Rigid-body ready Industrial digital twin Proprietary but free Partly open · partly paid

Spirax Sarco Steam & Fluid Equipment 3D CAD Model Library

Provider：Spirax Sarco

Spirax Sarco's official 3D CAD library serves models for 2,500+ steam and fluid part numbers (DWG/ACIS SAT/STEP) with batch download, plus AutoCAD 2D drawing libraries and the CASSIO toolset.

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At a glance

Readiness
L1 · Rigid-body ready
Rationale
The official 3D CAD model library provides to-scale models of 2,500+ part numbers (Autodesk DWG, ACIS SAT, STEP) with extractable mass and collision geometry, hence L1; the official documentation states the models are to scale and accurately represent the products but not their internals, intended for 3D plant design, layout and sizing, and they carry no parameters for steam thermodynamic or fluid simulation.
Scale
Covers 3,500+ product lines (steam traps, flowmeters, pressure-reducing valves, separators, condensate pumps, heat exchangers, valves and control valves); the 3D CAD model library holds models for 2,500+ part numbers, searchable by keyword or product nomenclature, previewable and downloadable individually or in batches via the Model Basket, with the main library hosted on TraceParts and exportable free in 60+ formats; alongside it sit AutoCAD-oriented 2D application and product drawing libraries and the CASSIO offline drawing software. (The 2,500+ model count, the Model Basket batch download, the DWG/ACIS SAT/STEP formats and the to-scale-but-exterior positioning come from Spirax Sarco's own Resources and Design Tools pages and UK Product Handbook; the 3,500+ product lines and 60+ formats (TraceParts-hosted, account required) come from the official OEM document. No further scale figures are published, so coverage is stated on those three bases. Checked 2026-11-01.)
License
Proprietary but free — CAD models are free for plant design and product selection; the intellectual property belongs to Spirax Sarco and may not be redistributed; the newer TraceParts-hosted library requires a registered account while the legacy official 2D/3D libraries remain directly accessible. Models express exterior form and connection dimensions only, with no internal mechanism; sizing calculations (size, flow, pressure loss) must come from the official selection tools and datasheets.
Access
Partly open · partly paid
Formats
step · other
Runtimes
other
Physics properties
Collision geometryMass / inertiaThermal
Domain
Thermal · Fluid / CFD · Solid / Structure
Published
2026-11-01
Updated
2026-11-01

Why it is listed

Steam is easy to overlook in a plant model and expensive to ignore: every trap, separator, condensate pump and control valve moves mass and energy, and the layout constraints they impose shape the whole boiler house. Spirax Sarco's model library is one of the most complete in this space, and it comes with the sizing tools needed to turn a model into a spec.

Readiness assessment

The library provides to-scale models for 2,500+ part numbers across more than 3,500 product lines, in Autodesk DWG, ACIS SAT and STEP, so rigid-body geometry with extractable mass and collision shells is available — that is L1. The official documentation is explicit about scope: the models accurately represent the products but not their internals, and they carry no parameters for steam thermodynamic or fluid simulation. Treat them as layout and envelope assets.

Practical notes

Search by keyword or product nomenclature, preview in 3D, then download individually or in batches through the Model Basket. The current library sits on TraceParts and needs a new account; the legacy official 2D application and product drawing libraries, and the CASSIO offline AutoCAD add-in, remain directly available. If a model is missing, the vendor provides a free model-request service and typically responds within 48 hours. For sizing, use the official Product Sizing Suite and steam tables rather than reading values off a model.

Disclaimer: license and usage terms follow the official source — verify them yourself before use. This site indexes and links only; it does not host or mirror any asset file.

License and usage terms are those of the official source — verify before use. No asset file is hosted or mirrored on this site.