Instruction Manual
Instruction Manual
D101642X012
ENVIRO-SEAL Sliding-Stem Valves
April 2012
4
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,
mm
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, i t 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 i ts travel stop. Refer to the appropriate valve and actuator instruction manuals to remove
the actuator.