Emission System Components

  NOxRedux™, Active SCR System
  EcoLET, Low Emission Technology
  EcoZET, Zero Emission Technology
  UREA / Ammonia Metering / Dosing Injectors & Pumps
  Diesel Particulate Reduction, DPF Regeneration Systems
  Fuel Borne Catalyst / Additive Dosing & Control
  Manufacturing Parts

ServoTech Industries offer products and components for emissions control and abetment systems enabling various industries and applications meeting their regulatory EPA / CARB emissions standards.

ServoTech EcoLET, EcoZET, and NOx reduction SCR products, NOxRedux™-urea and NOxRedux™-NH3 are the most effective systems for stack and emissions reduction for applications in chemical plants, power plants, gen-sets, locomotive, marine engines, food and beverage industries, ovens, coffee roasters, and boilers fueled with liquid/ gaseous/bio-fuel.

ServoTech Emission System Components

NOxRedux

NOxRedux

NOxRedux

NOxRedux

ServoTech NOxRedux™ Active SCR System

ServoTech Active SCR Systems (NOxRedux™) reduces NOx levels from mobile and stationary exhaust by 98%. NOxRedux™-urea and NOxRedux™-NH3 are the most effective systems for stack and exhaust NOx reduction for applications in chemical plants, power plants, gen-sets, locomotive, marine engines, food and beverage industries, ovens and boilers fueled with liquid/gaseous/bio-fuel.
ServoTech NOxRedux™ Active SCR System Reactor provides simultaneous reduction of CO, HC and NOx with a minimum NH3 slip (well within the required level).
The ServoTech NOxRedux™ Active SCR system, reduces pulsation and controls exhaust gas mixing to assure even distribution of gases across the catalyst interface.

NOxRedux

NOxRedux

NOxRedux

NOxRedux

NOxRedux

NOxRedux

NOxRedux

NOxRedux

NOxRedux™ Package

SCR Systems Include:
  SCR Catalyst components and housing (SCR and optional Ammonia Slip Catalyst, ASC)
  Optional pre SCR Oxidation Catalyst
  Reductant dosing unit and control panel
  Sensors pre/post (NOx, Temperature, Back Pressure)
  Wiring Harness
  OBD System (warning lights, Buzzers)
  Optional Reductant Tank (UREA, Aqueous Ammonia, Anhydrous Ammonia)
  Training at ServoTech site (Field Installation is offered)
  Operating Manuals
  Optional set up / startup of the system
  Optional remote emissions level monitoring

NOxRedux

NOxRedux

NOxRedux

NOxRedux

NOxRedux

Catalyst Component:

The catalyst component includes a high performance low or high temperature SCR catalyst and an optional ammonia slip catalyst. It provides maximum NOx conversion efficiency (up to 98%, via SCR Catalyst). Catalyst size is optimized based on engine size and exhaust flow, emissions level, and condition of engine operation and catalyst performance data. NOxRedux™ controls urea/ammonia dosing rate precisely, therefore minimizing the catalyst size.

NOxRedux

NOxRedux

NOxRedux

NOxRedux

Reductant Dosing Unit:
Specifications A B C
Pump Type Solenoid Magnetic, Gear Magnetic, Gear
Pumping Medium AdBlue AdBlue or Aqueous Ammonia AdBlue or Aqueous Ammonia
Max Differential Pressure 10 Bar ~5.0 Bar ~5.0 Bar
Max Flow 6 L/hr 30 L/hr Up to 400 L/hr
Temperature Range  -50 ~ 350 (°F)  -50 ~ 350 (°F) -50 ~ 350 (°F)
Accuracy ± 5% ± 3% ± 3%
Power DC 12 or 24 V DC 24 V AC 120 V
NOxRedux

Urea Injector / Nozzle

ServoTech offers air assisted nozzles for urea delivery. The air assisted nozzle mounts after the pre-NOx sensor and mixes the metered urea with air for a fine atomization. Depending on the space availability from the turbo outlet to the SCR catalyst, the nozzle can accommodate the packaging design for optimum operation.

NOxRedux

NOxRedux

NOxRedux

NOxRedux

NOxRedux

NOxRedux™ Control Unit

NOxRedux™ is a universal controller which designed for anhydrous ammonia, aqueous ammonia, URAE and fuels. The unit can control dosing rate by both open-loop and close-loop strategies (need NOx sensor or NH3 sensor feed back for closed loop control). A look up table will help you to calibrate the initial dosing rate.

NOxRedux

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