Differential Pressure Decay Testing

One of the fastest methods of leak testing, differential pressure decay is well suited for many applications. Like pressure decay, this method also involves measuring the drop in pressure inside the part over time as a result of escaping material. However, in a differential pressure test, the change in pressure is measured inside the part compared to the pressure inside a control volume charged to the same pressure as the part.

The differential pressure leak test, like the pressure decay test, is easy to set up, but can prove much more sensitive in certain leak detection applications. The sensitivity of the transducer is not related to the actual pressure in absolute or gauge pressure terms, but to the sensitivity of the differential pressure transducer at the test pressure

Our product line includes unparalleled differential pressure testers and equipment serving the automotive, engineering, medical device and pharmaceutical markets.

Uson offers the following products for differential pressure decay testing:

Optima vT – A versatile and customizable leak tester with up to two channels and eight sensor inputs that supports pressure decay, differential pressure, mass flow and other common tests

• Optima vT

Uson Innovative Systems (UIS) – Custom made manual, semi automatic and fully automatic leak test systems and fixtures

• Uson Innovative Systems (UIS)

Qualitek – Fast, sensitive and accurate pressure decay, differential pressure and mass flow leak testers

• Qualitek 626 Differential Pressure Decay Leak Tester
• Qualitek mR Pressure Decay, Differential Pressure and Mass Flow Leak Tester

Vector – Uson’s most powerful and configurable leak and flow tester, fully customizable pneumatics, up to ten independent test channels supporting a wide variety of input sensors

• Vector Functional Tester
• Vector Leak Tester