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Instruction Manual
D101642X012
™
Fisher
ENVIRO-SEAL
Sliding-Stem Valves
Contents
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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
shown in the specifications. For higher pressure/temperature ratings, refer to the HIGH-SEAL ULF Live-Loaded Packing
System instruction manual, D101453X012.
Do not install, operate, or maintain ENVIRO-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
Business Partner before proceeding.
www.Fisher.com
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™
Packing System for
Figure 1. Fisher easy-e Valve Bonnet with
ENVIRO-SEAL Packing
1
1
2
3
7
7
7
PACKING
8
FLANGE
8
8
PACKING
8
FOLLOWER
VALVE
BONNET
W5814-1*
ENVIRO-SEAL Sliding-Stem Valves
Emerson sales office
July 2017
VALVE
STEM
BELLEVILLE
SPRINGS
or Local
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Table of Contents
Related Manuals for Emerson Fisher Enviro-Seal Series
Summary of Contents for Emerson Fisher Enviro-Seal Series
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Page 1: Table Of Contents
If you have any questions about these instructions, contact your Emerson sales office or Local Business Partner before proceeding. -
Page 2: Description
1. For availability of ENVIRO-SEAL packing system with a specific valve, please contact your Emerson sales office or Local Business Partner. 2. The pressure/temperature limits in this manual, in the valve literature, and any applicable code or standard limitation, should not be exceeded. -
Page 3: Installation
Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 July 2017 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 - - - - - - 1. Contact your Emerson 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.
- Page 5 Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 July 2017 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.
- Page 6 Instruction Manual ENVIRO-SEAL Sliding-Stem Valves July 2017 D101642X012 Table 7. Graphite ULF Packing Torque STEM SIZE TORQUE Inch lbfSin lbfSft 12.7 19.1 25.4 31.8 1-1/4 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.
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Page 7: Tightening Procedures
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 sales office or Local Business Partner for technical assistance. When ordering replacement... -
Page 8: Retrofit Kits
WARNING Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions 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. - Page 9 Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 July 2017 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) 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 July 2017 D101642X012 Figure 7. ENVIRO-SEAL Graphite ULF Packing for Fisher easy-e Valves ANTI-SEIZE LUBRICANT STUD PACKING NUT SPRING PACK ASSEMBLY GUIDE BUSHING PACKING FLANGE PACKING WASHER PACKING RING GUIDE BUSHING PACKING RING PACKING BOX RING 39B4612-A...
- Page 11 Instruction Manual ENVIRO-SEAL Sliding-Stem Valves D101642X012 July 2017 Figure 8. Copy of TÜV Certificate...
- Page 12 Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user. Fisher, ENVIRO-SEAL, and easy-e are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co.