Nondestructive Leak Testing

At LeakMaster, Non-Destructive leak testing is what we do! We pride ourselves on having a diverse lineup of leak test instruments. From pressure, vacuum and flow, to burst and ramp testing, we do it all, and we back our products with expert service and support you can only find at LeakMaster. 

Nondestructive leak testing (NDT) is used to evaluate components, subassemblies, or process systems without damaging or altering the tested product. NDT is performed in a wide range of industries, including medical device, automotive, heavy equipment, aerospace, pharmaceutical and food and beverage manufacturing to ensure product integrity and safety.
 

LeakMaster non-destructive leak testing methods

• Pressure Decay Leak Testing is a method used to detect leaks in a wide range of products and pressure ranges. Pressure decay is the most widely used method in leak testing. This technology involves pressurizing a sealed part or system and then monitoring the change in pressure over time with a precision pressure transducer. If the pressure drops (decays) it indicates the presence of a leak.

• Vacuum Decay Leak Testing is a method used to detect leaks in a wide range of products by drawing a vacuum on the test piece, then monitoring the change in vacuum level over time. If the vacuum level changes within the specified time, it indicates the presence of a leak.

• Mass Flow Leak Testing: Mass Flow leak testing is a non-destructive testing leak method used in a wide range of industries, from automotive parts, medical devices, to industrial components. This technology involves pressurizing a sealed part or system and then measuring the air flow required to maintain the setpoint or target pressure. Flow is deemed to be leakage. If the mass flow sensor detects flow after the part is sufficiently pressurized, it indicates the presence of a leak.
• Differential Pressure Decay Leak Testing: Differential pressure (DP) decay leak testing is a leak testing method used to detect smaller leaks than pressure decay can effectively measure. This non-destructive technology involves pressurizing a sealed part and a reference volume (dead volume) and then monitoring the difference in pressure between the device under test and the master volume over time. If the pressure difference between the two volumes changes too much, it indicates the presence of a leak (as the master volume should never leak).

• Occlusion Testing is a nondestructive technique designed to detect blockages or obstructions that could impede the proper functioning of devices such as catheters, IV sets, tubing sets, or injection molded components. Occlusion setup is relatively simple and can effectively flag a partially occluded part and excessive blockages with ease. Typically, there is no cycle time penalty to a normal test sequence, as the occlusion test is performed in conjunction with the fill step.

• Trace Gas Leak Testing: Trace gas leak testing is a method used to detect and measure small, microscopic gas leaks. This technique involves introducing a tracer gas such as helium into a system or component and then measuring the escape of this gas using specialized detectors. Tracer gas molecules are much smaller than air molecules, allowing tracer gas to leak more readily for quicker response times and lower leak measurement.

Non-Destructive Leak Testing Provides the Following Benefits

• Ensures quality control. Product safety issues are identified, enabling early detection of flaws which reduces the likelihood of catastrophic failures.
• Reliable and cost effective.
• Provides numeric values, not subjective like bubble testing.

Non-destructive testing (NDT) offers a safe and reliable way of inspecting components. Cost effective, NDT and requires little to no product waste and can help prevent accidents, which helps reduce product liability and costs associated with repairs and replacement.

Contact Us

To consult with one of our leak testing specialists, please see our Contact Us page.