Equipment Life Journal — PV-001 Compressed Air Receiver
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|
| Document No. |
JDS-LOG-MEC-004 |
| Revision |
A |
| Date |
2026-03-25 |
| Status |
EXAMPLE |
| Author |
Nils Johansson |
1. Equipment Identity
| Field |
Value |
| Vessel ID |
PV-001 |
| Description |
Compressed air receiver, vertical |
| Manufacturer |
Atlas Copco |
| Model |
LT 500 |
| Serial No. |
AC-2018-4472 |
| Year of manufacture |
2018 |
| Date commissioned |
2018-09-14 |
| Location |
Göteborg Workshop — Compressor room |
| Design standard |
SS-EN 13445 |
| PED Category |
III |
| AFS 2017:3 Class |
A |
| Design pressure (PS) |
11 bar |
| Design temperature |
–10°C to +80°C |
| Volume |
500 L |
| PS × V |
5500 bar·L |
| Medium |
Compressed air (Group 2) |
| Material |
P265GH (shell), S235JR (saddles) |
| Wall thickness (nominal) |
8.0 mm |
| Corrosion allowance |
1.0 mm |
| Min. retirement thickness |
6.2 mm |
| Expected service life |
25 years (to 2043) |
| Relief valve |
SV-001 — set at 11.5 bar |
2. Lifecycle Timeline
| Date |
Age |
Event |
Description |
By |
| 2018-09-14 |
0 yr |
Commissioning |
New vessel installed, hydrostatic test 16.5 bar witnessed by Kiwa Inspecta |
Atlas Copco / KI |
| 2018-09-14 |
0 yr |
First inspection |
Initial external and internal inspection passed |
Kiwa Inspecta |
| 2019-03-10 |
0.5 yr |
Maintenance |
Condensate drain valve replaced (original valve leaking) |
N. Johansson |
| 2020-09-15 |
2 yr |
Scheduled inspection |
External inspection — no findings |
Kiwa Inspecta |
| 2021-06-01 |
2.7 yr |
Modification |
Automatic condensate drain timer installed (15 min cycle) |
N. Johansson |
| 2022-09-18 |
4 yr |
Scheduled inspection |
External inspection — minor surface rust on bottom saddle, wire-brushed and painted |
Kiwa Inspecta |
| 2023-06-15 |
4.8 yr |
Scheduled inspection |
Internal revision — no corrosion, wall thickness 7.9 mm (UT) |
Kiwa Inspecta |
| 2023-06-15 |
4.8 yr |
Relief valve test |
SV-001 tested, lifts at 11.4 bar — within tolerance |
Kiwa Inspecta |
| 2024-03-22 |
5.5 yr |
Maintenance |
Pressure gauge replaced (failed calibration check) |
N. Johansson |
| 2025-06-15 |
6.8 yr |
Scheduled inspection |
Internal revision — wall thickness 7.8 mm (UT), 0.1 mm loss over 2 years |
Kiwa Inspecta |
| 2025-06-15 |
6.8 yr |
Relief valve test |
SV-001 tested, lifts at 11.5 bar — OK |
Kiwa Inspecta |
3. Wall Thickness Trend
| Date |
Age (yr) |
Location |
Measured (mm) |
Loss from nominal |
Annual rate |
| 2018-09-14 |
0 |
Bottom shell |
8.0 |
— |
— |
| 2023-06-15 |
4.8 |
Bottom shell |
7.9 |
0.1 mm |
0.021 mm/yr |
| 2025-06-15 |
6.8 |
Bottom shell |
7.8 |
0.2 mm |
0.029 mm/yr |
Projected retirement: At current corrosion rate (0.029 mm/yr), minimum thickness of 6.2 mm will be reached in approximately 55 years from manufacture (2073). Well within the 25-year expected service life.
Assessment: Corrosion rate is low and stable. No accelerated degradation detected. Continue monitoring at 2-year intervals.
4. Maintenance Record
| Date |
Work Order |
Description |
Parts |
Duration |
By |
| 2019-03-10 |
WO-2019-008 |
Replace condensate drain valve |
1× ball valve DN15 PN16 |
1.5 hr |
N. Johansson |
| 2021-06-01 |
WO-2021-014 |
Install automatic drain timer |
Timer unit, solenoid valve, tubing |
3 hr |
N. Johansson |
| 2024-03-22 |
WO-2024-005 |
Replace pressure gauge |
1× Wika 233.50 0–16 bar |
0.5 hr |
N. Johansson |
5. Certificates & Documents
| Document |
Reference |
Date |
Held by |
| EC Declaration of Conformity |
Atlas Copco DoC-2018-4472 |
2018-08-20 |
Equipment file |
| Hydrostatic test certificate |
KI-2018-HT-4472 |
2018-09-14 |
Equipment file |
| Material certificate 3.1 (shell) |
Mill cert P265GH-2018-0442 |
2018-07 |
Equipment file |
| Inspection report 2023 |
KI-2023-IR-44721 |
2023-06-15 |
Equipment file |
| Inspection report 2025 |
KI-2025-IR-44721 |
2025-06-15 |
Equipment file |
| Relief valve test cert 2025 |
KI-2025-SV-001 |
2025-06-15 |
Equipment file |
6. Next Actions
| Action |
Due |
Responsible |
| External inspection |
2027-06-15 |
Kiwa Inspecta |
| Internal revision + UT measurement |
2027-06-15 |
Kiwa Inspecta |
| Relief valve SV-001 test |
2027-06-15 |
Kiwa Inspecta |
| Condensate drain timer service |
2026-06-01 |
N. Johansson |
Revision History
| Rev |
Date |
Author |
Description |
| A |
2026-03-25 |
Nils Johansson |
Example equipment life journal for JDS demonstration |