ET Valve
Instruction Manual
Form 5081
June 2002
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Figure 13. Typical ENVIRO-SEAL Packing System
with Duplex Packing
A6722 / IL
Key Description Part Number
7* Packing ring, PTFE composition see following table
7* ENVIRO-SEAL bellows seal packing ring
for low chloride graphite ribbon/filament
packing arrangement
Ribbon packing ring for 9.5 mm (3/8 inch)
and size 2 with 12.7 mm (1/2 inch) stem
(4 req’d) 18A0908X012
Filament packing ring for 9.5 mm
(3/8 inch) and size 2 with 12.7 mm
(1/2 inch) stem (4 req’d) 1P3905X0172
Ribbon packing ring for size 3 and 4
with 12.7 mm (1/2 inch) stem (4 req’d) 18A0918X012
Filament packing ring for size 3 and 4
with 12.7 mm (1/2 inch) stem (4 req’d) 14A0915X042
8 Spring
8 Lantern ring
8 ENVIRO-SEAL bellows seal spring
8 ENVIRO-SEAL bellows seal spacer
10 Special washer
11* Packing Box Ring, S31600
9.5 mm (3/8-inch) stem, 1J873135072
12.7 mm (1/2-inch) stem, 1J873235072
19.1 mm (3/4-inch) stem, 1J873335072
25.4 mm (1-inch) stem, 1J873435072
31.8 mm (1-1/4 inch) stem, 1J873535072
12* Upper Wiper, felt
9.5 mm (3/8-inch) stem 1J872606332
12.7 mm (1/2-inch) stem 1J872706332
19.1 mm (3/4-inch) stem 1J872806332
25.4 mm (1-inch) stem 1J872906332
31.8 mm (1-1/4 inch) stem 1J873006332
12* ENVIRO-SEAL bellows seal upper wiper
For 9.5 mm (3/8 inch) and size 2 with 12.7 mm
(1/2 inch) stem 18A0868X012
For size 3 and 4 with 12.7 mm (1/2 inch) stem 18A0870X012
13 Packing Follower
Key Description Part Number
13* ENVIRO-SEAL bellows seal bushing
For 9.5 mm (3/8 inch) stem (1 req’d),
for size 2 with 12.7 mm (1/2 inch) stem
(2 req’d)
S31600/PTFE 18A0820X012
R30006 18A0819X012
S31600/Cr Coated 11B1155X012
For size 3 and 4 with 12.7 mm (1/2 inch)
stem (1 req’d)
S31600/PTFE 18A0824X012
R30006 18A0823X012
S31600/Cr Coated 11B1157X012
13* ENVIRO-SEAL bellows seal bushing/liner
For 9.5 mm (3/8 inch) stem (1 req’d),
for size 2 with 12.7 mm (1/2 inch) stem
(2 req’d)
N10276 bushing, PTFE/glass liner 12B2713X012
N10276 bushing, PTFE/carbon liner 12B2713X042
For size 3 and 4 with 12.7 mm (1/2 inch)
stem (1 req’d)
N10276 bushing, PTFE/glass liner 12B2715X012
N10276 bushing, PTFE/carbon liner 12B2715X042
14 Pipe Plug
14 Lubricator
14 Lubricator/Isolating Valve
15 Yoke Locknut
15 ENVIRO-SEAL bellows seal Locknut
16 Pipe Plug
16 ENVIRO-SEAL bellows seal pipe plug
20* ENVIRO-SEAL bellows seal stem/bellows assembly
1 Ply Bellows
S31603 trim mat’l, N06625 bellows mat’l
Size 1 w/ 9.5 mm (3/8 inch) stem 32B4224X012
Size 1-1/2 w/ 9.5 mm (3/8 inch) stem 32B4225X012
Size 2 w/ 12.7 mm (1/2 inch) stem 32B4226X012
Size 3 w/ 12.7 mm (1/2 inch) stem 32B4227X012
Size 4 w/ 12.7 mm (1/2 inch) stem 32B4228X012
N06022 trim mat’l, N06022 bellows mat’l
Size 1 w/ 9.5 mm (3/8 inch) stem 32B4224X022
Size 1-1/2 w/ 9.5 mm (3/8 inch) stem 32B4225X022
Size 2 w/ 12.7 mm (1/2 inch) stem 32B4226X022
Size 3 w/ 12.7 mm (1/2 inch) stem 32B4227X022
Size 4 w/ 12.7 mm (1/2 inch) stem 32B4228X022
2 Ply Bellows
S31603 trim mat’l, N06625 bellows mat’l
Size 1 w/ 9.5 mm (3/8 inch) stem 32B4224X032
Size 1-1/2 w/ 9.5 mm (3/8 inch) stem 32B4225X032
Size 2 w/ 12.7 mm (1/2 inch) stem 32B4226X032
Size 3 w/ 12.7 mm (1/2 inch) stem 32B4227X032
Size 4 w/ 12.7 mm (1/2 inch) stem 32B4228X032
N06022 trim mat’l, N06022 bellows mat’l
Size 1 w/ 9.5 mm (3/8 inch) stem 32B4224X042
Size 1-1/2 w/ 9.5 mm (3/8 inch) stem 32B4225X042
Size 2 w/ 12.7 mm (1/2 inch) stem 32B4226X042
Size 3 w/ 12.7 mm (1/2 inch) stem 32B4227X042
Size 4 w/ 12.7 mm (1/2 inch) stem 32B4228X042
22* ENVIRO-SEAL bellows seal bonnet gasket
(graphite/S31600)
Size 1/2 through 1-1/4 12B6316X022
Size 1-1/2 12B6317X022
Size 2 12B6318X022
Size 3 12B6319X022
Size 4 12B6320X022
24 ENVIRO-SEAL bellows seal adaptor
*Recommended spare parts
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