/4,1,1-1/4, and 2 inch) diameter stems. The system can be used with many sliding-stem valves as shown in

the Applications section of the Specifications. Refer to appropriate valve and actuator instruction manuals for

necessary information relating to the disassembly and assembly of the valve and actuator. ENVIRO-SEAL packing

systems for sliding-stem valves utilize a Belleville (coned-disk) spring system in the pressure/temperature ranges

showninthespecifications.For higher pressure/temperature ratings, refer to the HIGH-SEAL ULF Live-Loaded Packing

System instruction manual, D101453X012.

Donotinstall,operate,ormaintainENVIRO-SEAL live-loaded packing systems without being fully trained and qualified

in valve, actuator, and accessory installation, operation, and maintenance. To avoid personal injury or property

damage, it is important to carefully read, understand, and follow all the contents of this manual, including all safety

cautions and warnings. If you have any questions about these instructions, contact your Emerson Process

Management sales office before proceeding.

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Table 1. Specifications

Applicable Product Types and Stem Diameters

See tables 2 and 3

TÜV Certification

TÜV has certified the stem sealing capabilities of

ENVIRO-SEAL PTFE and GraphiteULFpackingsystems

for sliding-stem valves with TA Luft emission control

requirements. See figures8and9forcopiesofthese

certificates

Pressures and Temperatures(2)

See figure 2. Figure 2 applies only to ENVIRO-SEAL

packing for 100 ppm service. Pressure and

temperature ratings for non-environmental service

are in the packing bulletins. See the appropriate valve

instruction manual for additional pressure and

temperature ratings.

1. For availability of ENVIRO-SEAL packing system with a specific valve, please contact your Emerson Process Management sales office.

2. The pressure/temperature limits in this manual, in the valve literature, and any applicable code or standard limitation, should not be exceeded.

Figure 2. Applications Guidelines for 100 ppm Service

A6142-1

NOTE:

FOR MAXIMUM CYCLE LIFE, GRAPHITE ULF PACKING SHOULDBE USED IN SERVICES WHERE THE VAST MAJORITY OF THE VALVE CYCLES OCCUR AT TEMPERATURES

OF 150_C(300_F) OR GREATER.

ENVIRO-SEAL GRAPHITE ULF AND

HIGH-SEAL GRAPHITE ULF

ENVIRO-SEAL DUPLEX

ENVIRO-SEAL PTFE

Description

ENVIRO-SEAL packing systems, with exceptional sealing capabilities, can be easily installed into your existing valves or

can be purchased with new valves. These systems help seal your process to conserve valuable fluids, and protect the

environment against the emission of hazardous or polluting liquids and gases. The external live-loading provides a

constant load over the life of the packing material, which reduces your need for packing box adjustment and

maintenance.

If the piping and valve are insulated, do not allow insulation to extend above the yoke boss surface, covering the

ENVIRO-SEAL packing arrangement. Keep the ENVIRO-SEAL packing arrangement exposed to ambient air conditions.

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Installation

ENVIRO-SEAL packing systems are designed for quality performance over extended periods. This longevity allows for

packing maintenance to be performed as it should be, at regularly scheduled plant outages or turn-arounds.

Use these instructions to install ENVIRO-SEAL packing in valves that have standard packing or when inspecting or

replacing ENVIRO-SEAL packing.

If you are changing the packing system material to a different material, such as PTFE to Graphite ULF, it is good

practice to review actuator sizing, as packing friction will change. See tables 4, 5, and 6 for information on packing

friction.

WARNING

Avoid personal injury from sudden release of process pressure or uncontrolled movement of parts. Before performing any

maintenance operations:

DDo not remove the actuator from the valve while the valve is still pressurized.

DAlways wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal

injury.

DDisconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the

actuator cannot suddenly open or close the valve.

DUse bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure

from both sides of the valve. Drain the process media from both sides of the valve.

DVent the power actuator loading pressure and relieve any actuator spring precompression.

DUse lock-out procedures to be sure that the above measures stay in effect while you work on the equipment.

DThe valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the

pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when

loosening the packing box pipe plug.

DCheck with your process or safety engineer for any other hazards that may be present from exposure to process media.

Figure 3. ENVIRO-SEAL Packing Assembly Procedure

A6143

HEX NUT

PACKING

FLANGE

STUD

ALTERNATE FROM ONE HEX NUT TO

THE OTHER AS YOU TIGHTEN

THESE TWO SURFACES MUST REMAIN PARALLEL

AS YOU TIGHTEN THE HEX NUTS

BONNET

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Table 2. Fisher Sliding-Stem Product Availability for ENVIRO-SEAL Duplex Packing

VALVE

(1)

STEM DIAMETER, mm (INCHES)

9.5

(3/8)

12.7

(1/2)

15.9

(5/8)

19.1

(3/4)

25.4

(1)

31.8

(1-1/4)

50.8

(2)

A X X --- X X X ---

DBQ --- X--- X X X ---

easy-e(ED,ES,

ET, EW, EZ) X X --- X X X ---

EH --- X--- X X X X

FB --- --- --- --- X X X

HP --- X--- X X X ---

HS --- X--- X X --- ---

SS-83 --- --- --- X X X ---

YD X X --- X X X ---

YS X X --- X X X ---

1. Contact your Emerson Process Management sales office for valves not listed.

Table 3. Fisher Sliding-Stem Product Availability for ENVIRO-SEAL PTFE and Graphite ULF Packing Systems

VALVE

(1)

STEM DIAMETER, mm (INCHES) STEM DIAMETER,

9.5

(3/8)

12.7

(1/2)

15.9

(5/8)

19.1

(3/4)

25.4

(1)

31.8

(1-1/4)

50.8

(2) 12 mm 16 mm

A X X --- X X X --- --- ---

CAV4 --- --- --- X X X X --- ---

D--- X--- --- --- --- --- --- ---

DA --- X--- --- --- --- --- --- ---

DBQ --- X--- X X X --- --- ---

DBQ-NS --- X--- --- --- --- --- --- ---

easy-e(ED,

ES, ET, EW,

EZ)

X X --- X X X --- --- ---

E-NS --- X--- --- --- --- --- --- ---

EH --- X--- X X X X --- ---

ENA --- --- --- --- --- X X --- ---

ET-C--- X--- X X --- --- --- ---

EWT-C--- X--- X X --- --- --- ---

EZ-C X X --- X--- --- --- --- ---

FB --- --- --- --- X X X --- ---

HP --- X--- X X X --- --- ---

HS --- X--- X X --- --- --- ---

SS-79 --- --- --- X--- --- --- --- ---

SS-83 --- --- --- X X X X --- ---

SS-85 --- X--- --- --- --- --- --- ---

SS-95 --- X--- --- --- --- --- --- ---

SS-98 --- --- --- --- X--- --- --- ---

YD X X --- X X X --- --- ---

YS X X --- X X X --- --- ---

1. Contact your Emerson Process Management sales office for valves not listed.

If you are installing the system in a valve that is still connected to an actuator, remove the actuator from the valve to

provide sufficient space to install the packing assembly. If a spring-return actuator is used, it is possible that

disconnecting the stem connector will allow the spring to force the actuator to the end of its travel. Be sure the

actuator spring is resting on its travel stop. Refer to the appropriate valve and actuator instruction manuals to remove

the actuator.

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Remove old packing parts from the packing box by using the valve instruction manual procedures. Both the valve stem

surface condition and the packing bore are critical in obtaining a good seal. If the valve stem surface is scratched,

nicked,orworn,replacethevalvestembeforeinstallingtheENVIRO-SEAL Packing System. Check the condition of the

packing bore and clean or hone it out, as necessary. Refer to the appropriate valve instruction manual to replace the

valve stem.

Figure 4. Belleville Spring Stacking Order

7SPRINGS

PACKING

FOLLOWER

9SPRINGS

PACKING

FOLLOWER

easy-ePTFE&DUPLEX

PACKING easy-e GRAPHITE ULF

PACKING

A6144

Table 4. Packing Friction with ENVIRO-SEAL PTFE Packing

VALVE STEM DIAMETER PTFE PACKING

mm Inches Newtons Pounds (Force)

9.5

12.7

19.1

25.4

31.8

50.8

3/8

1/2

3/4

1-1/4

555

755

1110

1515

1890

3220

125

170

250

340

425

725

Table 5. Packing Friction with ENVIRO-SEAL Duplex Packing

VALVE STEM DIAMETER DUPLEX PACKING

mm Inches Newtons Pounds (Force)

9.5

12.7

19.1

25.4

31.8

50.8

3/8

1/2

3/4

1-1/4

555

755

1110

1515

1890

3220

125

170

250

340

425

725

Table 6. Packing Friction with ENVIRO-SEAL Graphite ULF Packing

VALVE STEM DIAMETER GRAPHITE ULF PACKING

mm Inches Newtons Pounds (Force)

9.5

12.7

19.1

25.4

31.8

50.8

3/8

1/2

3/4

1-1/4

935

1250

2350

3740

4800

6000

210

280

530

840

1100

1350

For key number locations refer to figures5,6,or7.Thenproceedasfollows:

1. The original packing flange studs used for standard packing arrangements should be long enough to accommodate

the retrofit kit parts. If you determine that the existing studs and nuts should be replaced however, due to their

condition, replace them with the studs and nuts (keys 200 and 212) supplied in the retrofit kit.

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Table7.GraphiteULFPackingTorque

(1)

STEM SIZE TORQUE

mm Inch NSmlbfSin lbfSft

9.5 3/8 4.3 38 3.2

12.7 1/2 8.5 76 6.3

19.1 3/4 21 187 16

25.4 147 420 35

31.8 1-1/4 56 495 41

1. For A, DBQ, easy-e,EH,FB,HP,YD,andYSvalves.

CAUTION

To prevent product damage caused by scratching or damaging the packing box wall, take care when removing the old

packing parts from the packing box.

2. Carefully remove the old packing parts from the packing box. If the valve stem or packing box wall is scratched or

damaged, it can cause excessive leakage. If the valve stem needs to be replaced, or any other valve part, refer to the

appropriate valve instruction manual for replacement procedures. Complete all valve maintenance before installing

the ENVIRO-SEAL packing system into the bonnet.

Note

ENVIRO-SEAL PTFE packing systems can be used in either vacuum or positive pressure service. It is not necessary to reverse

ENVIRO-SEAL packing components in vacuum service.

Note

Ensure that the Belleville springs are stacked properly (see figure 4) and packing box parts are assembled in the correct order (see

figures 5, 6, or 7). Packing parts cannot function properly if the Belleville springs or other packing parts are not stacked correctly.

3. Use figures 5, 6, or 7 to ensure that the packing parts and spring pack are assembled in the correct order. Install the

ENVIRO-SEAL packing parts into the packing box.

4. Install the spring pack assembly (key 217), with the attached springs, onto the stem.

5. Install the packing flange (key 201) and packing box nuts (key 212). Hand tighten them.

Note

In general, the following tightening procedure applies to all ENVIRO-SEAL packing systems--both sliding-stem and rotary.

Note

Lubrication is required for the packing studs and nuts.

Although it is important to properly lubricate the stud threads and internal nut threads, it is also important to properly lubricate

the contacting face of the nut. See figures 5, 6, or 7 for lubrication locations.

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Tightening Procedures

1. You will obtain maximum benefit from your ENVIRO-SEAL packing system when you tighten the packing flange nuts

and compress the Belleville springs to their “target load”. The target load is the point where the Belleville springs

are designed for optimum performance, when they are compressed to 85% of their maximum deflection, or nearly

flat. (Maximum deflection is when the springs are 100% compressed, or completely flat.)

To obtain the target load of 85% compression of maximum deflection, perform the following:

DTighten the packing flange nuts alternately and evenly, keeping the packing flange parallel with the valve flange

(see figure 3), until the Belleville springs are compressed 100% (or completely flat), as detected by a rapid increase

in nut torque.

DForPTFEorDuplexpacking,looseneach packing flange nut 1/2 turn (180_of rotation).

DFor Graphite ULF packing, loosen each packing flange nut 1/4 turn (90_of rotation).

The “target load” of 85% compression has now been reached.

2. Refer to the appropriate valve and actuator instruction manuals when connecting the valve to the actuator. Under

normal conditions, the packing nuts should not require retightening.

However, when servicing, if the springs do not remain at the target load of 85% compression, retighten the packing

box nuts according to step 1 above.

3. The “springs flat” procedure described above in steps 1 and 2 of Tightening Procedures is the preferred method of

adjusting ENVIRO-SEAL packing. However, for Graphite ULF packing, the torque values in table 7 can also be used as

a guideline for 85% spring compression. These values are based on generous lubrication of the packing studs and

nuts with anti-seize lubricant. Loosening of the packing flange nuts is not required when these torques are used.

Other Considerations

When retrofitting an existing packing system or repacking a valve with ENVIRO-SEAL packing that has been in service,

check the condition of the packing bore after you have removed the packing. An easy method for cleaning debris and

minor imperfections from the bore is to use a brake cylinder hone attached to an electric drill. This method will do a

good job of cleaning the packing bore without changing the dimension of the bore.

When you have completed this exercise, a good guideline to use in checking the condition of the packing bore is the

20/20 rule. If less than 20% of the surface area of the bore is pitted and if there are no pits deeper than 0.020 inch, then

your packing should work as designed. This does not need to be an exact measurement; visual inspection is adequate.

If the packing bore does not meet this criteria, however, you should replace the bonnet.

Note

This check is only valid for rotary ENVIRO-SEAL packing systems and sliding-stem ENVIRO-SEAL or HIGH-SEAL packing systems.

Parts Ordering

Each valve assembly is assigned a serial number that can be found on the valve body. Refer to this serial number when

contacting your Emerson Process Management sales office for technical assistance. When ordering replacement parts,

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

refer to this serial number and to the part description and part number from the following parts list. When ordering

replacement parts, refer to the serial number and to the 11-character part number for each part required from the

following parts list.

WARNING

Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Process Management should

not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the

performance of the valve, and could cause personal injury and property damage.

Retrofit Kits

Stems and packing box constructions that do not meet Emerson Process Management stem finish specifications,

dimensional tolerances, and design specifications, may adversely alter the performance of this packing kit.

easy-e, A, EH, HP, YD, and YS Retrofit Kits

Retrofit kits include parts to convert existing easy-e,A,EH,HP,YD,andYSvalvestotheENVIRO-SEAL packing box

construction. See table 3 for a complete listing of ENVIRO-SEAL packing systems for sliding-stem valves. PTFE kits

include keys 200, 201, 211, 212, 214, 215, 217, 218, tag, and tie cable. Graphite ULF kits include keys 200, 201, 207,

208, 209, 210, 211, 212, 214, 216, 217, tag, and tie cable. Duplex kits include keys 200, 201, 207, 209, 211, 212, 214,

215, 216, 217, tag, and tie cable.

Fisher easy-e, A, EH, HP, YD, and YS Retrofit Kits

STEM DIAMETER YOKE BOSS DIAMETER KITS

PACKING MATERIAL

mm (Inch) mm (Inch) Double PTFE (carbon-filled) Single Graphite ULF Duplex

9.5 (3/8)

12.7 (1/2)

19.1 (3/4)

25.4 (1)

31.8 (1-1/4)

54 (2-1/8)

71 (2-13/16)

90 (3-9/16)

127 (5)

127 (5, 5H)

RPACKXRT012

RPACKXRT022

RPACKXRT032

RPACKXRT042

RPACKXRT052

RPACKXRT262

RPACKXRT272

RPACKXRT282

RPACKXRT292

RPACKXRT302

RPACKXRT212

RPACKXRT222

RPACKXRT232

RPACKXRT242

RPACKXRT252

Repair Kits

Stems and packing box constructions that do not meet Emerson Process Management stem finish specifications,

dimensional tolerances, and design specifications, may adversely alter the performance of this packing kit.

easy-e, A, EH, HP, YD, and YS Repair Kits

Repair kits include parts to replace the “soft” packing materials in valves that already have ENVIRO-SEAL packing

arrangements installed or in valves that have been upgraded with ENVIRO-SEAL retrofit kits. PTFE repair kits include

keys 214, 215, and 218. Graphite ULF repair kits include keys 207, 208, 209, 210, and 214. Duplex repair kits include

keys 207, 209, 214, and 215.

Fisher easy-e, A, EH, HP, YD, and YS Repair Kits

STEM DIAMETER YOKE BOSS DIAMETER KITS

PACKING MATERIAL

mm (Inch) mm (Inches) Double PTFE (carbon-filled) Single Graphite ULF Duplex

9.5 (3/8)

12.7 (1/2)

19.1 (3/4)

25.4 (1)

31.8 (1-1/4)

54 (2-1/8)

71 (2-13/16)

90 (3-9/16)

127 (5)

127 (5, 5H)

RPACKX00192

RPACKX00202

RPACKX00212

RPACKX00222

RPACKX00232

RPACKX00592

RPACKX00602

RPACKX00612

RPACKX00622

RPACKX00632

RPACKX00292

RPACKX00302

RPACKX00312

RPACKX00322

RPACKX00332

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Figure 5. PTFE Sliding-Stem ENVIRO-SEAL Packing for Fisher easy-e Valves

A6146-1

ANTI-SEIZE LUBRICANT

STUD

LANTERN RING

PACKING SET

PACKING BOX RING

PACKING NUT

PACKING FLANGE

ANTI-EXTRUSION WASHERS

LOWER WIPER

SPRING PACK ASSEMBLY

(KEY 217) 217

Figure 6. ENVIRO-SEAL Duplex Packing for Fisher easy-e Valves

200

212

201

215

216

207

209

211

217

207

214

213

PACKING NUT

PACKING FLANGE

PACKING WASHER

SPRING PACK ASSEMBLY

ANTI-SEIZE LUBRICANT

STUD

LANTERN RING

PACKING SET

PACKING BOX RING

GUIDE BUSHING

PACKING RING

GUIDE BUSHING

24B9310

A6722

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Figure 7. ENVIRO-SEAL Graphite ULF Packing for Fisher easy-e Valves

39B4612-A

PACKING FLANGE

STUD

PACKING NUT

PACKING RING

PACKING BOX RING

ANTI-SEIZE LUBRICANT

SPRING PACK ASSEMBLY

GUIDE BUSHING

PACKING WASHER

GUIDE BUSHING

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Figure 8. Copy of TÜV Certificate

Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

April 2012

Figure 9. Copy of TÜV Certificate

Emerson Process Management

Marshalltown, Iowa 50158 USA

Sorocaba, 18087 Brazil

Chatham, Kent ME4 4QZ UK

Dubai, United Arab Emirates

Singapore 128461 Singapore

www.Fisher.com

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they arenot

to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are

governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such

products at any time without notice.

Fisher, ENVIRO-SEAL, and easy-e are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co.

Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property

of their respective owners.

Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance

of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.

Emerson Fisher Easy E Ed Instruction Manual

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