Performing pressure vessel design and analysis including nozzles, supports and appurtenances. This includes stress, thermal, seismic/ vibration and fatigue analysis to Engineering Codes as AWS, API and ASME B&PV – ensuring vessel structural integrity.

We have extensive experience in closed-form Design-By-Rule methods (ASME Section VIII Division 1) and finite element analysis with Design-By-Analysis (ASME Section VIII Division 2. This work includes:

  • Pressure Vessel Design & Analysis to ASME B&PV Section VIII
  • Independent Design Reviews – Pressure Vessels, Nozzles & Supports
  • Recertification Analysis of Aging Pressure Vessels
  • Fatigue Analysis of Vessels used to Produce Hydrogen
  • Elevated Temperature Design & Analysis of Pressure Vessels

Division 1 (Design by Formula) is a simple approach, using equations that produce a robust and proven conservative design. This approach works best on simple vessels, without any extreme geometric discontinuities (such as nozzles).
Division 2 (Design by Analysis) is often done with the use of finite element modelling to accurately predict stresses in complex vessels. This method provides room for reducing material usage while maintaining structural integrity.


  • Chemical Reactors
  • Accumulator Tanks
  • Process Decanters
  • Autoclaves
  • Cryogenic Vacuum Chambers
  • LNG Storage Tanks
  • Liquid Oxygen (LOX) Tanks
  • Liquid Nitrogen (LIN) Tanks
  • Liquid Ammonia Tanks
  • ASME Pressure Vessels
Finite Element Analysis (FEA) of Feedwater Heater
Vessel Analysis to ASME Code
FEA Model of PSA Vessel
PSA Vessel
Finite Element Analysis Model of a Pressure Vessel & Nozzles
Vessel with Nozzles
FEA Model of Feedwater Vessel
Feedwater Heater
FEA of Nozzle on Vessel
Vessel Nozzle

Types of Analysis

  • Stress Analysis
  • Vibration & Fatigue
  • Fitness for Service
  • Fracture Analysis
  • Design Optimization
  • Fabrication Process Evaluation
  • Heat Transfer
  • Thermal/Transient
  • Flow Analysis
  • Shock & Impact
  • Safety Evaluations
  • Elevated Temperature
  • Structural Integrity
  • Thermal Cycling
  • Creep Ratcheting

ASME Pressure Vessel Codes

  • B&PV Section III Class 1, 2 and 3 Vessels and Components
  • B&PV Section VIII Div. 1, 2 and 3 Vessels
  • B&PV Sections IX and XI

Additionally, we have worked with Codes including API, ASTM and AWS. Our Professional Engineers are licensed in numerous States, and multi-disciplined in areas of materials, design, metallurgy & manufacturing, each with more than 25 years of experience.


Contact us concerning your Pressure Vessel Design & Analysis Needs.

    We only accept business email addresses.

    (412) 835-5007

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