Services
Mechanical strength calculations, pressure equipment design, technical consulting, and 7-step delivery workflow.
Explore AllMechanical, strength, and FEA simulations
ASME VIII Div.1, EN 13445, and TEMA compliance
Standards evaluation and technical reporting
End-to-end flow from inquiry to technical support
Pressure vessels, reactors, tanks, piping, and columns
ASME & EN compliant vessel and nozzle calculations
Thermal and mechanical optimized exchanger designs
Advanced structural, stress, and thermal simulations
Pressure, temperature, and corrosion allowance
Industries
Cross-disciplinary engineering solutions tailored to the dynamics and process conditions of diverse sectors.
Explore AllCustom machine design and structural stress verification
Process tanks, dye kettles, and heat recovery exchangers
Thermal, biomass, geothermal, and cogeneration plants
API 650 / API 620 storage tanks and refinery systems
Heavy industrial furnaces, cooling towers, and steel structures
Waste heat recovery and green energy integration
3D CAD modeling and innovative prototype development
End-to-end plant layout, piping flexibility, and layout design
Standards
Engineering standards guide fully compliant with ASME, EN, API, and TEMA international codes.
Explore AllPressure vessel mechanical sizing and FEA criteria
CE & PED 2014/68/EU compliant calculations
Welded storage tanks for petroleum and chemicals
Shell & tube heat exchanger thermal & mechanical sizing
About Us
10+ years of engineering experience, 3P philosophy, vision, mission, corporate values, and commitments.
Explore AllExpert engineering team founded on shared excellence
Precision, Performance, Professionalism + EN
Engineering beyond standards mindset
Reliability, technical excellence, and continuous growth
Our differentiators and engineering commitments
Textile Industry (Dye Tanks)
Dye Tanks, Chemical Preparation & Waste Heat Recovery Systems
The textile dyeing and chemical finishing industry requires equipment resistant to aggressive chemicals, high temperatures, and frequent thermal cycling. POLIEN Engineering designs corrosion-resistant stainless steel HT dyeing vessels, chemical preparation tanks, and dyehouse waste heat recovery systems.

Fully Compliant with International Standards
Applicable Design Codes & Standards
Key Equipment & Applications
- Fabric & Yarn High-Temperature Dyeing Machines
- Chemical Dosing and Automation Storage Tanks
- Dyehouse Effluent Waste Heat Recovery Units
- Condensate and Hot Water Recovery Reservoirs
Polien / Core Disciplines
Engineering & Analysis Scope
HT (High Temperature) Dyeing Vessel Sizing
Mechanical design of horizontal and vertical fabric/yarn dyeing vessels operating at 140°C and 5+ bar according to EN 13445.
Chemical Preparation, Dosing & Storage Tanks
Agitated, jacketed, and dimpled reaction vessels built from AISI 316L / 904L stainless steels for caustic and acid handling.
Dyehouse Waste Hot Water Heat Recovery Exchangers
Clog-resistant TEMA Class C shell & tube heat exchangers recovering thermal energy from effluent wastewater to preheat fresh process water.
PED 2014/68/EU Conformity & Notified Body Approval
Risk analysis, Essential Safety Requirements (ESR) matrix, and technical dossier preparation for CE-marked textile vessels.
Polien / Deliverables