What Is the Use of An Automated Pressure Leak Tester?
Automated Pressure leak tester is the most frequently used today. Its effortlessness makes it easy to automate and participate in production/assembly processes.
The pressure decay test fills a pressure vessel with air in most comfortable terms until it attains its target pressure. It then cuts the air source to insulate the pressure and measures the loss of that pressure over a set period; any loss in pressure indicates a leak. The pressure decay method’s sensitivity is a function of the test part’s size and the test time.
Most tests can be performed relatively quickly, with highly accurate results, but the larger the amount, the longer the cycle time required to achieve a precise test result.
You can also check our guide: What is the Difference Between A Conventional and a Computer-Controlled Automated Pressure Regulator?
Benefits of Pressure Decay Leak Testing
- Sensitive enough to detect tiny leaks
- Can work in pressure or vacuum environments
- Clarifies a leak rate based on pressure or vacuum
- Can calibrate to a volumetric flow
- Can report pressure or flow loss
- Provides a simple and highly active leak test method
Pressure Decay Leak Test Systems
Because the pressure decay method is so useful for leak testing and so popular across a wide range of industries and applications, it offers various pressure leak test solutions to meet your exact needs.
- Pressure decay
- Pressure decay with average leak calibration
- Differential pressure decline
- Disparity pressure with leak typical calibration
- Volumetric Fill (Sealed Device Leak Test)
Automated Pressure Leak Tester Accuracy
In most cases, the smallest pressure change that can be detected via the pressure decay test is 0.1 Pa/0.001 mbar/0.0000145 psi. Temperature variations can affect accuracy.
The pressure change is directly proportional to the leak rate; pressure change can be converted to leak rate if the test article’s internal volume is known. The pressure shift is measured accurately, and the test’s duration is recorded.
The Professionals in Pressure Test Solutions
Our wide-ranging knowledge of factors that impact and affect pressure decay testing enables our pressure leak tester units to avoid many part testing problems that can plague the end-user on the production floor. Pressure test systems are engineering to minimize ambient temperature and reduce test circuit capacity for better control. Upfront calibration methods are a prime example of getting the best value for the price as a client.
Doing an effective pressure leak test system involves much more than only offering a leak test instrument. It provides complete state-of-the-art leak test instruments built on proven mechanical designs and superior control engineering capabilities, backed with exceptional application support.
The industry offers a wide range of pressure instruments that can be flawlessly combined to create a turnkey pressure leak test solution.
How is an automated Pressure leak tester works?
To commence the Pressure Decay leak test, the test part [TP] is enclosed to the test port. The tester then presses the part with pressure [+P] to the chosen test pressure set by the pressure controller [R1] during the Fill step by unbolting valves [V1] and [V2].
Upon accomplishing the Fill step, the pressure is caught inside the part as [V2] closes. After a minor delay, [V1] closes, letting the line between [V1] and [V2] vent to air through [V1], allowing any leakage through [V2]. This causes the leak tester to see this leakage and fail all trials. The spare valve provides for a specific configuration.
Trapped pressure in the test circuit is held during the Stabilize step and then calculated by the testers’ pressure sensor during the Test step.
Suppose the part surpasses the involuntary leak tolerance. In that case, the tester’s display specifies why the test collapse and displays the pressure escaped or leak rate in user classified units of measure.
Upon finishing the Test step, pressure stuck in part is expelled to the atmosphere through [V1] by opening [V2] during the venture, and the tester is prepared for the next test.
Summed up
Leak testing is a necessary quality assurance procedure – leaky parts that slip up through the cracks lead to complications down the line or warranty claims. But operatives often lack the skill and the tools to ensure a steadily reliable seal between the part and the test station. This can spin test results, allow defective parts to pass and fail outstanding ones even if it isn’t the problem’s source.
