Retrofit Emission Control System & Devices

Buy a retrofit emission control device & reduce DG Set emission up to 95%. Book your order now to buy retrofit emission control devices for DG Set. Our firm is the authorized manufacturer of emission control systems for diesel generators by following standard norms. We understand the problem of air pollution & how it become a major challenge for our coming generation. We also need to control it for a better & sustainable future.







To control air pollution emission levels NGT, CPCB & other pollution control boards set a few parameters for diesel engines. As per National Green Tribunal data diesel engine operation is one major cause of air pollution. Diesel engines typically use 20%-25% less fuel with cheaper running costs. This makes them more efficient but it has several disadvantages too. When burnt, they emit various harmful emissions, pollutants & toxic gases. Various studies show that diesel engine exhaust is more harmful to the human body that causes damage to lung & respiratory problems and also cancer.

Keeping in mind all these things, National Green Tribunal (NGT) issued strict guidelines (a copy of which we have attached below) for the use of retrofitted emission control equipment or devices (RECD). At EO Energy, we provide a custom-designed RetroFit Emission Control System to control hazardous gaseous pollutants released by diesel generators, following all the guidelines issued by NGT, CPCB, and EPCA. Our firm is the largest manufacturer & supplier of emission control devices for DG sets in India.

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

A retrofit emission control device is installed to reduce the harmful emission & pollutants exhaust from the diesel generator. In a country where frequent power cut is a normal thing, diesel Genset is widely used for continuous power backup. When diesel burns, it emits unburned hydrocarbons (HC), carbon monoxide (CO), nitrogen oxides (NOx), or particulate matter (PM) into the air. As per WHO, the safety limit of this particulate matter is 23 micrograms per cubic meter. Diesel generators cause the density to increase up to 300 micrograms per cubic meter.

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 standard 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 system for DG Set

With the best manufacturing experience, EO Energy is the authorized dealer & manufacturer of emission control devices for DG Set. Our experienced experts continuously work to reduce Genset emission levels & make our environment healthier with better air quality. EO Energy count as a top-ranked retrofit emission control supplier in India. We are a firm with a team of a highly experienced technician who manufactures the best in quality retro-fit device for DG Set. Our all products follow the standard norms of CPCB & NGT.

Availability of RECD equipment based on the Genset type & size offers the best buying opportunity to our precious clients. With years of 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 which matches your need, make a visit to our sales & manufacturing unit

  • 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?

Diesel generators are widely used power backup units & the major resource to run industrial & commercial operations during planned or unplanned power failure. There are a number of benefits of having a diesel engine generator such as efficiency, cost-effectiveness, high torque, & many others. But along with it, they emit harmful gases such as CO2, carbon mono oxide & others which are highly dangerous for our ecosystem.

To control it many companies have introduced retrofitted emission control equipment for DG Set that helps to control the pollution from the diesel engine.

Retrofit emission control technology

The retrofit emission control device is basically a filtration system that filters specific particles. The manufacturing design of this device is a stainless steel box (can) that mounted with the generator exhaust system. In some cases or with the particular device, they are attached with 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

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 pollutants particles in specific cases. The device is used for diesel retrofit along with nitrogen oxide catalysts, diesel oxidation catalysts, exhaust gas recirculation, diesel particulate filter & 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.

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 emission.

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

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.

Product Name Emission control device
Material Stainless steel
Power Based on the unit
Frequency 50 Hz
Voltage 430 V
Used in Industrial diesel Genset
Application Industrial lead recycling plants
Phase 3 Phase
Used in Higher than 125 kVA DG Set
Capacity 1200 CMH
Voltage 410 V
Finishing Paint coated

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,

Most Popular Emission Control Devices for Diesel Engine​

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

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 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 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.

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.

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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