Specifications

www.agilent.com/chem
•
800 227 9770
32
PUMP MAINTENANCE
Cleaning or Replacing the
Solvent Inlet Filters
1. Remove the solvent inlet filters.
2. Replace the glass frit filters, or soak
them in concentrated nitric acid (35%)
for one hour. Be sure to flush well
to avoid column damage.
3. Install either the new or cleaned
solvent filters.
Clean or replace the solvent inlet filters at
least once every 3 months. Stainless steel
filters can be sonicated in isopropanol;
however, glass filters cannot be sonicated
as glass particles may break off or the
fi
lters may shatter.
To test if a solvent inlet filter is blocked,
disconnect the solvent inlet tube at the end
furthest from the filter and bottle head
assembly. If the filter is in good condition,
solvent will flow freely out of the solvent
tube. If there is a blockage, little or no
solvent will drip from the tube.
If a blockage occurs, it’s easiest to simply
replace the solvent inlet filter. However,
you can clean a glass filter by using the
following procedure:
Inlet Frit Frit Adapter
Frit Inlet
ID (mm)
Tube OD
(mm)
Recommended
Use
Part No. Description Price ($) Part No. Description Price ($)
5041-2168
Glass filter,
solvent inlet 20
µm pore size
39 5062-8517
Frit adapter,
PTFE, 3 mm,
4/pk
27 5 3.2
analytical scale,
micro scale
3150-0944
Glass filter,
solvent inlet, 40
µm pore size
40
G1361-23204
Frit adapter,
4mm, PTFE
10 7 4 Preparative LC
3150-0944
Glass filter,
solvent inlet, 40
µm pore size
40
G2258-23201
Frit adapter
,
PTFE for 1/8
″
od tubing
16 7 3.2
G2258A
Dual Loop
autosampler