NOWPAK LINER-BASED CANISTER SYSTEM
19
User Manual | Entegris, Inc.
2. Install a new breakseal into the closure base,
Figure 32.
a. Place the closure base upside down on an
appropriate work surface.
b. Insert a new breakseal into the closure base,
gasket side down.
c. Press the breakseal into place using the breakseal
insertion tool (NA-23).
Breakseal
insertion tool
(NA-23)
Figure 32. Installing a breakseal.
NOTE: The breakseal membranes have been critically
cleaned and should not be exposed to an uncontrolled
environment. To maintain cleanliness all assembly operations
must be performed within a cleanroom environment.
3. Assemble the closure cap onto the base.
4. Place the assembled closure onto the canister neck.
Torque the closure clockwise onto the canister to
the specified value using the appropriate torque
wrench and adapter, Figure 33.
Closure number
Closure base torque
NC-03/NC-03-2
NC-04/NC-04-2
27 – 34 N•m (20 – 25 ft•lbs)
NC-W2
9.0 – 9.6 N•m (80 – 85 in•lbs)
NC-200-2/NC-200-4
47 – 54 N•m (35 – 40 ft•lbs)
NOTE: If proper torque is not applied, the closure
base could come loose when the dispense connector
is removed, causing serious damage to the dispense
connector.
5. Hand tighten the closure cap. There is no need
to torque the cap.
6. The canister is now ready to ship.
IMPORTANT: Ensure the closure cap is tight before
shipping a canister filled with chemical. Do not drop
filled canister or place filled canisters on their side. Both
actions can cause damage to the liners and the breakseal.
Figure 33. Installing and tightening the two-piece closure.
One-Piece Closures
Use this procedure to cap a filled canister with a
one-piece closure. The one-piece closures (NC-W1
and NC-W2) are used when an ND-LD dispense
connector is used to dispense chemical from
the canister.
NOTE: 20-liter canisters can also be capped with a
two-piece closure when an ND-CD or MaxMT dispense
connector will be used with the canister. See Two-Piece
Closures, page 7.
Tools Required for Torquing the NC-W2 Closure
Tool
Part number
Torque wrench
NA-33
Torque adapter tool
NA-03
1. Inspect the closure, Figure 34, to ensure it is clean and
not worn out or damaged. See Closure Maintenance,
page 23, for cleaning and replacement procedures.
Figure 34. One-piece polypropylene closure (NC-W2).
