ATLAS by ContraVault
P&ID Quantity Takeoff · AI-Powered

AI P&ID takeoff for piping estimators

Every valve. Every line. Every spec. Counted in hours, not weeks.

ATLAS reads every P&ID in your tender package, extracts every valve, instrument, equipment item and line, decodes each line number to its full pipe-class spec, and delivers a complete, priced scope takeoff — automatically. What takes your estimating team three weeks, ATLAS does in an afternoon.

Get a free P&ID takeoff in 48 hours See a live takeoff → Send one P&ID package from a live bid. No integration, no commitment.

Trusted by estimating teams at leading EPC, petrochemical and mechanical contractors

Shapoorji Pallonji Tata Projects thyssenkrupp Toyo Engineering Kalpataru
The arithmetic of manual P&ID takeoff

Bid-stage takeoff is the bottleneck on every tender you chase.

Before you decide whether to bid, someone has to read every P&ID and count everything in scope. It is the most time-consuming step in industrial estimating — and the one where a single missed item costs you the job.

30–60 min
To fully take off one dense P&ID, by hand
300+
P&IDs in a typical process-unit bid package
250+ hrs
Estimator-hours per bid, on P&ID takeoff alone
1 miss
One missed valve or spec break can sink a bid's margin
An estimating team running 30 bids a year spends 7,500+ hours on manual P&ID takeoff — the single biggest constraint on how many tenders you can pursue, and the biggest source of scope risk in every bid you submit.
What your estimator does right now

Sheet by sheet. Tag by tag. Against the clock.

STEP 1

Receive the bid package

A ZIP lands: 312 P&IDs, line lists, datasheets, specs and scope documents. The tender clock starts. You have three weeks to decide and price.

STEP 2

Open each P&ID in Bluebeam

Read the title block, find the latest revision, cross-check the line list in a second window. Then start reading the drawing body, symbol by symbol.

STEP 3

Tag and count every component

Valve by valve, instrument by instrument, line by line. Mark each one and type it into a master Excel takeoff.GV-1402 · 6″ gate valve · API600 · 150#

STEP 4

Decode every line number

Each line number carries its size, pipe class, service and insulation. Look up the spec, apply the class, repeat for hundreds of lines across the package.

STEP 5

Factor the bulk, check the scope

Estimate pipe, fitting and flange quantities from line counts and norms. Scan for tie-ins, spec breaks and battery limits. Under deadline, items get missed.

Miss one control valve on a dense P&ID and the whole package is under-scoped. A wrong pipe-class call puts the wrong material grade across an entire line. At bid stage these errors don't surface in contingency — they surface when you win the job and discover the scope you priced isn't the scope you signed.
The ATLAS pipeline

Upload. Extract. Verify. Export.

ATLAS processes each P&ID in minutes. Every sheet. Every revision. Every time.

01

Upload the full package

Drag and drop all 312 P&IDs at once. ATLAS processes them in parallel — any format, any vintage, any scan quality, including brownfield drawings from the 1990s.

02

OCR & symbol recognition

ATLAS reads every title block, tag and annotation and recognizes every P&ID symbol against ISA and ISO standards — structured output per sheet, in seconds.

03

Computer vision counts the components

A vision model trained on P&IDs detects and classifies every valve, instrument, equipment item and in-line specialty — cross-referenced against the line list. Nothing on the sheet goes uncounted.

04

Line-number decode → full spec

ATLAS reads each line number, queries the pipe-class database, and applies material grade, schedule, rating, fitting standard, insulation and service — automatically.

05

Estimator reviews — minutes per sheet

Every detected item is shown beside the source P&ID. Accept, edit or reject each one. Low-confidence detections are flagged in amber. You stay in the judgment seat.

06

Priced scope takeoff, exported

Valve list, line list, equipment count and a factored bulk MTO — priced from the ATLAS rate database, exported to Excel in your template, with a full audit trail to every source sheet.

Piping domain intelligence

Built by people who have read a P&ID.

Components ATLAS reads

  • Gate, globe, check, ball & butterfly valves
  • Control valves & actuated valves
  • Relief & safety valves
  • Instruments (transmitters, gauges, switches)
  • Pumps, vessels, exchangers, columns
  • Strainers, traps, sight glasses, blinds
  • Reducers & in-line specialties

What ATLAS derives automatically

  • Factored pipe quantity by line
  • Fitting & flange counts from line norms
  • Full pipe-class spec per line
  • Insulation type by service
  • Gasket & bolt sets from flange pairs
  • Scope flags: tie-ins, spec breaks, battery limits
  • Go / no-go scope summary

Drawing types supported

  • P&IDs (all revisions)
  • PFDs (for scope context)
  • Line lists & equipment lists
  • Datasheets & specifications
  • Scanned brownfield P&IDs
  • CAD exports (AutoCAD, SPPID)
  • Legacy & native file formats
Line number decoder
04 — PG — 1502 — A2
Unit 04Crude Distillation Unit
PGProcess Gas service
1502Line ID
A2Pipe class
Pipe class A2 → ASTM A106 Gr B SMLS · Schedule 80 · ASME 150# · butt-weld ends · A234 WPB fittings · A105 flanges · spiral-wound gasket · A193 B7 bolts · 10% RT NDT — applied to every line on the sheet in zero seconds.
Manual vs ATLAS

~90% of every takeoff hour, automated.

Task
Manual
ATLAS
Saving
Open sheet, read title block
2 min
Auto
100%
Identify & tag valves / instruments
10–15 min
Seconds
95%
Count & classify equipment / specialties
5–8 min
Auto
95%
Decode line numbers, apply pipe class
8–12 min
Auto
100%
Factor bulk pipe & fittings
5–8 min
Auto
90%
Log into master takeoff
5–8 min
Auto
100%
Per P&ID
35–55 min
3–5 min review
~90%
312 P&IDs: Manual takeoff — 250+ hours. ATLAS — minutes to extract, ~20–25 hours of estimator review. You get your scope back before your competitors have finished opening the package.
From bid to build

One engine, from first P&ID to fabrication-grade MTO.

P&ID takeoff is where you start — fast, on every bid, before you commit. When you win the job and detailed engineering produces isometrics, ATLAS goes deeper: a complete, dimensioned, fabrication-grade material takeoff with exact lengths, weld counts and derived consumables. The same audit trail, carried from estimate to construction.

P&ID scope takeoff → Win the bid → Isometric MTO → Fabrication
The knowledge flywheel

Every sheet reviewed makes the next bid faster.

Every item accepted, corrected or rejected writes back into the knowledge database — what was accepted, what was corrected, what rates applied. Over time, ATLAS learns the specific drawing conventions, symbol libraries and pipe classes of each client.

MONTH 1

First bid with ATLAS. Estimator reviews every detection. Full audit trail established for the package.

MONTH 6

Database populated. The same package type now takes half the review time. Model calibrated to your line-number conventions and symbol set.

MONTH 18

ATLAS knows your clients, their pipe classes and their drawing standards. First-pass scope accuracy above 98%. Review becomes spot-check.

Designed for honest automation

ATLAS automates the reading. Your estimator keeps the judgment.

What ATLAS handles

  • Reading every P&ID in the package
  • Counting every valve, instrument, equipment item & specialty
  • Decoding line numbers & applying pipe class
  • Factoring bulk pipe & fitting quantities
  • Flagging tie-ins, spec breaks & battery limits
  • Building the master scope takeoff
  • Exporting in your format with a full audit trail

What stays with your estimator

  • Deciding whether the scope interpretation is correct
  • Identifying spec breaks & class changes
  • Engineering judgment on constructability
  • Scope interpretation from the ITB
  • Commercial & risk assessment
  • The go / no-go decision
  • Final sign-off on every quantity
The bid that takes three weeks in month one takes five days in month six. Not because the AI changed — because the database is fuller.
Free 48-hour takeoff

Run ATLAS on your next live bid.

Send us a real P&ID package from an active tender. We run a full ATLAS extraction and return a complete valve, line and equipment takeoff — alongside your manual process, so you can compare the outputs yourself. No commitment, no integration, no change to your current workflow. Just proof.

01

Send us the P&IDs from a live bid — 20 sheets or 300.

02

ATLAS extracts the full scope takeoff in parallel with your team.

03

Compare outputs side by side. You decide what it's worth.

Request your free takeoff → Results typically returned within 48 hours. Covered under NDA.

Your drawings stay private.

All documents are processed in an isolated environment with AES-256 encryption in transit and at rest. We never train on your project data.

AES-256 encryption Isolated processing No training on your data SOC 2 Type II — in progress

Fits your existing stack.

ATLAS exports scope and MTO data in any format your team uses. Native Excel export, Procore and Aconex compatible, with an API available for ERP integration.

Excel Procore Aconex REST API
Frequently asked

P&ID takeoff, answered.

What is P&ID takeoff?

P&ID takeoff is the process of reading a set of Piping and Instrumentation Diagrams and counting everything in scope — every valve, instrument, equipment item, in-line specialty and line — then decoding each line number into its pipe class so a contractor can size and price a bid. It is the first quantity takeoff in any process-piping estimate.

How long does manual P&ID takeoff take?

A dense P&ID takes a senior estimator 30 to 60 minutes to take off by hand. A typical process-unit bid package contains 300 or more P&IDs, so manual takeoff consumes 250-plus estimator-hours per bid — the single biggest constraint on how many tenders a team can chase.

What does ATLAS extract from a P&ID?

ATLAS extracts every valve, instrument, equipment item and in-line specialty on the sheet, reads and decodes every line number into size, pipe class, service and insulation, factors bulk pipe and fitting quantities, and flags tie-ins, spec breaks and battery limits — then exports a complete, priced scope takeoff to Excel.

Can AI read scanned or brownfield P&IDs?

Yes. ATLAS processes scanned, photographed and legacy brownfield P&IDs — including drawings from the 1980s and 1990s — alongside native CAD exports. Low-confidence detections are flagged for estimator review rather than guessed.

How accurate is automated P&ID takeoff?

ATLAS detects and classifies components at high first-pass accuracy and improves on every bid as it learns a client's drawing conventions and symbol libraries. Every detection is shown beside the source drawing for accept, edit or reject, so the estimator signs off on the final count.

Does ATLAS replace the estimator?

No. ATLAS automates the reading — opening every sheet, counting every component, decoding every line. The estimator keeps the judgment: interpreting scope, identifying spec breaks, assessing constructability and commercial risk, and signing off on every quantity.

Get started

See your scope before your competitors open the package.

Send one live P&ID package. Get a complete, priced takeoff back in 48 hours.

Get a free P&ID takeoff →