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Design & Calculation


Technical Engineering & Calculations

Contract Engineering & Capacity Extension

You have a project – and the engineering and calculations need to be right. Tight deadlines, complex interfaces, international standards: we take technical responsibility from day one. Whether it's a single assembly or a complete plant project, structural steel, mechanical engineering, or pressure vessels – we deliver code-compliant, production-ready documentation that your fabricator and assembly team can work with directly. No queries, no rework, no lost time.

We identify risks early, keep interfaces clean and think ahead from the first drawing to the last weld – so your project stays on schedule.

3D model of a pressure vessel with nozzle and manhole – Construction Lohmann Engineering

Your team is at full capacity – but the next project won't wait. Whether it's a peak in workload, a shortage of skilled engineers, or a project outside your core expertise: we step in where you need capacity. As an extension of your engineering team, we take over the design work according to your specifications – from 3D modelling to production-ready 2D drawings.

No onboarding effort, no permanent hire, no compromise on quality. You stay in control, we deliver the work.

Pressure Vessels & Tanks

Design and structural verification of pressure vessels, tanks, and process equipment in accordance with applicable codes and standards. From wall thickness calculations and stability analysis to complete manufacturing documentation — with the goal that your fabricator can start immediately. We deliver code-compliant, inspection-ready documentation including material certificates and pressure equipment files.

EN 13445 · AD 2000 · ASME BPVC Sec. VIII Div. 1 & 2 · PED 2014/68/EU

Piping Systems

Piping design, route planning, and support concepts for industrial plants. Isometrics, piping plans, and parts lists according to international piping codes — tailored to manufacturing, testing, and assembly. Stress analyses according to ASME or EN upon request.

EN 13480 · ASME B31.1 · ASME B31.3

Steel Structures & Weld Fabrications

Structural planning, weld seam design, and manufacturing-compliant construction for steel and mechanical engineering constructions. We provide standard-compliant manufacturing documents — from 3D design to welding drawings with weld seam symbols and inspection requirements.

EN 1090 · Eurocode 3 · EN ISO 9606 · EN ISO 15614


REFERENCES

Vacuum Drain Tank according to ASME SEC.VIII.DIV.1 – Pressure vessel construction and calculation Lohmann Engineering

Vacuum Drain Tank

​Key-Facts

Location:Libya
Code:ASME SEC.VIII.DIV.1
Medium:Light Distillate Oil
Design Temperature:85 °C
Design Pressure:1 barg
Total Volume:3.5 m³

3D model piping design cooling water circuit
Cooling Water System equipment arrangement & piping design
Key Facts

Code:EN 13480
Scope:3D Design – Piping and Supports, Isometric Drawings & BoM


Vacuum Drain Tank according to ASME SEC.VIII.DIV.1 for power plant in Iraq – Pressure vessel construction Lohmann Engineering

Vacuum Drain Tank

Key Facts

Location:Iraq
Code: ASME SEC.VIII.DIV.1
Medium:Demin Water + Corrosion Inhibitor
Design Temperature:400 °C
Design Pressure: full vacuum / 3.5 barg
Total Volume:5.6 m³

Construction drawing pipe support secondary steel construction – Power plant Lohmann Engineering
Primary and Secondary Pipe Supports
Key Facts

Location:Turkey
Code:GOST
Scope:Manufacturing Drawings, Technical Specifications
Quantity:375 t

Glycol Mixture Tank according to ASME SEC.VIII.DIV.1 for power plant in Uzbekistan – Vessel construction Lohmann Engineering

Glycol Mixture Tank

Key Facts

Location:Uzbekistan
Code:ASME SEC.VIII.DIV.1
Medium:Glycol Mixture
Design Temperature:100 °C
Design Pressure:0 barg
Total Volume:8.5 m³


3D model of a vertical pressure vessel with flange cover and nozzle – Vessel construction Lohmann Engineering

Corrosion Inhibitor Feeder

Key Facts

Location:Iraq
Code:ASME SEC.VIII.DIV.1
Medium:Corrosion Inhibitor
Design Temperature: 80 °C
Design Pressure:3.5 barg
Total Volume:20 l

Atm Drain Tank according to ASME SEC.VIII.DIV.1 for power plant in Iraq – pressure vessel design Lohmann Engineering

Atm Drain Tank

Key Facts

​​Location:Iraq
Code:ASME SEC.VIII.DIV.1
​​Medium:Demin Water + Corrosion Inhibitor
Design Temperature:400 °C
Design Pressure:3.5 barg
Total Volume:5.6 m³

CCW Expansion Tank according to ASME SEC.VIII.DIV.1 for power plant in Iraq – pressure vessel design Lohmann Engineering

CCW EXPANSION TANK

​Key-Facts

Location:Iraq
Code:ASME SEC.VIII.DIV.1
Medium:Demi Water + corrosion inhibitor
Design Temperature:85 °C
Design Pressure: ​​ 3.5 barg
Total Volume:5 m³

Atmospheric Flash Tank according to ASME SEC.VIII.DIV.1 for power plant in Senegal – pressure vessel design Lohmann Engineering

Atmospheric Flash Tank

Key Facts

Location:Senegal
Code:ASME SEC.VIII.DIV.1
Medium:Air
Design Temperature:350 °C
Design Pressure:3.5 barg
Total Volume:2.5 m³

Glycol Drain Pot according to ASME SEC.VIII.DIV.1 for power plant in Uzbekistan – vessel design Lohmann Engineering
Glycol Drain Pot
Key Facts

Location:Uzbekistan
Code:ASME SEC.VIII.DIV.1
Medium:Glycol Mixture
Design Temperature:100 °C
Design Pressure:2 barg
Total Volume:0.65 m³

Hydrogen Vessel according to ASME SEC.VIII.DIV.1 for power plant in Libya – vessel design Lohmann Engineering

Hydrogen Storage Tank

​Key-Facts

Location:Libya
Code:ASME BPVC SEC.VIII.DIV.1
Medium:Hydrogen
Design Temperature:80 °C
Design Pressure:41.5 barg
Total Volume:100 m³

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