In-house Chief Controller of Explosive approved Hydrostatic Cylinder Testing Facility Cylinder cleaning as necessary

What is Hydrostatic Testing and why is it important?

Hydrostatic Testing is a nondestructive test procedure used to check cylinders for leaks, structural flaws, durability, and corrosion. It is used to check a cylinder’s structural integrity. Testing consists of enclosing a cylinder filled with water inside a test jacket filled with water. Pressure is then applied internally to the cylinder, causing the cylinder to expand. The total and permanent volumetric expansions of the cylinder are determined by measuring the amount of water displaced by the expansion of the cylinder when under pressure and after the pressure has been released. An external and internal visual inspection of the cylinder is also performed.

The Service Center performs in-house Hydrostatic Testing

In addition to filling CNG cylinders, The Service Center is proud to offer in-house hydrostatic testing/requalification of cylinders.

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.

Benefits of using The Service Center to perform hydrostatic testing of cylinders

• We perform CCOE approved hydrostatic testing in-house
• Your cylinders are always in our control
• You will receive clean cylinders – Guaranteed!

CNG Cylinder Testing

CNG cylinders are required to be tested periodically every 3 years as per gas Cylinder Rules, 2004. Following are the aspects of cylinder testing at HES:

• 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.