The Pioneer of Modern Leak Testing

Uson Innovative Leak Test Systems (UIS)

(Chinese Translation)

Uson Innovative Systems (UIS) are precision engineered leak test systems for manual, semi-automatic and fully automated leak testing. For decades, these systems were known as PREX. Uson has expanded its capabilities to a whole new level and now can design and manufacture leak testing equipment to customer requirements ranging from a simple fixture or quick connect coupling to complete systems including product delivery, sealing, clamping, test and marking.

Request a Quote

UIS Leak Test Systems at a glance

  • Pressure decay
  • Differential pressure
  • Vacuum
  • Functional
  • Manual, pneumatic, hydraulic
  • Unguarded (<2 bar / 30psi)
  • Manual, semi auto, 2handed HMI as specified by client
  • Light guard
  • PLC or relay
  • Ink marking, percussion, laser
Clamping & sealing
  • Automatic or manual
Sealing method
  • Flat pads or auto couplings.

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