Hydro-Thermal NOH Non-Obstructing Heaters

Hydro-Thermal NOH Non-Obstructing Heaters – Unrestricted Flow

Hydro-Thermal NOH Non-Obstructing Heaters allow unrestricted flow, prevents pressure drop and heats slurries without plugging or fouling. The NOH rugged design and materials of construction allow it to handle abrasive materials minimizing wear on internal parts.


  • Thick, Viscous Slurries – Pulp Bleaching, Cellulosic Ethanol, Meat Slurry
  • Products with Particulates – Diced Vegetables and Blanching
  • Anything Abrasive or Corrosive – Mining and Metals
  • Stringy Products – Municipal and Industrial Wastewater
  • Inline Water Heating with a Large Temperature Rise


  • Low Pressure Drop
  • Unrestricted Flow
  • Quiet, Noise Minimizing Design
  • Rugged, Able to Handle Abrasive Materials (such as Sand or Grit) or Large Particulate  – Fibrous Materials
  • No Special Tools Needed for Maintenance
  • Reduction in Steam Leakage
  • Large Range of Operation
  • Trim Heating Control for High Turndown

Volume capability:  30 up to 3,035 gpm [6.8 up to 689 m³/hr]

Model Numbers:  NOH2, NOH4

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Hydro-Thermal NOH Non-Obstructing Heaters

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