Nuclearn Link for P&IDs Book a demo
NEW Nuclearn Link for P&IDs

Your P&IDs,
finally connected.

Nuclearn Link turns the P&ID PDFs and scans you already have into one connected plant. Scope a clearance across sheets, see what any valve or pump ties into, and let AtomAssist, Claude or Copilot answer from the actual piping.

Book a demo See what it does
  • Works on the drawings you already have
  • Runs on your own hardware
  • Signs in through Nuclearn
Nuclearn Link showing a component cooling water P&ID with every component and line it found outlined, pipes in blue and signal lines in violet, and a side panel listing the four sheets this one continues on.

Screenshots on this page show publicly available P&IDs from the NRC's ADAMS library, as they appear in Nuclearn Link today.

  • Backed by NuclearnAI software built for nuclear plants since 2021
  • Over 70 facilitiesNuclearn products serve sites in North America and the U.K.
  • ISO/IEC 27001:2022Certified information security management
Why teams use it

One connected set of drawings for every job that depends on them.

Clearances, walkdowns, work planning, troubleshooting and AI assistants all start with the same question: what is this connected to? Link answers it across every sheet.

Work control

Clearances and tagouts

Pick the component you're working on and get its isolation boundary across every linked sheet: valves to close, drains and vents, relief paths, and anywhere the boundary is still open.

See isolation → Engineering

Connected components

Click any valve, pump, tank or instrument and see what it connects to, by pipe or signal line, on this sheet and the next.

See connections → Operations

Follow a line across sheets

Off-page connectors become links. Jump to the next drawing and back instead of hunting through a stack of PDFs for the matching note.

See linked sheets → Everyone

AI assistants that know the piping

AtomAssist, Claude and Copilot answer drawing questions from the connected plant: what's on this line, what isolates this pump, where does this go next.

See AI answers → IT and developers

Agents and integrations

An MCP server and a REST API let your own agents and tools search drawings, trace lines and pull isolation boundaries, with the same sign-in and roles.

See MCP and API → Everyone

Find anything, see the whole plant

Find a tag on any sheet, search the drawing library, and see a facility's drawings laid out as one connected map.

See the plant graph →
The problem

The drawings exist. The connections between them don't.

At many plants the P&IDs are PDFs and old scans. Nothing ties one sheet to the next, so scoping a clearance or checking what a job touches means pulling the system drawings and tracing lines by hand, sheet by sheet.

Following one line across four or five drawings means flipping between PDFs and matching off-page notes by eye. Redrawing everything in CAD first is slow and expensive.

Link starts from the drawings you already have.

$440K1
per reactor unit, per year

INL's estimate of what four work-management steps cost today when each is done by checking the work against system drawings: clearance order requests, and reactivity, redundant-SSC and containment/heat-removal effect checks. Online work only, at $200/hr.

8–16 h2
to redraw one sheet by hand

What P&ID conversion vendors estimate a manual redraw takes. One vendor prices it at $300–600+ a sheet. At the GSA CALC median drafter rate, about $68/hr, that is roughly $540–1,090 a sheet.3

INL's figures are its estimates of what these steps cost now, not savings from Nuclearn Link; its step times are expert estimates and vary by plant. Outage work is not included. Sources at the foot of the page.

How it works

Up and running on the drawings you already have

No redraw, no CAD conversion project. Drop in the drawings and start asking.

Drop in your drawings

PDFs of any length, scans, image files, zip archives and MicroStation DGN files. If you have a drawing index, add it as a spreadsheet to name the sheets.

.pdf.tif.png.jpg.zip.dgnindex.csv

Link connects them

AI reads every sheet into its valves, pumps, tanks, instruments, pipes and signal lines, and joins the sheets at their off-page connectors.

Trace, isolate, ask

Use it in the browser, or ask from AtomAssist, Claude, Copilot and your own agents. Everyone works from the same connected drawings.

Clearances and tagouts

Scope a clearance across every sheet it touches.

Pick a component and Link follows its isolation boundary through the off-page connectors onto the next drawings. You get a numbered list of valves to close, the drains and vents, the relief paths, and the check and power-operated valves it won't count on.

CloseValves to close, numbered across sheets. A valve of unidentified type is still counted and flagged to confirm.
Drain or ventDrains and vents inside the boundary.
ReliefRelief paths the boundary reaches.
Not creditedCheck and power-operated valves, which are never counted as closing it.
Not closedEvery open end, and every link between sheets that hasn't been confirmed.

Link shows its work: open ends, unconfirmed links and the rules it applied. It's the starting point for the clearance writer, checked against the drawings, not a substitute for them.

Isolation boundary for a valve across two sheets: the boundary traced in green, valves to close numbered in red, and a panel listing nine valves on two sheets. The connected sheet, opened from the boundary list, with the boundary still drawn and valves seven to nine marked.
The boundary carries onto the next sheet and stays drawn when you open it.
Connected components

See what anything connects to, even off the page.

Select any component to see what it's connected to. When a line runs off the sheet, Link shows where it continues and takes you there, then back. When a connector match is uncertain, it shows both ends side by side so it can be confirmed in one click.

  • Pipes and signal lines told apart on the drawing.
  • Linked, suggested and missing sheets clearly marked on every connector.
  • Sheets only link within their own facility, so two plants never cross.
The link check: the off-page connector on this sheet on the left, the matching connector on the named sheet on the right, with Not a match and Confirm link buttons. A selected off-page connector, with a button to the sheet it continues on and the valve it connects to.
"Does the line continue here?" Both sheets, side by side.
Plant graph

See the whole plant, not one page at a time.

The plant graph lays out a facility's drawings joined by their connections, so you can see how the systems tie together. Drill into components to see the valves, instruments and equipment across the sheets you pick, drawn with ISA-style symbols, and double-click anything to open it on its drawing.

  • One facility at a time; plants are never mixed.
  • Find a sheet, tag or component type on the map.
The plant graph: about two hundred P&ID sheets of one facility drawn as nodes, joined by orange lines for the connector links between them. Close-up of the component graph: valves, instruments and equipment drawn with ISA-style symbols and joined by their connections.
A facility's drawings joined by their connections, and the components across them.
Corrections

Spot something off? Fix it in a click.

Old drawings are messy. When Link misreads a symbol or misses a connection, fix it right on the drawing: mark it wrong and it disappears, change its type, add the missing symbol or draw the missing line. Keyboard shortcuts keep it fast.

  • Fixes stick: they carry over every time Link reads the drawings again.
  • Set a valve's normal position; isolation flags normally closed valves to verify.
  • Every change is recorded with who made it and when.
A guided pass on a sheet: one instrument highlighted on the drawing and a panel asking whether it connects to anything, with Correct, Not a component, Change type and Connect to buttons.
A guided pass through anything Link was unsure about.
AI assistants and agents

Give your AI the plant's actual piping.

Link puts the connected drawings behind an MCP server and a REST API. AtomAssist, Claude, Copilot and your own agents can search drawings, follow lines across sheets and pull isolation boundaries, and they get the open ends too, so gaps aren't papered over.

Assistant + Nuclearn Link MCP
What do I need to close to isolate V188 on component cooling water?
find_componentisolation_across_sheets
Across M-22EG01 and M-22EG02, close 9 valves: V189, V313, V213, V009, V004 and V008 on M-22EG01, then V020, V205 and V019 on M-22EG02. The type of V313 and V019 wasn't identified, so confirm they isolate. The boundary also crosses one link between sheets that hasn't been confirmed. Check these against the drawings before you write the clearance.

Example answer composed from the isolation result shown above. Link's isolation tools tell the assistant their result is not a clearance authority.

search_drawingsSearch the drawing library
find_componentFind a component on a sheet
follow_flagFollow an off-page connector to the next sheet
isolation_boundaryIsolation boundary on one sheet
isolation_across_sheetsFollow the boundary across linked sheets
view_regionLook at the region of the drawing in question
// MCP server: streamable HTTP, same sign-in as the web app
{
  "mcpServers": {
    "nuclearn-link": {
      "type": "http",
      "url": "https://link.your-site.example/mcp",
      "headers": { "X-API-KEY": "<Nuclearn platform API key>" }
    }
  }
}
The Connect an app or assistant dialog, showing the REST API address and the MCP server address, authenticated with a Nuclearn platform API key in the X-API-KEY header.

Access uses a Nuclearn platform API key, so the platform's sign-in, roles and licence apply. For AtomAssist users the connection is included, and the data stays inside Nuclearn.

Built for real drawing sets

Made for decades-old drawings, not tidy CAD files

Scans and aperture cards, not just CAD exports

Link reads raster scans as well as vector PDFs and MicroStation DGN files, because that's what plants actually hold. No redraw needed to get started.

Find a tag

Press / to find a tag, type or connector text on the sheet.

A drawing library

Search by drawing number or title, filter by status, and open any sheet in a click.

Bulk import

A zip of drawings or a PDF of any length. Imports run in the background while you work.

Facilities kept apart

Every sheet belongs to a facility, and links never cross between plants.

Your platform's people and roles

Sign-in goes through the Nuclearn platform, so the same accounts and SSO apply, and platform roles decide who can make corrections and who can import. Link keeps no users or passwords of its own.

Deployment and security

On your hardware. Signed in through Nuclearn.

Your drawings and everything Link builds from them stay in one data volume on the site's own hardware, and access goes through the Nuclearn platform.

One container at your site

Link runs as one container on your own hardware, on a GPU server or, more slowly, on CPU. All of its data lives in one volume there.

No internet access needed

It needs no internet access and reaches only the Nuclearn platform for sign-in. The container's root file system is read-only.

Nuclearn platform sign-in

Single sign-on for people already signed in to the platform; otherwise the platform's own SSO providers or password. No separate user store.

Licensed and role-limited

Sign-in works only where the platform's licence includes Link, and access can be limited to platform roles.

Keyed access for tools

Claude, Copilot and in-house tools reach the REST API and the MCP server with a Nuclearn platform API key.

A certified company

Nuclearn is ISO/IEC 27001:2022 certified. The web app, API and MCP server are switched on per deployment.

Ways to use it

Choose how your people reach it.

The web app, the REST API and the MCP server are offered separately. AtomAssist users get the connection included.

Planners, engineers, operators

Web app

The drawing library, sheet view with find-a-tag, linked sheets, isolation boundaries, corrections and the plant graph.

In-house tools

REST API

Documented at /api/v1: drawings, sheets, connections, links between sheets, isolation and imports.

Claude, Copilot, agents

MCP server

Search drawings, find a component, follow an off-page connector, get an isolation boundary on one sheet or across sheets, and view a region of the drawing.

AtomAssist users

AtomAssist Included

AtomAssist reaches Link whichever other services a site has, and the data stays inside Nuclearn.

What it is not

Link is not a CAD redraw and not a clearance or tagout system. It's the connected map those jobs start from: check its boundaries against the drawings before relying on them.

FAQ

Questions plants ask first

Do we need to redraw our P&IDs first?

No. Link works from the PDFs, scans and MicroStation files you already have. It doesn't produce CAD files; it builds a connected model of the components and lines it finds, which your own tools can also read through the REST API.

Can we rely on the isolation boundary?

Use it as the starting point. It lists the valves to close, drains and vents, relief paths and the valves it doesn't credit, and it names every open end and every link between sheets that hasn't been confirmed. Link is not a clearance or tagout system and doesn't replace the clearance writer's judgement.

What drawings can we import?

PDFs of any length (every page becomes a sheet), MicroStation DGN files (every sheet model becomes a sheet), PNG, JPEG, TIFF and WebP images, and zip files of any of these. An optional index spreadsheet (file, page, drawing, sheet, revision, title) names the sheets. Imports run in the background and show their progress.

What happens to our corrections when Link is updated?

They're kept. Every correction is recorded with who made it and when, and it carries over when the drawings are read again, including by a newer version of Link.

Where does it run, and what does it connect to?

It runs as one container on your own hardware, with a read-only root file system and all of its data in one volume. It needs no internet access and reaches only the Nuclearn platform for sign-in. People sign in through the Nuclearn platform; tools use a Nuclearn platform API key.

Which assistants can use it?

Any assistant or agent that can use an MCP server or call a REST API: AtomAssist, Claude, Copilot and your own agents. Access uses a Nuclearn platform API key, so the same sign-in, roles and licence apply as in the web app. Drawing data goes to whichever assistant you connect, so connect the ones your site has approved.

Book a demo

See a line followed across sheets.

We'll show a clearance boundary scoped across sheets, connected components, linked drawings and an AI assistant answering from them, on real plant drawings, and answer your IT team's questions about deployment and sign-in.

  • A live walkthrough on publicly available plant P&IDs
  • Your questions on deployment, sign-in and data
  • Where connected drawings would save your teams the most time

Nuclearn Link is backed by Nuclearn, whose products serve over 70 facilities in North America and the U.K.

Book a demo

Tell us a little about your site and we'll set up a time.

Prefer email? contact@nuclearn.ai