Edwards FL20K, Instruction Manual, Page: 8 / 14

A133-99-880 Issue E
Page 4 © Edwards Limited 2013. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Installation
3 Installation
3.1 Unpack and inspect
Remove all packing materials and check the FL20K. If the FL20K is damaged, notify your supplier and carrier in writing
within three days; state the item number of the FL20K together with your order number and your supplier’s invoice
number. Retain all packaging materials for inspection. Do not use the FL20K if it is damaged.
Check that your package contains the items shown in Table 1 . If any one of these items is missing, notify your supplier
in writing within three days.
If the FL20K is not to be used immediately, return it to it’s protective packaging.
3.2 Install the FL20K
We recommend that you mount the FL20K horizontally, as shown in Figure 1 . If necessary, however, you can mount
the FL20K in any orientation, as the sorbent is securely retained in the basket. The mass of the FL20K will be
adequately supported by the pipeline connections and you can connect either port to the rotary vacuum pump.
However, we recommend that you mount the FL20K as close to the vacuum system and as far from the rotary pump
as possible, to maximise the useful life of the sorbent. When you mount the FL20K, ensure that you leave adequate
clearance to enable the sorbent basket to be removed.
Use the standard KF coupling components (that is, NW clamping rings, centring rings and O-rings) to connect the
FL20K to the pump and the vacuum system.
3.3 Fill the FL20K with sorbent
CAUTION
Do not overfill the basket with sorbent, If you do, crushed sorbent could be sucked into the rotary pump and
damage the pump.
1. Refer to Figure 1 ; unscrew and remove the nut (1) and the lid (6).
2. Remove the basket (4) and spring (5) from the trap body (3).
3. Refer to Figure 3 . Remove the wing nut (9) and end cap (1) from the basket (3). Remove the washer (10),
compression spring (8) and perforated disk(7).
4. Fill the basket with sorbant; when full, the end disk (7) should align with the marker (6) on the spindle:
Table 1 - Checklist of items
Qty Description Check (

)
1 FL20K Valve 
1 Tin of activated alumina

WARNING
Activated alumina is a desiccant and will absorb materials from your process system. You must take
suitable precautions to protect people from the harmful effects of any noxious materials released
if you bake the spent alumina to reactivate it. Avoid inhalation of its dust, eye contact and
unnecessary skin contact.