Exchanging The Purge Valve Frit - Agilent Technologies 1260 Infinity VL User Manual

Exchanging the Purge Valve Frit

When • Frit – when piston seals are exchanged or when contaminated or blocked (pressure drop of
• Purge valve – if internally leaking
Tools required p/n
8710-0510
8710-1924
OR
Parts required #
1
1
1
Preparations • Switch off pump at the main power switch
• Remove the front cover
• Use an optional solvent shutoff valve or lift up solvent filters in solvent reservoirs for avoiding
1
Using a 1/4 inch wrench disconnect the pump outlet
capillary from the purge valve.
2
Disconnect the waste tube. Beware of leaking solvents
due to hydrostatic pressure.
3
Using the 14 mm wrench unscrew the purge valve and
remove it.
4
Remove the seal cap from the purge valve.
1260 Infinity QuatPump VL User Manual
> 10 bar across the frit at a flow rate of 5 mL/min of water with purge valve opened)
Description
Wrench open 1/4 — 5/16 inch
Wrench open 14 mm
Pair of tweezers
Toothpick
p/n Description
01018-22707 PTFE frits (pack of 5)
G1312-60061 Purge valve 1260
5067-4728 Seal cap (OPTIONAL)
leakages.

Exchanging the Purge Valve Frit

5
Using a pair of tweezers or a toothpick remove the frit.
9
Maintenance
117