Locate the source, drive and receiving position for this task
Define tubing ID/OD, length, interface geometry, pressure, materials and maintenance method. Follow the diagram to confirm liquid contact, pressure and destination before assigning drive and connection roles.
Calculate complete-path volume and resistance
Record tubing ID, length, interface geometry, pressure, formulation and shared volume. Filters add volume and pressure drop; check valves add opening requirements. Include both in pump operating-point calculations.
| Condition to compare | Information required | Selection affected |
|---|---|---|
| Path geometry | Bore size, length, ports and shared volume | Calculate delay, retention and resistance |
| Wetted-contact requirements | Actual liquid, temperature and cleaning conditions | Confirm materials component by component |
| Maintenance state | Disassembly, replacement and orientation requirements | Define assembly records and recovery acceptance |
Compare product options against task requirements
The following candidate options match this page's responsibilities. Compare them against the operating conditions described, then check capacity, materials and interfaces on the product pages. Card images show representative configurations; suitability must still be confirmed at actual operating points and by application results.
| Product category | Corresponding role | Confirm before selection |
|---|---|---|
| Tubing materials and dimensions | Connection paths and shared volume | Bore, length, load and actual formulation jointly determine materials and dimensions |
| Rigid-tubing fittings | Tube-end positioning and sealed connections | Check tube outer diameter, threads, seal structure and port-bottom geometry |
| PE-Series Filters | Particle retention permitted by the method | Cards show representative configurations. Select actual pore size and filter material for the target, pressure drop and recovery requirements. |
| G-series check valves | Backflow limitation | The card shows a representative configuration. Confirm actual opening conditions, reverse leakage and medium separately. |
Prime and inspect again after replacing connections
Assemble to the drawing and verify flow direction. After priming, check leakage and actual flow. Reassess delay, residue and first-dose delivery after changing tube length, filters or fittings.
Action records should link commands, valve or interface states and actual received results. When raw material, container or sample identity changes, reconfirm shared paths and conditions permitting the next step. Completion of drive movement alone does not replace task acceptance.
Assess sealing, recovery and restart performance separately
Validate sealing, installed resistance, analyte recovery and recovery after maintenance separately. Free passage does not prove that filtration preserves the sample or that dead volume meets method requirements.
| Validation scenario | Measurement or observation | Interpretation and action |
|---|---|---|
| Installed path | Measure sealing, load and actual delivery | Evaluate operating performance even after a connection is successfully assembled |
| Method compatibility | Check target recovery and blanks | Mechanical protection does not automatically establish that the analytical sample is unchanged |
Record test medium, configuration, installed path and operating sequence; present routine operating points and boundary results separately. Calculations support design discussions, component documentation checks models, and installed measurements confirm the actual task.
After an abnormality or maintenance, first identify which segment needs recovery
Misconnections, gaps, tube deformation or leaks may alter volume and pressure. Isolate the affected segment and reconfirm assembly; matching threads do not establish interchangeability.
Retain current source, container identity, completed actions, valve or interface state and actual receiving information. Use the table to locate the stage that changed before deciding to retry, continue or restart. After recovery, recheck the relevant operating point before returning an uncertain action to the automatic cycle.