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The Pioneer of Modern Leak Testing

Air Flow – Mass Flow Leak Testing

(Chinese Translation)

Mass flow or air flow testing uses flow measurement devices to calculate leak rates based upon the rate of air flow through the device. This technique is suitable for small and large volumes and is often applied to test kitchen appliances, gas meters, exhaust systems and other products where gas or air is required to flow through the item.

As a leak testing technique, mass flow measurement is very useful for detecting small leaks in large volumes. When selecting a mass flow tester it is important to select the correct flow meter range to ensure that the desired amount of sensitivity is achievable. Uson’s leak test application engineering group are available to help you with this.

Uson offers the following products for air flow 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

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

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

Sprint – Small foot print single or multi channel pressure decay and flow testers

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

Contact Us


Uson L.P. - Corporate

8640 N. Eldridge Parkway
Houston, TX 77041 USA

Tel: +1-281-671-2000
Fax: +1-281-671-2001


Uson UK – Europe

Western Way
Bury St. Edmunds
Suffolk, IP33 3SP United Kingdom

Tel: +44-1284-760606
Fax: +44-1284-763049


Uson – Detroit

31471 Utica Rd
Fraser, MI 48026 USA

Tel: +1-248-589-3100
Fax: +1-248-589-3103


Uson – China

Room 601, 567 Lan Gao Road
Shanghai, 200333, China

Main: 021-583 65859, 021-583 59187
Fax: 021-583 59185, 021-337 73559