134 Agilent 1290 Infinity II Flexible Pump User Manual
7 Maintenance
Replace the Multi Purpose Valve
The central (C) port is connected to the outlet of the pressure sensor.
• Port 1 is connected to the outlet of the optional Jet Weaver
• Port 2 is connected to the inlet of the optional Jet Weaver
• Port 3 is blocked by a blank nut (plastic)
• Port 4 is connected to the system (typically multisampler)
• Port 5 is connected to the outlet of the inline filter
• Port 6 is blocked by a blank nut (SST)
• Port 7 is connected to the waste capillary
• Port 8 is connected to the inlet of the inline filter
Block unused ports with blank nuts.
3
Put the new valve head onto the valve drive such that the
lobe fits to the groove. Screw the valve head onto the
valve drive using the union nut.
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