Our pump heads are made from materials, which are resistant to common HPLC solvents. You can use all pumps under standard conditions (1 < pH < 13, not oxidative or reductive reagent).
If you are using buffer or any high concentrated salt solutions, you should use ceramic or titanium pump heads. For liquids with a pH < 1, you can use the Hastelloy version of the 10 or 50 ml pump head.
In case your eluent is more aggressive (oxidative/reductive or a pH > 13) you have to use Kel-F / FFKM upgrade Kits:
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