Instruction manual

9.1 Installation
9-15
RF-20A/20Axs
9
3
Fit male nuts PEEK to both ends of the PEEK
tubing.
4
Loosen and remove the stop plug that is fitted to
the column outlet.
5
Screw the male nuts PEEK on the PEEK tubing
onto the couplings 1.6-0.8C on the column outlet
and the cell inlet tube (the tube marked with a blue
cover).
Fig. 9.18
 Cautions on Handling Tubing
Male nut,
PEEK
Stop plug
Column outlet
PEEK
tubing
Male nut,
PEEK
Inlet coupling
1.6-0.8C
Blue tubing
!CAUTION
• Unusable solvents:
Use of the following solvents will cause serious deterioration in the strength of the PEEK resin
due to stress cracking. Never use these solvents.
Concentrated sulfuric acid, concentrated nitric acid, dichloroacetic acid, acetone
∗
, tetrahydrofuran
(THF), dichloromethane, chloroform, dimethyl sulfoxide (DMSO), fluorine organic solvents such as
hexafluoroisopropanol (HFIP)
∗
There is no problem with temporarily using a low-concentration aqueous solution with an acetone
concentration of 0.5 % or less, e.g. for the purpose of checking the performance of the gradient.
• When bending PEEK tubing, ensure the bending radius is at least
10 mm.
Bending the tubing with a smaller bending radius will diminish its strength at
that point. Note also that plumbing must not be bent unreasonably and left
unsecured, but should be bent as naturally as possible.
• When cutting tubing, take care not to leave any damage on its surface.
Damage on the surface of PEEK tubing will also diminish its strength.
Radius of
10 mm or more