Deck Twin

Weld-neck flange

Single forged weld-neck flange: tapered hub from the B16.5 / B16.47 hub diameter down to the pipe OD, B16.25 37.5° weld bevel with root land, bore matched to the pipe schedule and real drilled bolt holes. Raised face with a serrated finish, flat face, or ring-type joint with the B16.5 octagonal groove for the class. Optional butt-welded pipe stub; the rim carries a stamped marking.

ASME B16.5ASME B16.47 Series AASME B16.25ASME B16.20MSS SP-25
Drag to orbit, scroll to zoom
Parameters
– m

Installation

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

Copies piping/weld-neck-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 { WeldNeckFlange } from './components/deck-twin/piping/weld-neck-flange'

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

Props

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

P&ID

P&ID symbol for weld-neck-flange

In section: a flange disc with a long tapered hub narrowing to the pipe wall and a butt weld at the hub end. On P&IDs just a short bar across the line; on isometrics a bar with a weld dot.

tag WNASME B16.5 flange types drawn in half-section (GA / isometric detail convention); on P&IDs every flange is a short bar

The flange type comes from the piping class, not the P&ID. The long taper identifies weld-neck; slip-on and socket-weld have short hubs; lap-joint has a loose ring on a stub end.

Piping class / flange bill of materials (ASME B16.5 / B16.47) fields and the props they set
Nominal sizenps
Pressure classrating
Facingfacing
Bore (schedule)schedule
Tag numbertag

Typical suppliers

All Metals & Forge Group. 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 weld-neck-flange

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

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