Bentley OpenFlows HAMMER
Hydraulic transient and surge-analysis software for water distribution and wastewater piping systems. Bentley now licenses HAMMER through the OpenFlows Water family, where the current Standard, Advanced, and Ultimate tiers include the named HAMMER transient-analysis capability.
Made by Bentley Systems, public (BSY, $10.1B)
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C1 3/5 reflects the $3,354 Standard tier that first includes HAMMER, C2 2/5 reflects desktop model authoring with no public standalone API, and C5 4/5 reflects OpenFlows WaterCAD, OpenFlows WaterGEMS, ArcGIS, MicroStation, AutoCAD, and ProjectWise integrations. C4 3/5 reflects INP, DGN, DXF, GIS, and CSV interoperability.
Rubric Scorecard
| Criterion | Score | Evidence |
|---|---|---|
| Value for the price | 3/5 | tiered subscription, from $3354 Source → |
| Agent Friendliness | 2/5 | API: no public standalone API surfaced in current product docs; workflow is centered on desktop model authoring and file-based interoperability |
| Ease of adoption | 2/5 | desktop-install, steep learning curve |
| Portability & lock-in | 3/5 | 5 file formats |
| Interoperability | 4/5 | 6 integrations |
Pricing
How we verified this: we checked Bentley OpenFlows HAMMER against its live site and an independent source — formacion-industrial.com. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-14.
Evidence
File formats
| Format | Direction | Support |
|---|---|---|
| INP | both | partial -- Third-party HAMMER technical page describes EPANET interoperability. |
| DGN | import | partial |
| DXF | import | partial |
| GIS | import | full |
| CSV | both | unknown |
Integrations
Adoption
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