The Pioneer of Modern Leak Testing

Qualipak 780 Large Pouch Leak Tester

Qualipak 780 series are non-destructive, non-subjective leak testers for non-porous package integrity testing of large and medium sized pouches, bags, and trays. Both the vacuum decay and vacuum force decay methods are available in the Q780 series meeting ASTM F2338-04 Standard Test Method for Non-destructive Detection of Leaks in Packages by Vacuum Decay Method.

The Qualipak 780 series may be used for package and process development. The sealing and leak tightness of materials when formed into packaging can be assessed from data using the optional analogue output. Valuable production time can be saved by optimizing sealing machine settings when material and specifications change. Package quality and productivity are improved by analyzing test data may be saved to a PC. Trends are identified allowing for corrective action or scheduling maintenance for the packaging line.

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 – China

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

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