Retrofit Emission Control Device For DG Set

CPCB & NGT approved retrofitted emission control device for DG Set, We Eo Energy is the trusted manufacturer & supplier of RECD for DG Set in India. This well-tested retrofitted emission control device reduces harmful particles & gases of diesel engines that badly affect our environment. The offering range of generator pollution control kits reduces diesel generator particulate matter by up to 95%. We work with a team of highly knowledgeable & well-skilled technicians who follow the standard norms & parameters set by NGT & CPCB while manufacturing emission control equipment for diesel generators.
We understand the value of fresh & clean air in modern industrial days, to implement the continuity of reducing particulate matter in environments, EO Energy is offering a small contribution by designing DG Set RECD at an affordable price. DG Set emission control device installation is available in various kVA ranges of Genset such as 1 kVA DG Set to RECD for 2000 kVA generator.










Maintenance Free



To control diesel generator pollution, NGT & CPCB set a few parameters to run Genset in various metropolitan cities. As per the research data of the National Green Tribunal, the running of diesel generators is one of the major causes of air pollution. However, the popularity of diesel engine generators due to their low fuel consumption feature makes them the most demanding power backup resource. But the disadvantage appears when diesel burns, it emits harmful emission pollutants & toxic gases that are more harmful to the human body as well as major causes of damage to the lungs, respiratory problems & cancer.
Keeping all these things in mind National Green Tribunal (NGT) issued a strict guideline (A copy of which we have attached below) for the use of retrofitted emission control equipment. At EO Energy, we provide custom designs retrofit emission control systems to control hazardous gaseous pollutants emitted through diesel generators, following all the guidelines issued by NGT, CPCB & EPCA. We are the largest authorized distributor & manufacturer of RECD for DG sets.

What is a Retro-fit Emission Control Devices (RECD)?

A retrofitted emission control device designed to reduce harmful emissions & pollutant particles from the diesel generator. This DG Set pollution control device is built on filter-less technology & by using electrostatic precipitation. This technique makes DG Set RECD more effective in enhancing air quality & capturing carbon matter with an efficiency of more than 90%.
The retrofit device technique adds the extra advantage to control the emission of hydrocarbons and carbon monoxide from diesel generators. The very common retrofitted technology for DG Set is the installation of retrofit devices in the diesel engine exhaust system. The retrofitted equipment installed in the exhaust system controls the emission during the diesel generator operation. These RECDs are built and tested to follow the standards and norms set by NGT, Central Pollution Control Board, Ministry of Environment, Forest, and Climate Change (MoEF & CC).

Emission control device manufacturer & supplier in India- Choose the right emission control device for DG Set

Moreover, the emission control system of Eo Energy aligns perfectly with the guidelines set by the Central Pollution Control Board & National Green Tribunal. These pollution control devices can boost the reduction efficiency by more than 90% for Hydrocarbons (HC), Particulate Matter (PM), and carbon Monoxide (CO). This accomplishment has been validated & approved by Pollution Control Board-accredited labs to ensure compliance with stringent emission standards.

Here check the list of pollution control equipment for Genset based on its size & power output.

Availability of RECD kit for DG Set based on the Genset type & size offers the best buying opportunity to our precious clients. With years of technical experience & a team of experts, we always try to achieve our level best. All our products follow the industrial standard norms to make your industrial generator more efficient & reliable. A few major beneficial features of our service. To identify the best product that matches your needs listed below,

  • Product manufacturing is based on the needs of the application.
  • Low buying cost of the retrofit emission control device.
  • Testing in all parameters before installation.
  • Availability for both new and existing Genset.
  • High-grade materials & super relative technology.

How a retrofit device attached to diesel generators can reduce air pollution?

In our daily lives, diesel generators play an important role & its widely used as a power backup unit. Also, diesel Genset units are major resources to run industrial & commercial applications during planned or unplanned power failure. There are several benefits of having a diesel engine DG Set such as efficiency, cost-effectiveness, high torque & many more. But along with it, they emit harmful gases such as CO2, carbon monoxide, and others which are highly dangerous for our ecosystem.
To control harmful emissions of diesel Gensets, Eoenergy introduced a retrofitted emission control device for DG Set that helps to control the pollution emitted from the diesel engine.

Retrofit emission control technology

The retrofit emission control device is a filtration system that filters specific particles. The manufacturing design of this device is a stainless steel box (can) that is mounted with the generator exhaust system. In some cases or with the particular device, they are attached to the original muffler or silencer.
This diesel generator retrofit device is the best way for the proper treatment of pollution control. The device can be easy to install in existing or new diesel generators to control the PM, carbon monoxide, nitrogen oxide & other pollutants particles.
The below reference table will help you to get a better understanding of the various norms of Genset emission.

Emission Norms for Genset Engines
Emission Norms Category
Date of
Smoke Test Cycle Test Equipment
CO HC Nox PM m-1
CPCB - l 0-19 Implemented from 2003 - 2005 depending upon Power band 3.5 1.3 9.2 0.3 0.7 ISO 8178 D2-5 Mode Cycle Steady State Dynamometer, Partial Flow SPC(PM), Raw Emission Measurement Systems.
> 19-36
37 - 75
> 75 -129
130 - 560
561 - 800
CPCB- ll 0-19 Jul. 2014 3.5 HC+Nox=7.5 0.3 0.7
> 19-36 HC+Nox=4.7 0.3
37 - 75
> 75 -129 HC+Nox=4.0 0.2
130 - 560
561 - 800

Way to Control Diesel Genset Pollution

Retrofit technique

The retrofit technique in diesel generators is the addition of a pollution control device to control the emission rate from the engine exhaust. This trusted technique to remove emissions is very effective & able to reduce more than 90% of pollutant particles in specific cases. The device is used for diesel retrofit along with nitrogen oxide catalysts, diesel oxidation catalysts, exhaust gas recirculation, diesel particulate filters & others.


Repowering the DG Set is a process where the owner will replace the existing engine with the new one. This technique is more useful when you need to use your device for longer purposes. Repowering any old device gives the opportunity to install a new engine with the latest emission control features. This repower feature of retrofitted emission control devices makes them more useful during operations.


The routine maintenance & replacement of old or faulty parts are the best method to get high efficiency from diesel engine devices. Also, the major maintenance provides an opportunity to rebuild the engine with a more modern technique. Modern engines emit less emission as compared to the old ones or we can say the rebuilt cleaner parts gives immediate emission reduction benefits.


There are various fuel types used in the generator. Some of them need a few modifications in the engine or some complete replacement. A few of the alternative fuels such as diesel, biodiesel, ethanol, gas, or propane are used as a supplementary addition to reducing emissions.


Retiring the higher polluting diesel engine device is always the best method to control the pollution level in our ecosystem. So whenever the existing products didn’t match the standard emission level replacing them with the new one is the best technique.

Genset Emission Control Device List

Product Name Emission control device
Material Stainless steel
Power Based on the unit
Frequency 50 Hz
Voltage 430 V
Used in Industrial diesel Genset

1) Mild Steel emission control device

Suitable design with high efficiency the mild steel emission control device presents rugged & robust features for long-duration use. It is also able to tackle various types of emissions based on their level. Here is more specification detail.

2) A three-phase fugitive emission control device

This emission control device is used to recycle the pollutants particles which emit from the diesel engine. The improved emission filter method is also helpful to protect the environmental ecosystem. Here get more inquiry with product detail,

ApplicationIndustrial lead recycling plants
Phase3 Phase
Used inHigher than 125 kVA DG Set
Capacity1200 CMH
Voltage410 V
FinishingPaint coated

Most Popular Emission Control Devices for Diesel Engine​

Here is the list of the most popular & best emission control device for diesel engines.

Catalytic converter

The catalytic converter is an emission control equipment that converts toxic gases into a less harmful compound. It uses a chamber known as a catalyst. A catalytic converter is placed in the exhaust system next to the engine and looks like a large metal box. It consists of pellets coated with a catalyst and an insulated chamber containing a honeycomb structure.  The converter contains precious metals like platinum, palladium, rhodium.

PCV valve

PCV stands for positive crankcase ventilation. PCV is a one-way valve attached to the crankcase. The crankcase holds the motor oil and is located at the bottom of the engine. When the engine fuel burns, it produces gases. The device uses the engine vacuum to pull air through the crankcase and routes it back into the intake manifold. It burns the gases and fuel safely without harming the environment.

EGR valve

EGR or exhaust gas recirculation valve is used to reduce the formation of nitrogen oxide (NOx) emission. When the combustion chamber temperature exceeds plus 1370℃, it creates harmful gases like nitrogen and passes through the exhaust system to the atmosphere. Exhaust gas recirculation system helps to control the combustion temperature and reduces the formation of NOx and releases more efficient exhaust.

Evaporative emission control

The evaporative emission control (EVAP) system locks the fuel system of the vehicle to prevent fuel vapors from the fuel tank from evaporating in the atmosphere. This is important to prevent the fuel vapor from getting vaporized because it contains various hydrocarbons and forms smog when it reacts to the sunlight. It means if the fuel system opens it pollutes the environment for 24 hours. It is essential to have an EVAP system on our vehicles.

Air injection

An air injection system is an emission control device that forces fresh air into the exhaust ports of the engine to reduce carbon monoxide (CO) and hydrocarbons (HC) emissions. The exhaust gases can contain partially and unburned fuel. Air injection injects oxygen that causes this fuel to continue to burn and reduce the exhaustion of harmful gases like carbon monoxide and hydrocarbons.

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