Looking to buy RECD for generators online? Online procurement can make it easier to compare manufacturers, technical specifications, prices and service options—but an RECD should not be purchased like a standard industrial accessory. The correct product needs to match the specific DG-set application, and buyers should verify relevant documentation before placing an order.

CPCB's published RECD procedure establishes requirements for type approval and testing of retrofit emission-control devices for in-use diesel generator applications. It states that an RECD for an in-use genset application should not be sold, imported, installed or used without a valid Type Approval Certificate under the applicable procedure. For 2026 procurement, the safest approach is to use online research for supplier discovery and comparison, followed by technical and regulatory verification before finalizing the purchase.

Why Buying an RECD Online Requires Care

Online purchasing offers convenience, but an attractive product page does not necessarily tell you whether the equipment is appropriate for your generator.

A proper buying decision involves several questions:

• Which DG set will use the RECD?

• What is the engine manufacturer and model?

• What is the engine's gross mechanical power?

• Which RECD model is being offered?

• What application does the product cover?

• What documentation is available?

• Who will install the equipment?

• What warranty and service support are provided?

These questions should be answered before focusing heavily on price.

1. Start With Your DG Set Information

The first step is to collect accurate information about your generator.

Keep the following details ready:

• DG-set manufacturer

• Engine manufacturer

• Engine model

• Engine serial number

• Gross mechanical power

• DG rating in kVA

• Exhaust-pipe diameter

• Existing silencer arrangement

• Installation location

• Photographs of the engine nameplate

• Photographs of the exhaust system

This information helps a supplier determine whether the proposed RECD is appropriate for the application.

CPCB's broader generator-set documentation distinguishes diesel generator applications by engine power, including diesel engines up to 800 kW and applications above that range.

2. Don't Search Only by Price

One of the biggest mistakes in online procurement is starting with:

“What is the cheapest RECD?”

Instead, start with:

“Which RECD is technically suitable for my DG set?”

After identifying suitable products, compare their commercial terms.

A low-priced product may not include:

• Installation

• Exhaust modification

• Commissioning

• Transportation

• Warranty support

• Technical service

Therefore, compare the complete project cost, not just the product price displayed online.

3. Identify the Exact Product Model

Avoid purchasing from a listing that only says:

“RECD for DG Set”

Ask for the exact:

• Manufacturer

• Product name

• RECD type

• Model number

• Applicable engine range

• Technical specifications

CPCB's RECD procedure specifically addresses type approval of an RECD type or RECD family and identifies the engine type or engine family associated with approval.

This makes exact product identification an important part of online purchasing.

4. Verify the Manufacturer

Before making an online payment, establish who is actually supplying the product.

The seller could be:

• Original manufacturer

• Authorized distributor

• Dealer

• Reseller

• Installation contractor

Ask the seller directly:

Are you the manufacturer or an authorized supplier?

Then verify the company's business details and request documentation for the exact product being offered.

For buyers considering a manufacturer such as Aceget, it is still good practice to provide the complete DG specifications so the supplier can evaluate the requirement rather than relying on a generic product description.

5. Verify Type Approval Information

This is one of the most important steps.

CPCB's published RECD procedure states that a valid Type Approval Certificate is required for an RECD intended for an in-use genset application in India. The procedure also describes type-approval testing and the issuance of a Type Approval Certificate when the relevant requirements are met.

Therefore, don't rely solely on statements such as:

“CPCB approved.”

Ask the supplier for relevant supporting documentation and confirm that the documentation relates to the exact RECD model/type and applicable engine or engine family.

This is much stronger than relying on a marketing claim.

6. Check Whether the Product Fits Your Engine

An RECD should not automatically be treated as a universal component.

Your supplier should know:

• Engine model

• Engine power

• Exhaust configuration

• Applicable product range

• Installation requirements

CPCB's RECD framework includes engine/application information as part of the approval process.

Therefore, send your DG details before asking for the final quotation.

7. Request a Technical Datasheet

Before ordering online, ask for the product datasheet.

Look for:

Product information

• Model number

• Dimensions

• Weight

• Product type

Application information

• Engine range

• Power range

• Applicable DG configurations

Installation information

• Connection requirements

• Exhaust arrangement

• Mounting requirements

• Maintenance requirements

The datasheet should correspond to the model mentioned in your quotation.

Important check:

Quotation model = Datasheet model = Supporting documentation model

If these do not match, ask for clarification.

8. Ask for Installation Details

Buying the RECD is only one part of the project.

The existing exhaust system may require technical evaluation before installation.

Ask whether the supplier provides:

• Site inspection

• Exhaust measurement

• Installation

• Fabrication

• Mounting

• Commissioning

Also clarify whether these services are included in the quoted price or charged separately.

9. Check Exhaust Compatibility

Before ordering, provide photographs and measurements of the existing exhaust system.

Useful information includes:

• Pipe diameter

• Flange dimensions

• Existing silencer

• Pipe bends

• Available space

• Mounting arrangement

This helps the supplier identify potential installation requirements before delivery.

CPCB's RECD procedure also addresses installation requirements as part of the approval framework.

11. Understand the RECD Price for DG Set

The RECD price for DG set can vary depending on several factors, including:

• DG-set capacity

• Engine model

• RECD model

• Product configuration

• Installation requirements

• Exhaust modifications

• Quantity

• Transportation

• Warranty

• Service scope

Therefore, there is no single price that can accurately represent every DG application.

When requesting a quotation, provide the supplier with complete DG specifications.

12. Ask for a Complete Cost Breakdown

An online quotation should ideally separate the major costs.

For example:

RECD equipment: ₹_____
Transportation: ₹_____
Installation: ₹_____
Fabrication: ₹_____
Commissioning: ₹_____
Taxes: ₹_____

This helps you understand whether a quoted price is genuinely competitive.

A supplier offering a slightly higher equipment price may actually provide better value if installation and commissioning are already included.

13. Check Delivery Time

Don't assume that an online product is immediately available.

Ask:

• Is the model currently available?

• Is it made to order?

• What is the dispatch timeline?

• How long will transportation take?

• When can installation begin?

For facilities with regulatory or project deadlines, delivery planning can be important.

Get the estimated delivery schedule in writing.

14. Understand Warranty Before Payment

Warranty terms should be checked before ordering.

Ask:

Warranty duration

How long is the warranty?

Warranty start date

Does it begin from:

• Delivery?

• Installation?

• Commissioning?

Coverage

Which components are covered?

Service

Are site visits included?

Exclusions

Which situations are excluded?

Do not rely on a general statement such as “one-year warranty.” Request the complete terms.

15. Check After-Sales Support

A product can be purchased online, but technical support may still be required locally.

Ask:

• Who handles technical complaints?

• Is telephone support available?

• Are service engineers available?

• Are site visits provided?

• Are spare parts available?

• How are warranty claims processed?

For industrial DG applications, after-sales support can be just as important as the initial purchase.

16. Ask About Spare Parts

Before purchasing, find out whether replacement components are available.

Ask the supplier:

• Which components require periodic replacement?

• Are consumables available?

• What is the expected lead time?

• Are parts stocked in India?

• Can emergency replacements be supplied?

A product that is easy to purchase but difficult to maintain may create unnecessary operational problems later.

17. Be Careful With Marketplace Listings

Online marketplaces and directories can help you discover suppliers, but listings should not be treated as technical certification.

A listing might contain:

“CPCB RECD – Best Price – Universal DG Compatibility”

That wording alone is not sufficient.

Instead, request:

• Exact model

• Manufacturer details

• Application information

• Supporting documentation

• Installation scope

• Warranty

Use online platforms for research, but conduct technical verification before purchase.

18. Avoid Paying Before Technical Confirmation

For a specialized product, avoid rushing into payment simply because:

• The supplier offers a limited-time discount

• The product is advertised as “ready stock”

• Another buyer recommended the company

• The online price looks attractive

First confirm that the proposed product is appropriate for your DG.

For larger orders, consider requesting a formal technical proposal before issuing the purchase order.

19. Ask for a Formal Quotation

A professional quotation should identify:

• Buyer name

• Supplier details

• Product name

• Exact model

• Quantity

• Unit price

• Taxes

• Delivery

• Installation

• Warranty

• Payment terms

• Validity period

Avoid purchasing expensive technical equipment from a listing that provides little information about what you are actually receiving.

20. Consider a Site Survey

A site survey can be particularly useful if:

• The exhaust space is restricted

• The DG is installed indoors

• Exhaust modifications are required

• Multiple DG sets are involved

• The installation is technically complicated

The supplier can assess the installation conditions before finalizing the equipment and fabrication scope.

21. Keep All Documents

After ordering online, maintain a digital and physical record.

Keep:

• Quotation

• Purchase order

• Invoice

• Product datasheet

• Type Approval documentation, where applicable

• Installation report

• Commissioning report

• Warranty certificate

• Service records

This documentation can be useful for future maintenance, warranty claims and compliance verification.

22. Check Current CPCB Information

CPCB's official material should be the primary reference when checking regulatory information.

The published RECD procedure contains specific provisions covering type approval, testing and installation requirements.

CPCB also publishes broader generator-set environmental regulations covering diesel generator applications and engine power categories.

Because requirements and official publications can change, buyers should verify the latest applicable information before purchasing an RECD in 2026.

Where applicable, also check requirements from the relevant State Pollution Control Board, Pollution Control Committee or other competent authority.

23. Online Buying Checklist

Before clicking “Order” or making an advance payment, verify:

Product

• DG engine details provided

• Exact RECD model identified

• Application range confirmed

• Datasheet received

Compliance Documentation

• Relevant Type Approval information checked

• Supporting documentation received

• Manufacturer identity verified

• Current requirements reviewed

Installation

• Exhaust configuration checked

• Site survey considered

• Fabrication scope confirmed

• Installation included or separately priced

• Commissioning clarified

Commercial

• Product price confirmed

• Taxes confirmed

• Transportation confirmed

• Delivery date confirmed

• Payment terms documented

Support

• Warranty confirmed

• Spare parts checked

• Service coverage confirmed

• Complaint procedure understood

24. Questions to Send Before Ordering

You can send the following questions to every shortlisted supplier:

1. Which RECD model is suitable for my DG?

2. What engine/application range does the model cover?

3. What documentation supports the product?

4. Can you provide relevant Type Approval information?

5. Is installation available?

6. Is a site survey required?

7. What is included in the quoted price?

8. What is the delivery timeline?

9. What warranty is provided?

10. Are spare parts available?

11. Where is technical support available?

12. What documents will I receive after installation?

Comparing written answers makes supplier selection much easier.

25. When Online Buying Is a Good Option

Online procurement can work well when:

• DG specifications are already available

• The supplier is established

• The exact model is clearly identified

• Documentation can be verified

• Installation support is available

• Warranty terms are clear

• Delivery arrangements are defined

For straightforward procurement, online communication can significantly reduce the time required to obtain quotations.

26. When You Should Seek More Technical Assistance

Consider requesting additional technical support when:

• The DG is a high-value installation

• Several generators are involved

• Exhaust modifications are extensive

• The proposed RECD is unfamiliar

• Documentation is unclear

• Multiple products are being compared

• The site has unusual installation conditions

A technical evaluation before purchase can be considerably less expensive than correcting an unsuitable installation later.

Final Thoughts

Buying an RECD online can be convenient, but the correct approach is research first, verify second, purchase third. Start by identifying your DG-set and engine specifications. Then compare suppliers based on the exact RECD model, technical suitability, supporting documentation, installation capability, warranty, delivery and after-sales service. A reliable supplier should be willing to understand your DG specifications, identify the appropriate product, provide relevant documentation and explain the complete installation and support process. Before making a purchase in 2026, verify the latest official CPCB requirements and any applicable local regulatory requirements for your specific generator and installation.