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ACQUITY UPLC Failing Dynamic Leak Test - WKB12345

Article number: 12345

SYMPTOMS

  • High delta PSI
  • Failing dynamic leak test
  • Poor reproducibility
  • Replicate injections steadily increasing in volume
  • The static leak test fails, with various messages
  • Excessive leakage
  • Unable to compress
  • Leak rate above acceptable limit
  • Check valve okay, but excessive leakage

ENVIRONMENT

  • ACQUITY UPLC QSM
  • ACQUITY UPLC BSM
  • ACQUITY I-Class BSM

CAUSE

Failed seals in the head(s)

FIX or WORKAROUND

Replace plunger and seals:

  • Plunger: 700002600  

  • Seal Wash Housing Seal: 700002598 

  • High Pressure Seal:

    • 700002599 ACQUITY UPLC BSM and ACQUITY H-Class QSM

    • 700009135 ACQUITY I-Class BSM                                                                                              

ADDITIONAL INFORMATION

Alternatively you might wish to use pump head rebuild kits consisting of plungers, seals and check valves.

For ACQUITY UPLC and ACQUITY UPLC H-Class

  • ACQUITY Accumulator Pumphead Rebuild Kit: 700004746

i2V Valve Rebuild Kit: 700004747 (for BSMs older than S/N F07UPB593M use Passive Check Valve Rebuild Kit 700004748 )

For ACQUITY UPLC I-Class

  • ACQUITY I-Class Accumulator Pumphead Rebuild Kit: 700010584
  • ACQUITY I-Class i2V Primary Pumphead Rebuild Kit: 700010583

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