Emerson Fisher Enviro-Seal Duplex Series Instruction Manual Download Page 4 | Manualshive

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Instruction Manual

D101642X012

ENVIRO-SEAL Sliding-Stem Valves

July 2017

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 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 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.

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Summary of Contents for Fisher Enviro-Seal Duplex Series

Page 1: ...tions 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 t...

Page 2: ...iterature 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 SHOULD BE 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 Des...

Page 3: ...perations to avoid personal injury D Disconnect 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 D Use 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 th...

Page 4: ...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 sales office for valves not listed If you are installing the system in a valve that is s...

Page 5: ...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 1 4 2 555 755 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 1 4 2 555 755 1110 1515 1890 3220 125 170 250 340 425 725 Table 6 Packing Friction with ENVIRO SEA...

Page 6: ...acuum 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 o...

Page 7: ...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 Co...

Page 8: ... 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 RPACKX...

Page 9: ...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 200 212 201 215 216 207 209 211 217 207 207 207 214 213 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 GUIDE BUSHING GU...

Page 10: ... Valves July 2017 10 Figure 7 ENVIRO SEAL Graphite ULF Packing for Fisher easy e Valves 39B4612 A PACKING FLANGE STUD PACKING NUT PACKING RING PACKING RING PACKING BOX RING ANTI SEIZE LUBRICANT SPRING PACK ASSEMBLY GUIDE BUSHING PACKING WASHER GUIDE BUSHING ...

Page 11: ...Instruction Manual D101642X012 ENVIRO SEAL Sliding Stem Valves July 2017 11 Figure 8 Copy of TÜV Certificate ...

Page 12: ...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 E 1991 2017 Fisher Controls International LLC All rights reserved 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 Emerson Automation Solutions Em...

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