Hydrotesting is a vital procedure for maintaining the safety and reliability of Compressed Natural Gas (CNG) cylinders. These cylinders are crucial for transporting and storing natural gas, and ensuring their integrity is critical to safeguarding lives, property, and the environment. Here’s why hydrotesting is necessary:

1. Ensuring Safety

CNG cylinders endure high pressures during use, which can cause wear, corrosion, or microcracks over time. Hydrotesting identifies these issues, ensuring the cylinder can safely handle the required pressure levels.

2. Regulatory Compliance

Regulatory bodies mandate periodic hydrotesting of CNG cylinders to certify their continued use. This testing ensures that cylinders meet stringent safety and performance standards, protecting users and operators.

3. Leak Detection

Hydrotesting involves filling the cylinder with water and pressurizing it beyond its normal working pressure. This process helps detect leaks, cracks, or deformities that might not be visible during routine inspections.

4. Extending Cylinder Life

Regular hydrotesting allows for early detection of issues, enabling timely maintenance or replacement. This proactive approach extends the cylinder's lifespan and minimizes the risk of unexpected failures.

5. Environmental Responsibility

Faulty CNG cylinders could result in gas leaks, posing a risk to both safety and the environment. By ensuring the integrity of these cylinders through hydrotesting, we contribute to a safer and cleaner environment.

Ensuring the safety and reliability of your CNG cylinders is our top priority. Here’s why you should choose us for your testing and inspection needs:

Certified Expertise

Our testing is PESO-approved and ISO 9001:2015 certified, ensuring your CNG cylinders meet the highest safety standards.

Thorough Testing and Inspection

We conduct comprehensive tests and inspections to confirm the safety and functionality of your cylinders.

Prioritizing Safety

Regular inspections and testing every three years are essential, and we make this process effortless for you. Your cylinder safety is our foremost concern.

Detailed Certification

With every tested cylinder, we provide a certified metal plate and a test certificate, ensuring you have all necessary documentation for your records.

Complete Reinstallation Service

Besides testing, we inspect all kit-related parts, joints, and fittings to ensure there are no leaks or issues. We also provide a reinstallation certificate for added peace of mind.
Safety is non-negotiable—choose us for trusted, reliable, and certified CNG cylinder testing services.

Hydrotesting is an essential procedure to ensure the safety and reliability of Compressed Natural Gas (CNG) cylinders. This process involves applying water pressure higher than the cylinder's normal working pressure to verify its structural integrity. Here's a detailed look at how hydrotesting is performed:

1. Preparation

Visual Inspection: Initially, the cylinder undergoes a visual inspection for any signs of external damage, corrosion, or deformities. Cylinders that fail this inspection are excluded from further testing.
Cleaning: The cylinder is thoroughly cleaned to eliminate any contaminants that might affect the test results.

2. Filling with Water

The cylinder is then completely filled with water. This step is crucial as it mitigates the risk of a sudden release of energy, which could occur with compressed gas under pressure.

3. Pressurization

Using specialized equipment, the cylinder is pressurized to a level higher than its normal operating pressure, typically about 1.5 times the working pressure. The pressure is maintained for a specific duration as per regulatory standards.

4. Monitoring for Leaks or Deformation

During the hydrotest, the cylinder is closely monitored for:
Leak Detection: Any water leakage indicates a failure in the cylinder's structural integrity.
Permanent Deformation: Measurements are taken to ensure the cylinder returns to its original dimensions after the test. Permanent expansion beyond acceptable limits signifies failure.

5. Certification

Cylinders that pass the hydrotest are certified for safe use and marked with the test date. Cylinders that fail are either repaired, if possible, or scrapped to prevent unsafe use.
Importance of Hydrotesting
Hydrotesting is vital for identifying potential issues such as cracks, leaks, or material fatigue. This ensures that CNG cylinders can safely withstand their operating pressures, thereby protecting users, vehicles, and the environment.