Exchanging The Multi-Channel Gradient Valve (Mcgv) - Agilent Technologies 1260 Infinity VL User Manual

Exchanging the Multi-Channel Gradient Valve (MCGV)

Tools required p/n
8710-0899
Parts required p/n
G1311-67701
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
The life time of the multi-channel gradient valve can be increased by regularly flushing the
N O T E
valve, especially when using buffers. If using buffers, flush all channels of the valve with
water to prevent precipitation of the buffer, otherwise salt crystals could drop into an
unused channel and form plugs that may cause leaks of that channel. Such leaks will
interfere with the general performance of the valve. When using buffers in combination
with organic solvents in the Agilent 1260 Infinity Quaternary Pump it is recommended to
connect the aequous solutions/buffers to one of the bottom ports (A and D) and the
organic solvent to one of the upper gradient valve ports. It is best to have the organic
channel directly above the buffer channel (e.g., A - buffer, B - organic solvent).
1260 Infinity QuatPump VL User Manual
Description
Screwdriver, Pozidriv #1
Description
Multi channel gradient valve (MCGV)
leakages.

Exchanging the Multi-Channel Gradient Valve (MCGV)

9
Maintenance
131