Pressure Equipment Design
Design and design assurance of new-build vessels, heat exchangers and pipework — to international codes.
Design, Integrity & Fitness for Service
Pressure-equipment engineering for Oil & Gas, Petrochemical and Power — keeping critical assets safe and in production.
30+ years of pressure-systems expertise
API 579 Level 1, 2 & 3 Fitness-for-Service
FEA to ASME VIII & PD 5500 codes
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Jamie Mathie
C.Eng., F.I.Mech.E.
Director & Principal Consultant
jamie.mathie@miSolutions.co.ukWho we are
Experience-based engineering solutions with a pragmatic approach to engineering problems.
An independent consultancy providing services to the pressure systems industry, providing deep code knowledge with real life experience, providing solutions you can use to make essential decisions for your business.
We know the codes, we don’t hide behind the codes.
JG
What we do
Services across the full equipment lifecycle
From new build design to in-service assessments, pointing you in the right direction to ensure code and legislative compliance.
Asset Integrity & Fitness for Service
Fitness-for-Service assessment of in-service pressure equipment across Oil & Gas, Petrochemical and Power.
Asset Integrity Management
Integrity management of pressure systems — from corrosion strategy to mechanical joint integrity, hose and defined-life repairs.
Pressure Equipment Legislation
Advice on UK legislation for the design, construction and use of pressure equipment.
Case study
Digital twins on mature assets?
“Only 1–2% of reported anomalies require a Level 3 assessment — and you can run a lot of Level 1 & 2 assessments for the price of setting up a single digital twin.”
For a 1st-stage separator on an FPSO with localised CUI wall-loss, we ran an API 579 Level 3 elastic-plastic FEA to confirm it remained fit for service — and kept the model on file for fast re-runs.
API 579Level 3 elastic-plastic FEA
~£20ktypical digital-twin build cost avoided
Why miSolutions
Engineering you can defend
Valid assessments come from understanding the loads and boundary conditions properly — that's where 30 years pays off.
Lean & competitive
The right assessment level for the anomaly — no overhead you don't need.
Experienced engineers
Experienced FEA and pressure-systems specialists on every job — no black-box guesswork.
Right data, right format
Inspection data gathered so it's genuinely usable — Excel for L1/2, STP/FEA for L3.
Get in touch
Let's talk about your pressure equipment
Tell us about the asset or assessment you need — we'll come back with a practical way forward.