Specifications

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PUMP MAINTENANCE
Pistons and Seals
Step up to the strength and consistency of sapphire pistons.
Agilent pistons are made from a high purity, monocrystalline
sapphire for maximum durability. Although ceramic pistons can
be manufactured at a lower cost, ceramic is a sintered,
polycrystalline material, which can cause undesired variations
during the production process.
Agilent sapphire pistons …
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Are meticulously cut at just the right angle, making them
the most durable – and longest lasting – pistons in the world.
●
Are precisely aligned in their stainless steel holder
to minimize wear on the piston and seal.
Agilent seals are designed to fit snugly around our pistons,
and are capable of adapting to a wide range of flow rates
and pressures.
Agilent piston seals ...
Replacing the Active Inlet Valve cartridge
(All pumps except the G1361A preparative pump)
1. Use a 14 mm wrench to remove the
active inlet valve.
2. Change the cartridge.
3. Reinstall the active inlet valve.
You should service the active inlet valve
w
hen the pressure ripple is unstable and a
leak test confirms a problem with the valve
due to internal leaking. The active inlet
valve contains a cartridge that you can
exchange as follows:
Tips & Tools
Be sure to properly position the Active Inlet Valve
cable when you reinstall the valve.
Description Part No. Price ($)
Cartridge for active inlet valve 5062-8562 164
Active Inlet Valve for 1100 G1312-60010 447
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Are spring-loaded and engineered to deliver optimal
performance over highly dynamic flow and pressure ranges.
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Are manufactured from a proprietary polymer blend,
and feature a spring made from the same high-quality
stainless steel that is used in our pump's flow path.
The combination of our piston and seal has undergone
extensive testing
under temperature stress, with all common
HPLC solvents, and in many instruments. More importantly,
they yield consistent, reproducible results in highly demanding..