170 1260 Infinity Binary Pump User Manual
10 Maintenance
Exchanging the Active Inlet Valve (AIV) or its Cartridge
Exchanging the Active Inlet Valve (AIV) or its Cartridge
1 Remove the front cover.
2 Unplug the active inlet valve cable from the connector.
3 Disconnect the solvent inlet tube at the inlet valve (beware of leaking
solvents).
When If internally leaking (backflow)
Tools required Description
Wrench, 14 mm
Parts required p/n Description
G1312-60025 Active inlet valve body, without cartridge
G1312-60020 Cartridge for active inlet valve 600 bar
Preparations Switch off the pump at the main power switch
Ensure correct fit of the active inlet valve
Overtightening will destroy the active inlet valve cartridge.
➔ Tighten the active inlet valve properly.
Binary pumps without solvent selection valve (SSV) have an adapter installed between the
solvent line and the active inlet valve (AIV). Disconnect the solvent tubes at the adapter
and remove the adapter from the AIV.
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