Single-pipe what-if.

Pick the unknown — the other three are inputs. All four solvers share the same Darcy-Weisbach + Colebrook-White engine as CW Pipe Sizer Pro. Only the unknown changes.

CW Pipe Sizer · Lite vs Pro

Lite answers single-pipe what-ifs — pick the unknown, other three are inputs. Locked sane defaults, ephemeral results, copy-and-paste output. Pro (DN-04.01P) builds project-grade sized schedules with Schema B export to Hydronic Network Pro, deterministic QA, signed PDF reports.

Lite is forDN-04.01L

"What size is this run?" — concept-stage sketches
"What ΔP does this give me?" — verification & checking
"What flow fits this existing line?" — retrofit / diagnostic
"How far can I push this DN?" — layout sanity check

Pro is forDN-04.01P

Project-grade pipe schedules — sized + verified + signed
QA design-basis checks against the schedule (13 rules)
Schema B export → Hydronic Network Pro
PDF report with sign-off & engineer-of-record stamp

Same engine. Both run the canonical DENOVA Water Engine v1.0.0 verbatim. Numbers from Lite match Pro for identical inputs.

COMMON

Fluid & material

CHW · 7 °C · water

System

Material

Fluid temp defaults from system

°C

Glycol

Glycol type

System pressure working / static + pump

kPa

Component ΔP coil / FCU / control valve

kPa

Lifecycle assumptions · Sweep & Optimise

Operating hours per year

h/yr

Pump+motor η combined efficiency

—

Electricity tariff

$/kWh

Horizon

years

Defaults reflect typical practice — engineer verifies for the project. Glycol corrections per Dow/ASHRAE correlations baked into the canonical engine. Pressure-class ratings and pipe costs are concept-stage references; derate per supplier datasheet at elevated temperatures and override with tendered pricing in CW Pipe Sizer Pro.

MODE 1

Forward sizing — what size pipe?

load + ΔP/m + Vmax → DN

MODE 1

Result

Awaiting inputs Fill in the fields above. Result updates live.

Run history 0 / 8

No runs yet — pin a result to start tracking what-ifs.