Wellhead choke (API 6A)

Angle-body wellhead choke: forged block body with side inlet and bottom outlet, hammer-nut bonnet with three lugs, stem position indicator and handwheel, an electro-hydraulic stepping actuator, or a positive (fixed bean) blanking cap. API 6B/6BX end flanges sized from bore and working pressure; the 5,000 psi 6B bolt pattern matches ASME Class 1500, which is the class the ports report (10,000 psi reports Class 2500, the closest).

Installation

Copies wellhead/choke-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 { ChokeValve } from './components/deck-twin/wellhead/choke-valve'

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

Props

P&ID

An angle-body valve (side inlet, bottom outlet) or an in-line bow-tie with a diagonal arrow through it meaning adjustable restriction; a fixed (positive) choke has no arrow and a bean size note. Tagged HCV, PCV, FCV or CK.

tag CKtag HCVtag FCVtag PCVISA HCVISA HVISA FVISA PVISO 10628-2 / PIP PIC001 valves; API 6A / API RP 14C wellhead conventions (adjustable choke: valve body with a diagonal arrow)

The diagonal arrow = variable choke. An angle body with a spring is a PSV, not a choke. A globe control valve with a dome actuator can also do choking duty; then it is control-valve.

Choke valve datasheet (API 6A) fields and the props they set

Inlet borebore

Outlet boreoutletBore

Rated working pressurepressureRating

Operatoroperator

Tag numbertag

Typical suppliers

SLB (Cameron) · WOM (Worldwide Oilfield Machine) · Weatherford. 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/choke-valve.json, or copy a ready-made instruction:

Add the Deck Twin "Wellhead choke (API 6A)" component to this project. Run `npx -y https://decktwin.com/cli/deck-twin-0.2.2.tgz add choke-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 choke-valve` for its props, ranges and ports. Render <ChokeValve /> 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