Exchange The Purge Valve Frit Or The Purge Valve - Agilent Technologies Infinity II SFC Binary 1260 User Manual

8
Maintenance

Exchange the Purge Valve Frit or the Purge Valve

Exchange the Purge Valve Frit or the Purge Valve

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 p/n
5067-4728
Preparations • Switch off pump at the main power switch
• Open the doors
• 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. Disconnect the waste
tube. Beware of leaking solvents due to hydrostatic
pressure.
100
> 10 bar in low delay volume configuration and > 20 bar in standard configuration 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
Description
Frits
Purge Valve
Seal cap
leakages
2
Using the 14 mm wrench, unscrew the purge valve and
remove it from the purge valve holder.
1260 SFC Binary Pump