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V-1049 — Steam Condensate Vessel V-1049

Catalytic Reformer · Steam Condensate service · Installed Aug 26, 2010 (16 yrs in service)

Low
Current Min. Thickness
0.649 in
t-min 0.459 in
Measured Corrosion Rate
0.50 mpy
ML-predicted: 0.14 mpy
Remaining Life
60+ yrs
Next Inspection Due
Aug 19, 2036
Interval: 10.0 yrs (API 510)

UT Thickness Trend

Minimum CML reading per inspection vs. ASME Sec. VIII t-min

Vessel Specification

MaterialSA-516-70 Carbon Steel
Design CodeASME BPVC Section VIII, Div. 2
Joint Efficiency1.00
Design Pressure144 psig
Design Temperature164 °F
Operating Pressure116 psig
Operating Temperature111 °F
Diameter127 in
Nominal Thickness0.658 in
Corrosion Allowance0.1250 in
H2S / Chloride49 / 92 ppm
Flow Velocity11.6 ft/s
Process pH4.61
InsulatedNo

Corrosion & Remaining-Life What-If

Adjust operating conditions to see the live model-predicted corrosion rate and implied remaining life

Live Prediction — What-If Model
0.39 mpy
Predicted corrosion rate under these conditions (-0.11 mpy vs. current measured rate)
Implied Remaining Life
60+ yrs
Implied Reinspection Interval
10.0 yrs

What-if model: standardized Ridge regression, R² 0.56 on held-out fleet data (3.25 mpy MAE). Runs entirely client-side for instant feedback — see Model Insights for the full fleet-scale ensemble model used for official predictions.

Governing Damage Mechanism — General Corrosion

API 571 §4.2.1

Uniform thinning across the surface due to the process environment. Rate depends on fluid chemistry, temperature, and velocity.

Recommended inspection approach: UT thickness grid at fixed CMLs per API 510/572; trend over time to establish long-term rate.

Inspection History

UT thickness readings, most recent first

DateMethodCML CountAvg ThicknessMin CML Thickness
Aug 22, 2026UT Grid (API 572)80.6549 in0.6487 in
Nov 13, 2023UT Grid (API 572)80.6535 in0.6372 in
Apr 14, 2021UT Grid (API 572)80.6579 in0.6451 in
Nov 2, 2018UT Grid + RT80.6576 in0.6541 in
Jun 20, 2016UT Grid + RT80.6572 in0.6516 in
Nov 11, 2014UT Grid + RT80.6563 in0.6432 in
Sep 1, 2012UT Grid (API 572)80.6565 in0.6379 in