What do these products do in this instrument?
Multiport Rotary Valves: Routing for Feeding, Sampling and Maintenance
Establish connections for the current task in selector-valve configurations, coordinating pumps and interlocks. Identify cleaning, discarded-sample and product destinations separately. Check isolation and backflow after closing.
MRV3 selects sources or destinations and requires a port-state diagram and shared-volume budget. Port count indicates routing options; confirm pressure in each state and independent simultaneous supply requirements separately.
Tubing pinch-off solutions: isolate and replace flexible-tubing paths
Control flexible-tube branches during feeding, sampling and maintenance while limiting direct contact between liquid and the valve body. Evaluate tubing, fittings, assembly and cleaning procedures together.
Discuss tubing pinch-off for the specific project. Tubing and fittings define the liquid-contact path. Validate tubing material, wall thickness, pinch seal and replacement procedure together, and assess cleaning or sterilization across the complete path.
Define connections using the instrument's port-state diagram
This page covers multiport rotary valves and tubing pinch-off solutions. Identify every port, current source, receiving destination and branch requiring isolation. Check connectivity during aspiration, delivery, washing, maintenance and power loss. Valve selection actions must correspond to permitted drive conditions.
Include renewal of shared segments after switching in the sequence
After source switching, shared tubing may retain the previous composition. Record volume and arrival delay from the new source to the receiver, and measure residue and recovery for the actual worst-case switching combination. Confirm port positioning and arrival of new liquid separately.
Translate actual branch conditions into configuration requirements
| Condition | To confirm |
|---|---|
| Connections and pressure | Provide port diagrams and pressure conditions for all operating, cleaning and shutdown states. |
| Shared volume | Identify residue locations after source changes, flushing volumes and discharge destinations. |
| Control and isolation | Check valve-position feedback, pump actions, shutoff leakage and permitted power-off states. |
Compare product configurations by the roles on this page
| Product | Configuration option | Conditions to verify |
|---|---|---|
| MRV3 multiport rotary valve | Multiple-source selection | Compare 10-, 16- and 24-port options and port diagrams; verify high-pressure suitability separately |
Confirm product roles in actual operation
Connect the culture process, actual feeding and sample analysis, retaining records across the entire run.
Do more valve ports mean more channels can supply liquid simultaneously?
Check port connection structure and drive configuration. The number of selectable sources, independent paths and simultaneous-operation capability are different conditions, determined by actual connections in each state.
Periodic dispensing, continuous feeding and aseptic sampling have different requirements. A single metering test cannot establish all three.