Fisher ET-C, Инструкция по эксплуатации, Страница: 14 / 24

EZ-C, ET-C, and EWT-C Valves
Instruction Manual
Form 5376
August 2006
14
ENVIRO-SEAL Packing Retrofit Kits
Retrofit kits include parts to convert valves with
existing standard bonnets to the ENVIRO-SEAL
packing box construction. Refer to figure 6 for key
numbers for PTFE and Graphite ULF packing. Stems and packing box constructions that do not
meet Fisher stem finish specifications, dimensional
tolerances, and design specifications, may adversely
alter the performance of this packing kit.
ENVIRO-SEAL PACKING RETROFIT KITS
Packing Material
Stem Diameter and Yoke Boss Diameter, mm (Inches)
9.5 (3/8)
54 (2-1/8)
12.7 (1/2)
71 (2-13/16)
19.1 (3/4)
90 (3-9/16)
25.4 (1)
127 (5)
Double PTFE (Contains keys 200, 201, 211, 212,
214, 215, 216, 217, 218, tag, and cable tie)
RPACKXRT012 RPACKXRT022 RPACKXRT032 RPACKXRT042
Graphite ULF (Contains keys 200, 201, 207, 208,
209, 210, 211, 212, 214, 217, tag, and cable tie)
RPACKXRT262 RPACKXRT272 RPACKXRT282 RPACKXRT292
ENVIRO-SEAL Packing Repair Kits
Repair kits include parts to replace the ‘‘soft’’
packing materials in valves that already have
ENVIRO-SEAL packing arrangements installed or in
valves that have been upgraded with ENVIRO-SEAL
retrofit kits. Refer to figure 6 for key numbers for
PTFE and Graphite ULF packing. Stems and packing box constructions that do not
meet Fisher stem finish specifications, dimensional
tolerances, and design specifications, may adversely
alter the performance of this packing kit.
ENVIRO-SEAL PACKING REPAIR KITS
Packing Material
Stem Diameter and Yoke Boss Diameter, mm (Inches)
9.5 (3/8)
54 (2-1/8)
12.7 (1/2)
71 (2-13/16)
19.1 (3/4)
90 (3-9/16)
25.4 (1)
127 (5)
31.8 (1-1/4)
127 (5, 5H)
Double PTFE (Contains keys 214, 215, and 218) RPACKX00192 RPACKX00202 RPACKX00212 RPACKX00222 RPACKX00232
Graphite ULF (Contains keys 207, 208, 209, 210,
and 214)
RPACKX00592 RPACKX00602 RPACKX00612 RPACKX00622 RPACKX00632