Butterfly valve

Butterfly valve in four styles: concentric rubber-lined wafer (centring ears) or lug body (tapped lugs at every bolt), double-flanged, or metal-seated triple-offset with an offset disc. Notch-plate lever or worm gear with position indicator; the disc turns with open. Wafer and lug lengths from API 609 Category B; flanged lengths typical ISO 5752 series 13. companionFlanges draws the pipe flanges around wafer and lug bodies.

Installation

Copies valves/butterfly-valve.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 { ButterflyValve } from './components/deck-twin/valves/butterfly-valve'

export default function Scene() {
  return (
    <Canvas shadows camera={{ position: [8, 5, 9], fov: 35 }}>
      <Stage>
        <ButterflyValve />
      </Stage>
      <OrbitControls makeDefault />
    </Canvas>
  )
}

Props

P&ID

Bow-tie with a straight bar through the centre at right angles to the line (the disc), often with a dot at its middle. Older legends draw two vertical lines with a diagonal between them.

tag HVtag BFVISO 10628-2 / ISO 14617-8 / PIP PIC001

Bar through the centre = butterfly; circle = ball; filled dot = globe; two close parallel bars = knife gate. Common in seawater, cooling and firewater lines.

Butterfly valve datasheet (API 609 / ISO 5752 / EN 593) fields and the props they set

Sizenps

Pressure classrating

Body stylestyle

Operatoroperator

Tag numbertag

Typical suppliers

Bray · Emerson Vanessa. 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/butterfly-valve.json, or copy a ready-made instruction:

Add the Deck Twin "Butterfly valve" component to this project. Run `npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz add butterfly-valve` (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 butterfly-valve` for its props, ranges and ports. Render <ButterflyValve /> 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