Cng Cylinder and Cascade Hydro Testing


What is CNG CYLINDER Hydro Testing?
Hydro Testing which is also known as Hydrostatic Testing is a non-destructive test procedure to examine cylinders for leaks, structural flaws, durability, and corrosion. Cylinders structure integrity is also checked in the following process. The process also checks the pressure handling strength of the cylinder. It is called Hydrotesting because the cylinder is filled with water before heavy pressure is applied to it with the help of a high-pressure pump. If the cylinder is of low capacity it will show leakage. These cylinders are discarded immediately and are not allowed to be used.

CNG Cylinder Testing Procedure
- De-pressuring & Degassing of Cylinders
- Valve opening and Internal Inspection
- Internal cleaning of cylinders.
- Cylinder Wall Thickness measurement by Ultrasonic Thickness Tester.
- Water Jacket method for Hydrostatic stretch testing.
- Cylinder Drying, Internal / External Cleaning.
- Test mark sign is used after testing the fitness of the cylinder.
- Checking of Tare Weight
- Internal / External Inspection (bulge, burn, dents, dig, cut, pit and line corrosion etc.)
- Fixing of Valves
- Assemble & Disassemble of CNG Cylinder / Cascades
- Deliver the cylinder with Certificate.

Divine performs in-house Hydrostatic Testing
In addition to filling CNG cylinders, The Service Center is proud to offer in-house hydrostatic testing/requalification of cylinder.We feel that our customers are best served by us offering a complete line of cylinder services, all of which are performed in-house. By doing this, we are able to fill your cylinders and deliver back the exact quantity that we picked up.
Why Hydro Testing

Enhanced Safety:
Hydro testing detects internal damage or wear, helping prevent dangerous leaks or explosions.
Avoid Fines:
Stay compliant with government norms and avoid costly penalties through timely testing.
Guaranteed Refueling:
With a valid hydro test, CNG stations will refuel your vehicle without restrictions.
Better Mileage:
A properly tested CNG cylinder ensures your engine runs efficiently, improving fuel economy.
Valid Insurance Coverage:
Ensure your insurance claims are accepted by keeping your cylinder up to date
Long-Term Performance:
Regular testing helps maintain the health of your CNG system, extending its lifespan.
"Enhance your vehicle’s performance with our expert CNG services"
From fitting, testing to fueling, we’ve got you covered.