Needle valve (instrument)
Small-bore instrument needle valve: forged stainless bar-stock body with integral RF flanges, union bonnet, panel nut, packing nut, rising stem and T-bar handle with colour cap, bleed plug and stamped tag. open lifts the needle stem. NPS 1/2 to 1.
Installation
Copies valves/needle-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 { NeedleValve } from './components/deck-twin/valves/needle-valve'
export default function Scene() {
return (
<Canvas shadows camera={{ position: [8, 5, 9], fov: 35 }}>
<Stage>
<NeedleValve />
</Stage>
<OrbitControls makeDefault />
</Canvas>
)
}
Props
| Prop | Type | Default | Range |
|---|---|---|---|
nps | 0.5 | 0.75 | 1 | null | |
rating | 150 | 300 | 600 | 900 | 1500 | 2500 | null | |
open | number | null | 0 – 1 |
tag | string | null | |
...group | position, rotation, scale… |
P&ID
Small bow-tie on an instrument, sample, vent or drain line (NPS 1 and below) with a stem ending in a pointed needle at the seat; often unlabelled, next to a gauge or transmitter.
Usually drawn smaller than line valves and attached to instrument tubing. Many P&IDs show instrument root and manifold valves only as a generic small gate symbol, or not at all; treat them as detail unless asked.
npsratingtagTypical suppliers
Parker Hannifin · Hoke. 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/needle-valve.json, or copy a ready-made instruction:
Add the Deck Twin "Needle valve (instrument)" component to this project. Run `npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz add needle-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 needle-valve` for its props, ranges and ports. Render <NeedleValve /> 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