Go to GlobalSpec.com Home
Newsletter   FREE GlobalSpec e-Newsletters
Receive the latest news, trends, and technology relevant to your work.
(See Titles)

Failsafe Leak Testing

From InterTech Development Company
 

 
Failsafe leak testing, where one never misclassifies a bad part as a good part, is doable. Better yet, good parts are never misclassified as bad parts and yield is maximized. However, this standard of perfection is achievable only if one understands and manages all the factors that can undermine leak-testing integrity. By understanding the limitations of failsafe leak testing in the most widely applicable method, mass flow leak testing, practical steps can be taken to manage these factors so that quality standards are uncompromised. Whether a mass flow leak test is conducted upstream or downstream impacts both the difficulty of testing and the likelihood of making it failsafe. In upstream testing, a part is pressurized and the leak rate is determined by measuring what leaks into the part to replace what is leaking out. If the testing requirements are not as rigorous and the pressure requirements are not that high-for example, leak testing a casting at 10 psi-an upstream test will usually suffice.
Product Announcements
InterTech Development Company - Gas Valve
Superior Results with Downstream Leak Testing and Patented Bias Leak Test In this application, a family of high pressure cylinder valves are tested at a rate of 106 pph. at two independent stations... (read more)
InterTech Development Company - Mass Flow Leak detectors
InterTech M1075z Mass Flow leak detectors are designed for the high speed & accurate leak testing of parts ranging in volume from several cubic-centimeters to several liters in various methods. (read more)
Sciemetric Instruments - 3300 Leak Test System
Sciemetric's 3300 Leak Test System outperforms conventional leak test systems by decreasing test cycle time and detecting manufacturing defects other systems cannot find. One of the most advanced... (read more)
TM Electronics, Inc. - TME Worker Leak, Flow & Occlusion Tester
The TME Worker™ is a one port, high-res, pressure or vacuum Leak Tester, Leak/Flow Tester, or Leak/Occlusion Tester. Affordable, sensitive (resolution 0.0001 psi), repeatable, reliable, the... (read more)
InterTech Development Company - Blood Collection Kit
In-Line Leak Test with Superior Mass Flow Leak Test Technology InterTech M1075z Mass Flow leak detectors are designed for the high speed & accurate leak testing of parts ranging in volume from... (read more)
Assembly & Test Worldwide - Leak Testing Systems
Assembly & Test Worldwide (ATW) has a long history of performing leak tests in a range of industries, including the medical, automotive, and the consumer products industries. ATW has long been... (read more)
INFICON - Helium Leak Detectors
Setting the standard for reliability and ease of operation, helium leak detectors are available for a wide range of applications-from pinpointing small leaks in high-vacuum systems to heavy-duty... (read more)
 
Topics of Interest
Since our products are leak tested before they are shipped, you should never find one of our products to leak. If you ever find that one of our products is leaking, chances are you are looking at a... (Read More)
A North American power train manufacturer was recently challenged with production leak testing 3 models of cast aluminum transmission housings. Model types are randomly presented to the fully... (Read More)
When a manufacturing firm produces a product designated for use in the medical field, the company must supply one element regardless of part design: assurance. Through the use of in-line product... (Read More)
New flange and gasket designs are incorporating tightness factors in their calculations to reduce leak rates. Traditional ASME Section VIII code utilizes m and y gasket factors in the design... (Read More)
Mass flow is any pressure change measured by the pressure sensor is compensated for by inputting air into the test part. The amount of air that enters is measured by the flow sensor, directly... (Read More)