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Equipment Register — Pressure Vessels

   
Document No. JDS-LOG-MEC-001
Revision A
Date 2026-03-25
Status CURRENT
Author N. Johansson

What Is This?

This is the master inventory of all pressurised vessels under your maintenance program. Every vessel gets one row. This register is the single source of truth for what equipment exists, what condition it’s in, and when it needs attention.

Think of it as the ship’s engine room logbook, but for pressure vessels.

How to Use This Register

  1. Add a new vessel — Fill in one row per vessel. Every field matters.
  2. Update after inspection — After each inspection, update the “Last Inspection” and “Next Inspection” columns.
  3. Review quarterly — Check that no vessel has passed its next inspection date without action.
  4. Revision — When you add or remove vessels, create a new revision (A → B → C).

Equipment Register

Column Definitions

Before filling in the register, here’s what each column means:

Column What to write Example
Vessel ID Your unique identifier for this vessel. Use a logical system. PV-001
Description What it is, in plain language Compressed air receiver
Location Where it is physically installed Machine hall, bay 3
Manufacturer Who made it (from the nameplate) Atlas Copco
Year Year of manufacture (from the nameplate) 2018
Serial No. Manufacturer’s serial number AC-2018-44521
Design Pressure Maximum allowable pressure (from nameplate) 11 bar
Design Temp Maximum allowable temperature 200°C
Volume Internal volume in litres 500 L
Medium What’s inside the vessel Compressed air
Class Regulatory classification (see regulations folder) Class A / B / C
Inspection Interval How often it must be inspected (from regulations) 24 months
Last Inspection Date of most recent inspection 2025-06-15
Next Inspection When the next inspection is due 2027-06-15
Inspector Who performed the last inspection DEKRA / Kiwa / Internal
Certificate Ref Reference number of the inspection certificate DEKRA-2025-12345
Status Current operational status IN SERVICE / OUT OF SERVICE / DECOMMISSIONED
Notes Anything important — defects found, repairs pending, etc. Minor corrosion noted on weld seam

The Register

Copy the tables below and fill in your vessels. Add rows as needed. All tables are linked by Vessel ID.

Table 1 — Vessel Identification

Vessel ID Description Location Manufacturer Year Serial No. Status
PV-001 Air receiver Machine hall Atlas Copco 2018 AC-44521 IN SERVICE
             
             

Table 2 — Design Parameters

Vessel ID Design Pressure Design Temp Volume Medium Class
PV-001 11 bar 200°C 500 L Air B
           
           

Table 3 — Inspection Tracking

Vessel ID Insp. Interval Last Inspection Next Inspection Inspector Certificate Ref Notes
PV-001 24 months 2025-06-15 2027-06-15 DEKRA DK-2025-123 Example row — replace with real data
             
             

Vessel ID Naming Convention

Use a consistent naming system for vessel IDs. Suggested format:

[TYPE]-[NUMBER]
Type Code Meaning Example
PV Pressure Vessel (general) PV-001
AR Air Receiver AR-001
HE Heat Exchanger HE-001
ST Steam Vessel ST-001
BL Boiler BL-001
AC Accumulator (hydraulic) AC-001
CY Cylinder (gas) CY-001

If you manage multiple sites, add a site prefix:

[SITE]-[TYPE]-[NUMBER]
Example: MALMO-AR-001 (Air receiver #1 at Malmö site)

Status Definitions

Status Meaning Action
IN SERVICE Vessel is operational and compliant Maintain inspection schedule
OUT OF SERVICE Vessel is not currently in use but still installed Still requires periodic inspection in most jurisdictions
REPAIR PENDING Defect found, awaiting repair Schedule repair before next use
DECOMMISSIONED Permanently removed from service Document the removal, update register

Inspection Overdue Alert

Any vessel where today’s date is past the Next Inspection date is overdue. Overdue vessels must be:

  1. Taken out of service immediately (or risk assessed)
  2. Inspection scheduled as soon as possible
  3. Flagged in the Notes column: “OVERDUE — [action taken]”

Adapting This Register for Different Countries

This register is country-neutral. The columns work everywhere. What changes between countries:

What changes Where it’s defined
How “Class” is determined 02-regulations/[country]/
What the inspection intervals are 02-regulations/[country]/
Who is qualified to inspect 02-regulations/[country]/
What certificates are required 02-regulations/[country]/

The register itself stays the same. Only the values in the Class, Inspection Interval, and Inspector columns change based on which country’s rules apply.

Revision History

Rev Date Author Description
A 2026-03-25 N. Johansson Initial release — framework template with examples and naming convention