Process and plant engineering
Turn scanned P&IDs into tag lists before your next HAZOP
Corvic reads legacy P&ID sheets and writes the equipment list, instrument index and line list. Lines are traced across off-page connectors. Every row points to the sheet and zone it came from, in the XML or CSV layout you already load.
Accounts are free. No credit card needed.
Or click through a P&IDScanned PDF · 200-PID-201 · Rev D
Northfield Chemical, Unit 200 feed preheat
Equipment, instrument and line list
0/4 eq · 0/6 inst · 0/3 lines
Waiting for the sheet.
The problem
Your drawings and your register stopped agreeing years ago
Plant data sits in sheets nobody has time to reread. The cost lands on whoever signs off the PHA, the MOC or the next CMMS load.
01
Thousands of sheets, none of them searchable
Decades of P&IDs live as scanned PDFs and vendor DWGs. Building an equipment or line list means reading every bubble by hand. A redraw shop sends back clean vectors, not data.
02
PHA revalidation needs current PSI
OSHA 1910.119 lists P&IDs as process safety information and requires PHA revalidation every 5 years. Sessions stall when a line runs off one sheet and nobody can say where it lands.
03
The register drifted from the field
Tags in the CMMS don't match the sheet. Spares are missing and retired equipment lives on. NIST put the labor cost of checking facility information against what is installed at $4.8 billion a year (2004 study).
What Corvic does
The P&ID work your team does by hand today
Each workflow runs as an agent on your drawings and records. Every result cites the sheet it came from, so an engineer can check it against the drawing.
Digitize legacy P&IDs
Send scanned PDFs, TIFFs or CAD exports. Corvic tiles each sheet, reads ISA-5.1 symbols and tags, and stitches each line across off-page connectors.
Equipment list, instrument index and line list, with sheet and zone on every row
Write to your import format
Give us the target layout, such as DEXPI XML or the CSV template your CMMS team loads. Corvic fills that exact format and lists the fields it could not fill.
A load file in your schema, plus the items held for engineer review
Check drawings against the register
Compare extracted tags with your CMMS export, instrument index and line list. Mismatched tags, missing spares and orphan records come back as one review list.
Discrepancy list with the drawing value, register value and source for each
Prepare PHA and MOC reviews
Ask what sits downstream of a pump or which valves isolate a drum. Corvic answers from the connection graph across every sheet, not one drawing at a time.
Equipment and line lists for each HAZOP node or MOC, cited to sheet and revision
Search the whole P&ID library
Engineers ask in plain English. Which vessels tie into the flare header. Which control valves on Unit 300 fail open. Each answer opens the tag on its sheet.
Answers linked to the exact tag and sheet
Trace root cause across sources
Line up historian trends, work orders and inspection records for one asset. Corvic builds the event timeline and ranks likely causes with the evidence for each.
RCA timeline and ranked causes for the reliability review
Try it
Click any tag and see what it connects to
This is sheet 202 of a fictional stripper unit after Corvic extracted it. Click a symbol to see its record and its upstream and downstream lines. Then run the register check and resolve 5 mismatches.
Northfield Chemical · 200-PID-202 rev D
V-203
Reflux drum
- Size
- 1.2 m ID x 3.6 m T/T
- Design
- 3.5 barg at 120 °C
- Material
- CS
- via 6"-P-2021-A1A
- via 4"-P-2030-A1A
- via 4"-P-2030-A1A
- via 3"-P-2022-A1A
- Equipment datasheet DS-V-203
- PHA 2022, node 4
Source: 200-PID-202 rev D, zone C2
How it works
Start with one unit, then cover the site
Corvic reads drawings and records where they already sit. No drawing migration and no new engineering tool.
- 1
Send one unit
Share 10 to 30 sheets and the import template you load today. Corvic connects to the folder or bucket that already holds the drawings.
- 2
Check the first lists
Your engineers compare rows with the sheet side by side. Anything the audit pass could not confirm arrives flagged, with the reason.
- 3
Run it on every revision
Deploy the workflow as a Playbook. New revisions and MOC redlines go through the same steps on a schedule, so the lists stay current.
Microsoft 365
Google Drive
AWS S3
Azure Blob Storage
Snowflake
Databricks
PostgreSQLProof
Ranked first on a blind P&ID extraction test
In June 2026 we gave Corvic, Claude Opus 4.8 and ChatGPT GPT-5.5 two sheets from a real unit drawing. Each had to produce XML in a client-specified schema. Outputs were scored blind. Corvic ranked first on both sheets.
91.0%
Client format compliance
83.5%
Equipment, instrument and piping accuracy
80.5%
Full usable XML
~5 min
Per sheet through a deployed workflow
Causal factor investigation
Unified manufacturing logs and inspection data for root cause work. 20x faster issue detection and $20M+ in cost savings.
P&ID Analysis playbook
OCR, tiling, element extraction, XML merge and an audit pass that sends uncertain items to review.
P&ID Knowledge Base agent
Turns scanned and CAD P&IDs into a knowledge graph engineers can query in plain English.
Root Cause Intelligence agent
Builds an incident timeline from maintenance, sensor and inspection records and ranks causes with evidence.
Sensor Data Intelligence agent
Learns normal operating envelopes from historian and SCADA data and flags deviations that precede failures.
Pharma CMC dossiers
A top 10 pharmaceutical company cut regulatory dossier time by 80% with 5x throughput.
Security
Your drawings stay under your control
A detailed P&ID shows how a plant works and how it can fail. FERC treats some of them as critical energy infrastructure information. This is how Corvic handles them.
SOC 2 Type II
Corvic is SOC 2 Type II. Drawings are encrypted with AES-256 at rest and TLS 1.2+ in transit. Sign in with your SSO.
Private VPC deployment
Run Corvic inside your own cloud account, with tenant isolation and encryption keys your team manages.
Permissions follow the source
Access is scoped per person and per source. A contractor who can't open a unit's folder can't query its sheets.
You choose the model
Use OpenAI, Anthropic, Google, xAI or open-source models, or your own endpoint. Zero-data-retention options apply where the provider offers them.
Every value cites its sheet
Each extracted value links to the sheet, revision and zone it came from. A checker opens the exact spot on the drawing.
Removal on demand
GDPR and CCPA compliant. Delete drawings and extracted data when a project closes.
Common concerns
What engineers raise first
Agreed, so every row links to the sheet, revision and zone it came from. On our June 2026 benchmark Corvic scored 83.5% on equipment, instrument and piping accuracy, against 63.8% for Claude Opus 4.8 and 60.0% for GPT-5.5. That test covered two sheets from one facility, scored blind by AI evaluators. Plan on engineer review, and we will measure it on your own sheets.
Faded sheets lower confidence, and Corvic shows you where. An audit pass checks each extraction against the image and lists what it could not confirm. Uncertain items go to review instead of into the file. Send your worst sheets in the pilot.
Corvic writes the file, and your team loads it. Give us your functional location template, load sheet or DEXPI schema, and the output matches that format. Corvic does not ship a native SAP or Maximo connector.
Deploy Corvic in a private VPC with tenant isolation and keys you manage. Access follows per-person and per-source permissions, and data can be removed on demand. Tell us your CEII and export control requirements before the pilot.
Keep them. Corvic handles the legacy sheets that never made it into those tools and writes them in the import layout you specify.
Start with that unit. Corvic onboards you with your own data, and your first answer is 24 hours away. The extracted lists and line traces then feed the node packages.
You pick it. Choose OpenAI, Anthropic, Google, xAI, an open-source model or your own endpoint, and swap models in config. You can run one sheet across models and compare quality, latency and cost.
We price a pilot on sheet count and where Corvic runs. Scope one unit, check the lists, then decide on the rest of the site. Ask for a quote on the demo call.
Send us one unit. Get the lists back.
Pick the unit with the oldest drawings. We return the equipment list, instrument index and line list in your format, with every row linked to its sheet.
Accounts are free. No credit card needed.
Read the P&ID benchmark