At 3P Tech Serv, we deliver specialist pressure vessel engineering services built on deep technical expertise and strict adherence to international codes and standards — helping manufacturers and OEMs design, verify, and certify pressure equipment with confidence.
From ASME Section VIII design services and pressure vessel FEA analysis to pressure vessel re-rating calculations and fatigue assessments, our engineering team provides accurate, code-compliant deliverables that support every stage of the pressure vessel lifecycle — from initial design through to ongoing operational integrity.
ASME Section VIII Design Services
Our ASME Section VIII design services cover the full scope of pressure vessel design in accordance with ASME VIII Div 1 and Div 2 requirements. We prepare detailed design calculations, wall thickness sizing, head design, and nozzle reinforcement calculations — ensuring every vessel is engineered to code from the ground up.
Pressure Vessel Stress Analysis Services
Our pressure vessel stress analysis services evaluate the mechanical integrity of pressure vessels under operating, hydrotest, and upset conditions. We assess shell and head stresses, nozzle junction behaviour, and support loading to ensure your vessel meets the required safety margins and design intent across all load cases.
Pressure Vessel FEA Analysis
Where standard hand calculations are not sufficient, our pressure vessel FEA analysis services provide a deeper level of design insight. Using SolidWorks and Inventor FEA tools, we model complex geometries, local stress concentrations, and non-standard loading conditions — giving you reliable results that stand up to third-party review and code compliance checks.
Pressure Vessel Code Compliance Services
Our pressure vessel code compliance services ensure your equipment fully satisfies the requirements of applicable design codes including ASME, PD 5500, and EN 13445. We review design documentation, identify any gaps against code requirements, and provide clear, actionable recommendations — reducing the risk of costly rework during inspection or certification.
Pressure Vessel Design Verification
Our pressure vessel re-rating calculation services help operators and manufacturers assess whether an existing vessel can safely operate at revised pressure, temperature, or service conditions. We perform full ASME VIII Div 1 calculation reviews against the new operating parameters, providing documented justification that supports re-rating decisions and regulatory submissions.
Nozzle Load Calculation Services
Our nozzle load calculation services assess the acceptability of piping-imposed loads on pressure vessel nozzles in accordance with WRC 107, WRC 297, and applicable vessel codes. We evaluate nozzle junction stresses under combined loading conditions, helping piping and vessel engineers resolve interface issues early and avoid costly design clashes.
Pressure Vessel MDMT Calculation
Our pressure vessel MDMT calculation services determine the Minimum Design Metal Temperature for pressure vessels in accordance with ASME VIII Div 1 requirements. This is a critical check for vessels operating in low-temperature or cold climate environments, ensuring the selected material and wall thickness combination is not susceptible to brittle fracture under design conditions.
Pressure Vessel Fatigue Analysis Services
For vessels subject to cyclic loading, our pressure vessel fatigue analysis services provide a rigorous assessment of accumulated fatigue damage over the intended design life. Using both code-based screening methods and detailed FEA-based fatigue evaluation, we identify critical locations, assess cycle counts, and recommend design modifications where required — ensuring long-term structural reliability.