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Independent. Diagnosis first, parts second.

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Illustration of a plunger rod and pump seal. Generic drawing, not a photograph of this part. Illustration

This is an aftermarket part, not an original manufacturer part. Instrument names and part numbers identify what it fits and replaces; they remain the trademarks of their owners. The manufacturer, country of origin, rated life and warranty are stated in the quote, before you decide anything. If you need the OEM part, say so and I will quote that instead.

Pump and injector spares

Active inlet valve cartridge, 600 bar, for Agilent B-series pumps (G1311B, G1312B, G7111, G7112)

Replaces OEM part number: G1312-60020

Aftermarket active inlet valve cartridge, 600 bar, for the Agilent G1310B, G1311B, G1312B, G7111A, see the full fitment list above, cross-referenced to G1312-60020. A valve that is not seating shows up as pressure that swings with the pump stroke. Clean it before replacing it, because a trapped particle gives the same symptom as a worn seat.

Check this before you order

The A-series pumps (G1310A, G1311A, G1312A) and the 1260 capillary and nano pumps are rated to 400 bar and take a different cartridge. Read the module number off the front of the pump, because the system badge does not decide this: a 1260 capillary pump takes the 400 bar cartridge.

Type
Active inlet valve cartridge
Pressure rating
600 bar
Fits
Agilent G1310B, G1311B, G1312B, G7111A, G7111B, G7112A, G7112B. These are found in 1200, 1260 Infinity and Infinity II systems
Replaces
G1312-60020
Condition
new
Price
Quoted per order, in Canadian dollars

Before you order: if the instrument is misbehaving, tell me the symptom, not the part number. Lamps and seals get replaced for problems they did not cause. The first look costs nothing, and if this part is not the fix, I will say so.

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