Escape Ordinary. Embrace Extraordinary.

A One-Stop Solution for Clean Gas Infrastructure

We specialize in high-pressure cylinder testing, cascade management, and turnkey projects, always prioritizing safety and reliability.

PESO Compliant Operations

India's highest safety standard achieved with zero operational failures.

99%

Welcome to Green Gas

Your Trusted Partner in Clean Energy Solutions

Green Gas Group is a leading provider of end-to-end solutions for the CNG and LNG industry. With a strong presence in South India’s key hubs, we deliver unparalleled expertise.

We are the trusted partner for India's top CGD companies, delivering quality and safety at every step of the infrastructure lifecycle.

PESO Compliant Facilities
ISO 9001:2015 Certified
End-to-End Support
Expert Engineering Team

Discover Our Services

5+ Years of
Excellence

Cylinders Tested

Expert testing daily.

CGD Companies

Projects Executed efficiently.

Professional Team

Decades of Expertise.

Locations

Satisfied Energy Partners.

Our Core Services

We deliver complete end-to-end solutions for the CNG and LNG industry.

Periodic Cylinder Re-testing

Ensuring safety, reliability, and full PESO compliance for all CNG and industrial gas cylinders.

CNG Cascade Re-testing & Repair

Certified re-testing, maintenance, and refurbishment for stationary and mobile cascades.

Maintenance Services

Specialized maintenance for CNG cascade systems and individual automobile cylinders. Ensuring safety and proper performance.

Cascade Handling & Transportation

End-to-end logistics and safety management, backed by our dedicated fleet.

Infrastructure & Safety

Our Commitment to "Safety First"

Our motto is "Safety First." All our plants are ISO 9001-certified and adhere to strict Standard Operating Procedures (SOPs), verified by PESO and leading Third-Party Inspectors (TPIs).

All plants are PESO-licensed and ISO-certified.

Aligned with the Government’s mission to expand CNG.

Operations managed by qualified industry engineers.

ISO 9001:2015

Quality Management System

PESO Licensed

Petroleum & Explosives Safety

Safety First

Zero Accident Policy

ISO 9001:2015

Quality Management System

PESO Licensed

Petroleum & Explosives Safety

Our Certified Testing Process

1. Dismantling & Purging

Dismantling high-pressure piping, cylinder de-valving & purging to ensure safe preparation.

2. Internal Cleaning

Meticulous internal cleaning and visual inspection for wear, corrosion, or defects.

3. External Shot Blasting

Wire brushing and shot blasting to remove old paint, rust, and contaminants.

4. Hydrostatic Stretch Test

Weighing and pressurizing the cylinder to test structural integrity and elasticity.

5. Ultrasonic Flaw Detection

Using advanced ultrasonic waves to detect any invisible internal flaws or cracks.

6. Internal Drying

Hot air process to completely remove moisture and prevent internal corrosion.

7. Stamping & Valve Re-fitting

Marking the cylinder with the new test date and professionally re-installing the valve.

8. Leak Test & Painting

Final safety leak checks followed by a fresh coat of high-quality paint.

9. Certification (PESO/TPI)

Issuing all official documentation, final testing reports, and compliance certificates.

Certification & Independent Third-Party Inspection

Verified and approved by India's leading safety and statutory authorities.

ISO 9001

Trusted by Top CGD Companies

Setting the standard for safety & reliability since 2010.

50+

MajorPartner

Frequently Asked Questions

Find quick answers about our services, safety standards, and operational expertise.

What core services does Green Gas provide?

We provide end-to-end solutions for the CNG and LNG industry, including Periodic Cylinder Re-testing, CNG Cascade Re-testing & Repair, Engineering & Maintenance, Cascade Handling & Transportation, and Turnkey Station Projects.

Where is Green Gas located and what is your presence?

We are strategically located across South India’s key natural gas and LNG connectivity hubs, with a strong presence in Chennai, Thiruvananthapuram, Cochin, Calicut, Kannur, and Tirupati.

How often should CNG cylinders be tested?

As per PESO (Petroleum and Explosives Safety Organization) regulations, high-pressure CNG cylinders must undergo periodic hydrostatic stretch testing every 3 years to ensure structural integrity and maximum safety.

What safety certifications do your facilities hold?

All our testing plants are completely PESO-licensed and ISO 9001:2015 certified. We strictly follow approved Standard Operating Procedures (SOPs) to maintain our "Safety First" standard with zero operational failures.

Do you handle transportation for cascades?

Yes, we offer comprehensive logistics solutions. Our services include specialized cascade handling and safe transportation backed by our dedicated fleet, ensuring your assets are managed securely end-to-end.

How can I book a testing service or request a quote?

You can easily reach out to us via the contact forms on this website, call us directly, or send us a message on WhatsApp. Our expert team will assist you promptly with scheduling and precise quotes.

Get in Touch

Reach out for certified cylinder testing, cascade repairs, and CNG station support.

Headquarters

GRN Green Gas
Chennai, Tamil Nadu

Contact Info

+91 96774 01119
chennai@greengas.co.in

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A One-Stop Solution for Clean Gas Infrastructure

PESO Compliant Operations

Your Trusted Partner in Clean Energy Solutions

Cylinders Tested

CGD Companies

Professional Team

Locations

Our Core Services

Periodic Cylinder Re-testing

CNG Cascade Re-testing & Repair

Maintenance Services

Cascade Handling & Transportation

Our Commitment to "Safety First"

ISO 9001:2015

PESO Licensed

Safety First

ISO 9001:2015

PESO Licensed

Our Certified Testing Process

1. Dismantling & Purging

2. Internal Cleaning

3. External Shot Blasting

4. Hydrostatic Stretch Test

5. Ultrasonic Flaw Detection

6. Internal Drying

7. Stamping & Valve Re-fitting

8. Leak Test & Painting

9. Certification (PESO/TPI)

Certification & Independent Third-Party Inspection

Trusted by Top CGD Companies

Frequently Asked Questions

Get in Touch

Headquarters

Contact Info

Contact Us