Cold vent stack
Atmospheric cold vent: flanged inlet turning up through a long-radius elbow with a low-point drain, riser with flanged spools, end-of-line deflagration arrester (element housing, insect screen and weather hood) or a plain open tip, day-marking bands and an obstruction light. Self-supported, three-leg braced tower or guyed; an access platform and caged ladder serve the arrestor on taller stacks.
Installation
Copies thermal/vent-stack.tsx and the shared lib/ into src/components/deck-twin/. Needs three, @react-three/fiber and @react-three/drei. See installation for the manual route.
Usage
import { Canvas } from '@react-three/fiber'
import { OrbitControls } from '@react-three/drei'
import { Stage } from './components/deck-twin/lib/stage'
import { VentStack } from './components/deck-twin/thermal/vent-stack'
export default function Scene() {
return (
<Canvas shadows camera={{ position: [8, 5, 9], fov: 35 }}>
<Stage>
<VentStack />
</Stage>
<OrbitControls makeDefault />
</Canvas>
)
}
Props
| Prop | Type | Default | Range |
|---|---|---|---|
height | number (m) | null | 4 – 40 |
nps | number (NPS, in) | null | |
rating | 150 | 300 | 600 | 900 | 1500 | 2500 | null | |
support | "self" | "braced" | "guyed" | null | |
arrestor | boolean | null | |
tag | string | null | |
...group | position, rotation, scale… |
P&ID
A line turning up into an open-ended stack with an arrow or "to atmosphere" at the top, often with a flame arrester (box with parallel lines) at or near the tip; labelled VENT or VS-.
No flame symbol: a cold vent. An open-ended small-bore line ending in a goose-neck or "TO ATM" is just a vent connection, not a stack.
heightnpsratingsupportarrestortagTypical suppliers
Protego · Storagetech. The geometry is generic and sized from public standards. It is not vendor CAD.
For agents
Machine-readable entry with props, ranges, defaults and ports:
Or fetch /r/vent-stack.json, or copy a ready-made instruction:
Add the Deck Twin "Cold vent stack" component to this project. Run `npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz add vent-stack` (it copies the file and the shared lib into src/components/deck-twin/), then `npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz info vent-stack` for its props, ranges and ports. Render <VentStack /> inside a React Three Fiber <Canvas shadows>, wrapped in <Stage> from src/components/deck-twin/lib/stage. Set props from my data (metres, NPS in inches, ASME class) and leave the rest at defaults. Install three, @react-three/fiber, @react-three/drei and @types/three if they're missing. Full guide: https://decktwin.com/skill/SKILL.md