Agilent G3452-60552 is an original pneumatic manifold assembly for the Split/Splitless (S/SL) inlet used with Agilent 7890 Series gas chromatographs. The module forms part of the inlet pneumatic control system and supports carrier-gas, split-flow, and related pressure-control functions in the 100 psi inlet configuration.
It is a service replacement assembly rather than a complete S/SL inlet.
Function in the S/SL Inlet
The manifold assembly is part of the pneumatic control architecture of the Split/Splitless inlet.
It contributes to control of:
- carrier-gas pressure,
- total inlet flow,
- split flow,
- splitless operation,
- septum purge flow,
- inlet pressure conditions during injection.
Stable pneumatic control is essential for reproducible retention times, correct split ratios, and reliable capillary-column flow.
Compatibility
Agilent specifies G3452-60552 for:
- Agilent 7890 GC
- Split/Splitless inlet configurations
- 100 psi inlet pneumatic systems.
The exact inlet and EPC configuration should be verified before installation because several inlet variants exist within the 7890 platform.
What the Assembly Does Not Include
G3452-60552 is the manifold assembly, not the complete mechanical S/SL inlet.
Separate components can include:
- inlet body / weldment,
- heater,
- temperature sensor,
- liner,
- septum,
- split vent trap,
- inlet seals,
- related pneumatic and electrical components.
Diagnosis should therefore confirm that the manifold/EPC section is the component requiring replacement.
