COMPLIANCE

Structural Verifications and FEM Analysis of Plants

Structural analysis determines the distribution of internal forces, moments, stresses, deformations, and displacements within a structure or its components.

Our services include:

• Structural verifications using the Finite Element Method (FEM)
• Verification of pressure vessels in accordance with European standards, ASME, and API 650
• Plant sizing
• Development of PFDs (Process Flow Diagrams) and P&IDs (Piping and Instrumentation Diagrams)
• Preparation of component data sheets, operational manuals, and piping layouts

All our structural verification and FEM analysis activities are carried out with a strong focus on regulatory compliance and plant safety.

RELIABILITY

Efficiency Control of Pipes and Supports

Among our specialized services is the efficiency control of piping systems and supports — a critical activity to ensure plant safety and long-term reliability. Using a proven methodology, we reduce pipe stress and help restore the system to optimal design conditions.

Our intervention includes:

• Verifying the main loads on pipes and supports to identify high-stress areas in critical lines
• Proposing corrective solutions to restore piping integrity and address anomalies or defects in support systems
• Performing spring hanger balancing to ensure proper load distribution

CALIBRATION

Pressure Vessel Sizing

3Units provides pressure vessel sizing services in full compliance with ASME, EN, and PD5500 standards. We use specialized software to ensure maximum accuracy when evaluating key components such as heads, cylindrical shells, and conical transitions.

Our services also include:

• Verification of operational stability and evaluation of occasional loads, including wind and seismic forces
• Nozzle sizing and definition of allowable loads according to WRC, EN, or PD5500
• Sizing of non-pressure components upon request

SUPERVISION

Computational Fluid Dynamics (CFD)

Computational Fluid Dynamics (CFD) is a fundamental tool for optimizing design. At 3Units, we use CFD to perform advanced analyses of heat transfer and thermal comfort, enabling both cost savings and qualitative improvements for our clients.

CFD has a wide range of applications. Through detailed simulations, we design closed ventilation systems that ensure maximum comfort and reduce fire risk in buildings and complex infrastructures such as tunnels, railway stations, airports, and industrial facilities. By integrating CFD into the design process, we help optimize your projects for a safer, more efficient, and sustainable future.