Characterise the fluid
Record particle size distribution, solids content and flow behaviour at the relevant temperature. These are separate characteristics.
Match geometry to the application
Wide-gap and free-flow descriptions do not establish suitability by themselves. NL, NW and Free Flow address different duties; LWC is not a wide-gap wastewater substitute. Channel spacing is not an allowable particle diameter.
Plan cleaning access
Describe normal operation, shutdown and cleaning scenarios. Review downtime and access requirements before making a model decision.
Prepare for the discussion
- Fluids, composition and relevant material requirements
- Flow rates and inlet/outlet temperatures on both circuits
- Design conditions and allowable pressure drop on each side
- Exact model, nameplate and current technical documents