Hydrostatic testing is an essential part of quality control and is the industry standard for most testing. These tests are performed to determine the safety and structural integrity of a variety of objects including gas cylinders, storage tanks, plumbing systems and chemical pipelines. The testing ensures that the object can withstand liquid pressure without rupturing or leaking. This testing also provides confidence that the object can endure exposure to corrosive environments without weakening. Hydrostatic testing is routinely used by engineers after repairs or alterations to confirm that equipment has been rebuilt or repaired properly. It also maintains equipment compliance. The testing interval requirements vary, depending on the type of equipment and industry.
Working with a company that offers hydrostatic testing services can save money, time, and resources. Employees risk injuring themselves if they are not specifically trained to perform these tests. Rocky Mountain Air is a DOT-Certified hydrostatic testing facility and can complete testing within one week. Rush orders are available in limited quantities and completed within 48 hours.
Ultrasonic Examination Testing
The ultrasonic examination testing system uses sensors that send and receive signals. High-frequency sound waves are directional. Longitudinal waves are directed at a 90-degree angle. They expose any defects in the cylinders and measure wall thickness flaws. Shear waves enter the cylinder at a 45-degree angle. They can locate and expose cracks in the material from any direction. A common application for UE testing is ultrasonic thickness measurement. It’s helpful in assessing pipework corrosion. Ultrasonic flaw detectors are used in safety and quality-related applications and are considered more efficient and non-destructive than other testing methods. However, some industries prefer other methods that can test the bottom of the cylinders.
To ensure safety and accuracy, it’s important that testing is completed by experienced professionals. Inaccurate assessments can lead to costly repairs and expose your employees to unnecessary risk. Rocky Mountain Air has certified technicians that are specifically trained for UE testing. We’ll answer any questions you have to establish your confidence in the process. In most cases, tests can be completed in one week.
How do you test cylinders to ensure they are safe?
At Rocky Mountain Air, we break down testing into a variety of steps so that we are actively ensuring cylinder service through every step of the way. The tester begins every cylinder test with a visual inspection of the cylinder to spot any obvious defects in the container. Then, we test the cylinder on a specialized piece of equipment in one of two ways: hydrostatically or ultrasonically. Cylinders tested hydrostatically are filled to the brim with pressurized water to determine if the cylinder will expand properly when it is filled. An ultrasonic testing machine scans the outer and inner facings of the cylinder walls to look for defects and cracks which could not be seen otherwise. Both methods are approved by the DOT to ensure the safety of cylinders filled in the USA. If the cylinder passes inspection, a stamp is applied to the shoulder of the cylinder starting the month and year the cylinder was tested, as well as, the RIN number which identifies the specific testing facility which examined that cylinder.
How do you fill cylinders with compressed gas?
There are massive facilities across the country called air separation plants. Their purpose is to take in the air that we breathe and separate each gases's atoms from the air and purify it. Once the gas is separated, it is converted into liquid product and shipped to various companies in large liquid tanker trailers. We store that liquid product in large ground storage units until ready for use. For liquid use customers, we syphon out some of the liquid product from the large tanks and put that liquid into smaller transportable vessels that we call Dewars or liquid cylinders. For high pressure applications, we use pumps to convert the liquid product back into gas and then push the now gaseous product into the cylinders that we provide.
Do you accept partially full cylinders of gas or liquid product as a return?
Unfortunately, our processes, as well as the regulations of the FDA on certain products, prevent us from accepting partially full items or items that are marked as full, but have left the company's possession. We will not accept a cylinder with some gas remaining as a return because we are committed to maintaining the purity and safety of all of our products we provide to our customers and prevent potential adulteration or contamination.
Common Applications of Hydrostatic Testing
Common Applications of Ultrasonic Examination Testing