Blind flange

Blind flange closing a line end or a spare branch: raised-face blind with bleed plug and eyebolt, spiral-wound gasket, stud bolts with two nuts and the mating weld-neck flange on a bevelled stub. Port A is the blind face, so a line ending here bolts straight onto it.

ASME B16.5ASME B16.47ASME B16.20ASME PCC-1
Drag to orbit, scroll to zoom
Parameters
– m

Installation

$npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz add blind-flange

Copies piping/blind-flange.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 { BlindFlange } from './components/deck-twin/piping/blind-flange'

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

Props

PropTypeDefaultRange
npsnumber (NPS, in)null
rating150 | 300 | 600 | 900 | 1500 | 2500null
schedule"10" | "20" | "40" | "STD" | "80" | "XS" | "160" | "XXS" | "10S" | "40S" | "80S"null
matingbooleannull
stubnumber (m)null0 – 1
tagstringnull
...groupposition, rotation, scale…

P&ID

P&ID symbol for blind-flange

A line ending in a flange bar followed by a thicker solid bar (or a filled half-circle cap): a blinded end or spare connection.

ISO 10628-2 / PIP PIC001 (piping)

A single solid bar across the line between two flange bars is a spade / blind in the line; a figure-8 is a spectacle blind. A line ending with a plain dome is a pipe cap (welded), not a blind.

Piping class (ASME B16.5 / B16.47) fields and the props they set
Nominal sizenps
Flange ratingrating
Wall scheduleschedule
Tag numbertag

Typical suppliers

Weldbend · Texas Flange. 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:

$npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz info blind-flange

Or fetch /r/blind-flange.json, or copy a ready-made instruction:

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