14
NOWPAK LINER-BASED CANISTER SYSTEM
User Manual | Entegris, Inc.
1. Select a new, properly sized, pre folded liner.
NOTE: See Appendix B: Canister Compatibility Matrix,
page 32, to find the liners that may be used with each
canister.
2. Place the correct liner insertion tool into the canister
neck, Figure 23. The liner insertion tool is used to
prevent damage to the replacement liner as it is
inserted into the canister through the neck opening.
This insertion tool protects the liner from any burrs
or defects inside the canister neck.
Liner insertion
tool
Figure 23. Liner insertion tool inserted in canister neck (NA-60 shown).
3. Remove the new liner from the cleanroom packaging.
Do not fully unfold the liner.
The folds in the liner are
specifically designed to enable proper inflation of the
liner. The folds create a small amount of back pressure
which allows the bag to form to the upper and lower
portions of the canister equally.
Be careful to prevent damaging the liner while
handling it.
For 40-liter and 200-liter liners the bottom of the
liner is folded up. Remove this fold prior to inserting
into canister.
4. Insert the liner into the canister until the fitment
remains outside the canister, Figure 24.
Figure 24. Liner being inserted into canister (observe liner folds).
NOTE: Be sure the liner is not rotated or becomes twisted
as it is inserted into the canister. Those conditions can
result in improper inflation.
5. Remove the liner insertion tool while holding on to
the top of the fitment.
NOTE: Do not allow the liner fitment to drop through
the neck of the canister.
6. Place the retainer (packaged with the liner) around
the fitment. Be sure to examine the base of the
fitment and remove any portion of the liner that
may be hooked on the upper fitment, Figure 25.
All liner material should be below the base of
the fitment.
Retainer
Liner fitment
Figure 25. Placing the retainer around the fitment (200-liter canister shown).
7. Seat the fitment and retainer into the neck of the
canister, Figure 26.
Figure 26. Seating the fitment and retainer into the canister.
8. The canister is now ready for inflation.
