Heavy Wall Construction


Development of Half Pipe Reactors


Thermal & Stress Analysis


Welding Technology

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Roben Manufacturing designs Reactors in accordance with ASME Sec. VIII Div. I, or other International regulations, with heating/cooling and agitation systems. Our units are designed in accordance with our customers specific operational requirements, in two key areas:

  • materials of construction
  • thermal/mechanical design characteristics

Understanding the cyclic operation, static and dynamic forces acting on the Reactor vessel and structures will avoid costly, unplanned plant shutdowns and impact on plant output, health safety and environmental issues over time.

Much like heat exchangers, Agitated Reactors are subject to vibration and resonance characteristics from agitation operation, internals design, vessel filling and emptying. Therefore, computer aided designs for hydraulic loads and pressure distributions and forces based on flow velocities, can be calculated by CFD and used for FEA inputs for process improvement, increased reliability and operational safety.

Mechanical design
  • ASME VIII Div. I - PED – China Certification
  • Design software: HTRI /Compress / Aspen Tec
  • Finite Element Analysis (FEA)
  • Seismic and wind loads calculations
Construction material
  • Austenitic and Duplex Stainless Steels
  • Ferritic Stainless Steels
  • Nickel Alloys and Super Alloys
  • Titanium
  • Clad combinations
  • Design range from full vacuum up to 50 bar(g)
  • Design temperature from - 50º C up to + 400º C
  • Design for cyclic operation capability
  • Heating /Cooling by double jacket baffling, half pipe coils of dimple jacket , Internal coils and baffle configurations
  • Agitators available with axial flow, radial or combined double flow designs
  • Installed powers up to 0.5 KW up to 300 KW
  • Fatigue Stress calculation, for cycles of pressure and temperature
  • Proprietary 6” half pipe with full penetration welding
  • Agitation systems with mechanical seals, single or double and process simulation
  • Polishing from Ra ≤ 1.2 µm up to Ra ≤ 0.2 µm
  • CIP-SIP systems, Riboflavin test capability
  • Thermal Insulation capability