Industrial Water Ring Main
A treatment-plant supply feeds a DN200 distribution ring serving four process users totalling 60 L/s. Because the ring is a true loop, each demand is fed from two directions at once — the solver balances both paths simultaneously, something a spreadsheet single-path calculation cannot do.
The solved flow pattern shows the ring splitting the feed 29/31 L/s at the entry junction, with one ring segment carrying flow "backwards" relative to how it was drawn — the sign convention the solver handles natively. Every pipe stays under the 3 m/s service-velocity guidance and the 500 Pa/m friction-gradient guidance, which the Design Check overlay confirms at a glance.
Solved results — Incompressible solver, 6 iterations
| Plant feed flow | 60L/s |
| Ring north-east leg | 29.25L/s |
| Ring west leg (reversed) | 30.75L/s |
| Feed velocity | 1.179m/s |
| Far-side ring pressure | 436.1kPa(g) |
What this example shows
- True looped network — demands fed from both directions
- Flow reversal solved natively (negative flows on two ring legs)
- All pipes within Crane TP-410 service velocity and gradient guidance
Explore it yourself
Open the solved model in the browser sandbox — no account needed — or create a project from this template to modify and re-run it. 10 nodes with a looped topology — above the free plan's project size.