Watertube High-Pressure Steam Boilers

Unilux Evolv-S Series

A wide range of available sizes and uniform construction throughout make the Evolv-S Series boiler a plant-engineer favorite. Use our high-pressure steam boilers for central heating, process, autoclave, injection process, main-plant distribution systems or anywhere clean, dry steam is required at pressures above 15 PSI. Standard construction is ASME Section I at 150 PSI (pressures to 900 PSI are available). Operating efficiencies are 81% without external devices, and up to 84% with our engineered economizer packages.

  • Innovative pressure vessel and tube configuration allows boiler to cold start without concern for thermal expansion and contraction
  • Steam-generating time of 15 minutes from a cold start
  • Delivers unsurpassed steam quality up to 99.9%
  • Flexible burner selection
  • Industrial Low NOx designs to 9PPM
  • Available as field-erect (FE) units for any application
  • Ample blowdown and cleanouts ports for easy periodic boiler inspections
  • Fireside access without cutting or welding
  • Simple tube changes without welding or rolling (ferrule-fit models only)

ModelsQuoteEvolv-S Brochure