entegris NOWPak - Closure Maintenance

NOWPAK LINER-BASED CANISTER SYSTEM
23User Manual | Entegris, Inc.
CLOSURE MAINTENANCE
Normal maintenance for two-piece closures consists
of cleaning the closure cap and base and replacing
O-rings and compression ring as needed, Figure 40.
The NC-W2 one-piece closure does not require any
maintenance other than cleaning.
Inspect the O-rings and compression ring every time
a canister is changed out. The O-ring surface can
deteriorate over time. If an O-ring appears worn or
damaged, it should be replaced. The frequency of
replacement depends on usage. Be sure to read the
O-ring Handling Guidelines on page 25.
The following table indicates how often the two-piece
closure components are typically replaced:
CLOSURE
COMPONENT
CLOSURE
PART NUMBER
CLOSURE O-RING
PART NUMBER MATERIAL
MEAN TIME BETWEEN
REPLACEMENT (MTBR)
Closure cap O-ring
NC-03
NC-04
NC-200-2
NC-200-4
200328-C
200328-C-50
200328-C-500
EDPM with PTFE coating 6 months
NC-03-2
NC-04-2
NA-133-T-10
NA-133-T-100
FEP-encapsulated
silicone
2 uses (estimated)
Closure body O-ring
NC-03 200405-C
200405-C-100
200405-C-500
EDPM with PTFE coating Each use
NC-03-2 NA-133-T-10
NA-133-T-100
FEP-encapsulated
silicone
2 uses (estimated)
NC-04 200328-C
200328-C-50
200328-C-500
EPDM with PTFE coating Each use
NC-04-2 NA-133-B-10
NA-133-B-100
FEP-encapsulated
silicone
2 uses (estimated)
NC-200-2 201075-C FEP-encapsulated
silicone
25 uses (estimated)
NC-200-4 201440-C
201440-C-50
EDPM Each use
Compression ring
NC-03
NC-03-2
400321-C
400321-C-100
400321-C-500
HDPE 100 uses (estimated)
NC-04
NC-04-2
NA-133-S-10
NA-133-S-100
HDPE 100 uses (estimated)
NC-200-2
NC-200-4
401120-C Polypropylene 100 uses (estimated)
Breakseal
NC-03
NC-03-2
NC-04
NC-04-2
NC-200-2
NC-200-4
NA-09 or NA-49 PTFE wetted surface Each use