Inspecting The Column Switching Valve For Leakage - Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual

7.3.1 Inspecting the Column Switching Valve for Leakage

Several drain holes are provided on the stator ring. If liquid droplets appear on one or more
drain holes, this may indicate valve leakage.
Drain hole
Take the following remedial action:
• Replace the rotor seal or replace the rotor seal and stator face seal whatever is applicable
(→ page 107).
• Replace the stator (→ page 105).
• Replace the valve pod (→ page 100).
Operating Instructions
TCC-3000SD and TCC-3000RS Column Compartments
Fig. 45: Drain holes on the column switching valve
left: TitanHP valve; right: TitanHT valve
UltiMate 3000 Series:
Drain hole
Page 99