1260 Infinity Binary Pump User Manual 169
Maintenance
10
Seal Wear-in Procedure
Seal Wear-in Procedure
1 Put a bottle with 100 ml of isopropanol in the solvent cabinet and place
the solvent intake filter of the pump head you want to wear in into this
bottle.
2 Screw the PEEK adapter 1/4- 28 to 10- 32 (0100- 1847) onto the active
inlet valve and connect the inlet tube from the bottle head directly to it.
3 Connect the Restriction capillary (5022- 2159) to the purge valve.
Connect its other end to a waste container.
4 Open the purge valve and purge the system for 5 min with isopropanol
at a flow rate of 2 mL/min.
5 Close the purge valve, set the flow to a value that gives a pressure of
350 bar. Pump 15 min at this pressure to wear the seals in. The
pressure can be monitored on the analog output connector of the pump,
with the Instant Pilot, chromatographic data system or any other
controlling device connected to your pump.
6 Turn OFF the pump, slowly open the purge valve to release the
pressure from the system, disconnect the restriction capillary and
reconnect the outlet capillary to the purge valve. Reconnect the intake
tubing to the solvent selection valve and the connecting tube from the
solvent selection valve (if installed) to the AIV.
7 Purge your system with the solvent used for your next application.
Seal damage
This procedure is required for black PTFE seals (standard applications, p/n 5063-6589),
but it will damage the yellow PE seals (normal phase applications, p/n 0905-1420).
➔ Do not run the seal wear-in procedure if PE seals are installed in the pumphead.
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