Emerson Fisher Enviro-Seal Graphite ULF Series Instrukcja obsługi
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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
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