When To Use Alternative Seals - Agilent Technologies 1200 Series Reference Manual

When to Use Alternative Seals

The standard seal for the quaternary pump can be used for most applications.
However applications that use normal phase solvents (for example, hexane)
are not suited for the standard seal and require a different seal when used for
a longer time in the quaternary pump.
For applications that use normal phase solvents (for example, hexane) we
recommend the use of the polyethylene seals, part number 0905-1420 (pack of
2). These seals have less abrasion compared to the standard seals.
Polyethylene seals have a limited pressure range 0–200 bar. When used above 200 bar their
N O T E
lifetime will be significantly reduced. DO NOT apply the seal wear-in procedure performed
with new standard seals at 400 bar.
1200 Series QP Reference Manual
Optimizing Performance 2
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