3DAssets.dev
Loading model…

About

Three-port air reversing valve with supported stem and hand lever; air-only bore. Original pneumatic mail exchange scenery. Metres, Y up, Z forward, ground-contact origin. Static scenery without operating procedures or certified performance claims.

Use with an AI agent

Copy this prompt into your AI chat, then describe what you want to build with the asset.

Use the “Air Reversing Valve (Pneumatic Tube Mail Exchange)” asset in my project.

Model: https://cdn.3dassets.dev/assets/32297/v1/model.glb
Asset page: https://3dassets.dev/assets/pneumatic-tube-mail-exchange-pneumatic-tube-mail-excha-e1ce2cfd
Description: Three-port air reversing valve with supported stem and hand lever; air-only bore.

- Dimensions (X × Y × Z): 3.644 × 2.871 × 4.29 metres
- Triangles: 36.0k
- Animations: none
- Licence: CC0 1.0 Universal (https://creativecommons.org/publicdomain/zero/1.0/)
- Loading: Three.js GLTFLoader; no additional decoders required.

Also available as JSON, Markdown, or via the MCP server.

Import manually

Choose your framework, then copy the code into your project to load the asset.

import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js'

const loader = new GLTFLoader()
loader.load('https://cdn.3dassets.dev/assets/32297/v1/model.glb', (gltf) => {
  scene.add(gltf.scene)
})

Common questions

How do I use this model with my AI development tools?
Press "Copy for AI agent" above and paste the prompt into Claude Code, Cursor, Codex, GitHub Copilot, ChatGPT or any other coding assistant. The prompt carries the direct CDN URL, the real-world size, the licence and the loading notes, so the assistant can fetch the model and place it in your project without you writing the loader yourself. For a permanent connection, add the 3DAssets.dev MCP server to your tool with one command (for Claude Code: claude mcp add --transport http 3dassets https://3dassets.dev/mcp) and the assistant can then search the whole catalogue, fetch files and read the usage snippets on its own.

MCP server setupGuide for AI agents

How do I get started?
Three ways, from quickest to most automatic. Download the .glb with the button and drop it into your engine's asset folder, where it imports like any glTF file. Or skip the download: copy the three.js, React Three Fiber or model-viewer snippet under "Import manually", which loads the model straight from the CDN. Or connect your AI agent to the MCP server and ask for it by name, and it will find, fetch and place the model for you.

MCP server setupAPI reference

Which game engines and tools can I use this model with?
Anything that reads glTF, which today means all of the major ones: three.js and React Three Fiber on the web, Godot 4, Unity, Unreal Engine 5, Blender and the model-viewer web component. The model is a self-contained binary glTF (.glb) with textures embedded, so there is one file to import and no plugin, converter or decoder to install first.
How do I import this model into Unity, Godot, Unreal or Blender?
Unity: install the glTFast package (com.unity.cloud.gltfast) from the Package Manager, drop the .glb into Assets and drag the prefab in, or load it at runtime from the CDN URL. Godot 4: copy the file into the project folder and the editor imports it as a scene you can instantiate. Unreal Engine 5: File > Import with the built-in glTF importer, which converts the axes for you. Blender: File > Import > glTF 2.0. Units are metres with +Y up in the file, and every importer above handles the conversion to its own axes automatically.
Can I use this model in a commercial game, and do I need to credit anyone?
Yes to commercial use and no to credit. Every model on 3DAssets.dev is released under CC0 1.0 Universal, which places it in the public domain: use it in a paid game, an app, a film or a client project, modify it, redistribute it, and put nothing in the credits. A link back is welcome but it is entirely your choice.

CC0 licence text

Can I load it from the CDN instead of downloading it?
Yes. The .glb file has a permanent URL on cdn.3dassets.dev that is CORS-enabled and never changes content, so you can pass it straight to GLTFLoader, glTFast or model-viewer in production and cache it as hard as you like. Downloading is only needed for engines that import from disk.
Do I need Draco, Meshopt or KTX2 to load it?
No. The geometry is quantized with KHR_mesh_quantization and the textures are re-encoded to WebP, both of which three.js, Godot, Unity and Blender read natively, so a plain GLTFLoader is enough. There is nothing extra to configure and no decoder to ship with your bundle.

Air Reversing Valve (Pneumatic Tube Mail Exchange)

Three-port air reversing valve with supported stem and hand lever; air-only bore.

Download asset · 562.7 KB

More in Props & Furniture

Mesh Stillage (Car Factory Production Line)

Mesh Stillage (Car Factory Production Line)

Free 3D model of a stackable mesh stillage holding loose parts, a factory logistics container for a car factory game asset kit.

@3dassets4.4k tris · 9 ↓
Pallet With Parts Crates (Car Factory Production Line)

Pallet With Parts Crates (Car Factory Production Line)

Free 3D model of a wooden pallet stacked with three parts crates and a strap, factory logistics stock for a car factory game asset kit.

@3dassets1.6k tris · 8 ↓
Hay Rack (Farm and Working Animals HD)

Hay Rack (Farm and Working Animals HD)

Free standing timber hay rack with slatted sides and a feed of hay in the top.

@3dassets672 tris · 2 ↓
Shipping Crate Stack (Hero Shooter Harbour Payload)

Shipping Crate Stack (Hero Shooter Harbour Payload)

Free 3D game asset: a stack of three painted shipping crates for a hero shooter harbour map, 2.9 m tall with steel corner posts and pale labels.

@3dassets1.3k tris · 2 ↓
Stone Topped Mixing Bench (Witch Cottage and Apothecary)Animated

Stone Topped Mixing Bench (Witch Cottage and Apothecary)

Working bench 1.84 m long with a turned oak frame, a thick stone top, two drawers and an iron pot rail of hanging vessels.

@3dassets3.3k tris · 1 ↓
Writing Desk With Ledger (Witch Cottage and Apothecary)Animated

Writing Desk With Ledger (Witch Cottage and Apothecary)

Oak stillroom desk with a sloped writing board, an open ledger, quill and inkpot, a lit candle and one working drawer.

@3dassets1.9k tris · 1 ↓
Apothecary Chest (Witch Cottage and Apothecary)Animated

Apothecary Chest (Witch Cottage and Apothecary)

Waxed oak apothecary chest 1.22 m wide with twenty small labelled drawers, brass knobs and a moulded top.

@3dassets5.7k tris · 1 ↓
Jar Wall Shelf (Witch Cottage and Apothecary)

Jar Wall Shelf (Witch Cottage and Apothecary)

Wall hung apothecary shelving 1.78 m wide with three fiddled shelves and twenty four lidded jars, each with a blank paper label.

@3dassets8.5k tris · 1 ↓
Bottle Crate (Witch Cottage and Apothecary)Animated

Bottle Crate (Witch Cottage and Apothecary)

Slatted oak bottle crate with a straw bedded floor, six packed bottles and a hinged lid.

@3dassets2.8k tris · 1 ↓
Potion Bottle Conical Cream (Witch Cottage and Apothecary)

Potion Bottle Conical Cream (Witch Cottage and Apothecary)

Conical apothecary bottle in opaque cream glass, for oils that spoil in sunlight.

@3dassets456 tris · 1 ↓
Potion Bottle Conical Copper (Witch Cottage and Apothecary)

Potion Bottle Conical Copper (Witch Cottage and Apothecary)

Conical apothecary bottle in copper red glass, for tinctures kept out of the light.

@3dassets456 tris · 1 ↓
Potion Bottle Round Rose (Witch Cottage and Apothecary)

Potion Bottle Round Rose (Witch Cottage and Apothecary)

Round apothecary bottle filled rose, in deep red glass.

@3dassets456 tris · 1 ↓

Similar assets

Hand pull set of three (Bar, Pub and Brewery Taproom)

Hand pull set of three (Bar, Pub and Brewery Taproom)

Three cask hand pulls on the bar top: each a chrome C-clamp gripping the bar, a polished barrel with a beaded shoulder, a swan-neck spout, a long curved lever on a bearing yoke ending in a turned ball grip, and a blank oval pump clip on its bracket. Drip tray in front.

@3dassets4.4k tris
Hand wash basin with lever tap (Restaurant Kitchen and Dining Room)

Hand wash basin with lever tap (Restaurant Kitchen and Dining Room)

A wall-hung stainless hand wash basin on a back plate: a pressed bowl with a waste, a long knee-lever mixer, a rear upstand and a wall soap dispenser.

@3dassets1.1k tris
Three-port pipe tee (Factory Conveyor Network)

Three-port pipe tee (Factory Conveyor Network)

Three-port pipe tee for modular factory and automation scenes.

@3dassets348 tris
Right hand turnout (Modern Rail and Metro Network)

Right hand turnout (Modern Rail and Metro Network)

A 12 m right hand turnout, the handed pair to the left hand unit.

@3dassets5.2k tris
Underfloor heating manifold, eight port (Home Appliances and Utility Room)

Underfloor heating manifold, eight port (Home Appliances and Utility Room)

An eight port underfloor heating manifold: flow and return bars, flow meters on the lower bar, thermal actuators on the upper bar, circuit tails with compression nuts, a pump group, isolation valves, an air vent and a wiring centre.

@3dassets2.7k tris
Air conditioner outdoor unit (Home Appliances and Utility Room)

Air conditioner outdoor unit (Home Appliances and Utility Room)

An 800 mm air conditioning outdoor unit on mounting feet: an axial fan with a wire finger guard behind a bell mouth, condenser fin grilles on three faces, a service valve cover and two insulated pipe tails.

@3dassets2.3k tris
Right hand turnout (Steam Era Railway and Rolling Stock)

Right hand turnout (Steam Era Railway and Rolling Stock)

An 8 m right hand turnout, the handed pair to the left hand unit.

@3dassets1.1k tris
Self-serve drinks tower, 8 valve (Fast Food Counter and Drive-Thru)

Self-serve drinks tower, 8 valve (Fast Food Counter and Drive-Thru)

An eight valve self-serve drinks tower: dispensing heads over a perforated drip trough, cup levers, a splash panel and a blank header above the valves.

@3dassets2.7k tris
Three deck bakery oven (Cafe, Bakery and Coffee Bar)

Three deck bakery oven (Cafe, Bakery and Coffee Bar)

A 1.3 m three deck bakery oven: a heavy footed stand with a peel shelf, three stacked hearth chambers with stone soles behind named glazed drop-down doors, per-deck fasciae with dials and lamps, steam injection levers, vent pipes and a canopy hood with a duct.

@3dassets5.1k tris
Visitor sofa, three seat (Office Lobby and Building Facilities)

Visitor sofa, three seat (Office Lobby and Building Facilities)

A 2.22 m three-seat visitor sofa on the same frame and cushion module as the two-seat version, with three piped seat cushions and three back pads.

@3dassets4.7k tris
Warm Air Duct (Tea Garden and Processing House)

Warm Air Duct (Tea Garden and Processing House)

Hollow air trunk with full inner bore, flange rings and two supported mounting saddles.

@3dassets2.2k tris
Stem Collection Bin (Tea Garden and Processing House)

Stem Collection Bin (Tea Garden and Processing House)

Open stem bin with thick folded edges, lift handles and supported loose stems.

@3dassets2.6k tris