Instruction Manual

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Fisherr ENVIRO-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 u sed 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

Summary of content (12 pages)

PAGE 1
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 April 2012 Fisherr ENVIRO-SEAL™ Packing System for Sliding-Stem Valves Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tightening Procedures . . . . . . . . . . . . . . . .
PAGE 2
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves April 2012 D101642X012 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 Graphite ULF packing systems for sliding-stem valves with TA Luft emission control requirements. See figures 8 and 9 for copies of these certificates Pressures and Temperatures(2) See figure 2.
PAGE 3
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 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.
PAGE 4
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves April 2012 D101642X012 Table 2. Fisher Sliding-Stem Product Availability for ENVIRO-SEAL Duplex Packing STEM DIAMETER, mm (INCHES) VALVE (1) 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.
PAGE 5
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 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, or worn, replace the valve stem before installing the ENVIRO-SEAL Packing System. Check the condition of the packing bore and clean or hone it out, as necessary.
PAGE 6
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves April 2012 D101642X012 Table 7. Graphite ULF Packing Torque(1) STEM SIZE TORQUE mm Inch NSm lbfSin 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 1 47 420 35 31.8 1-1/4 56 495 41 1. For A, DBQ, easy-e, EH, FB, HP, YD, and YS valves. 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.
PAGE 7
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 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.
PAGE 8
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves April 2012 D101642X012 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.
PAGE 9
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 April 2012 Figure 5. PTFE Sliding-Stem ENVIRO-SEAL Packing for Fisher easy-e Valves ANTI-SEIZE LUBRICANT PACKING NUT PACKING FLANGE STUD SPRING PACK ASSEMBLY (KEY 217) 217 LANTERN RING PACKING SET ANTI-EXTRUSION WASHERS PACKING BOX RING LOWER WIPER A6146-1 Figure 6.
PAGE 10
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves April 2012 D101642X012 Figure 7.
PAGE 11
Instruction Manual D101642X012 ENVIRO-SEAL Sliding-Stem Valves April 2012 Figure 8.
PAGE 12
ENVIRO-SEAL Sliding-Stem Valves April 2012 Instruction Manual D101642X012 Figure 9. Copy of TÜV Certificate 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.