WEH® Connector TW02 for testing of external tubes and hoses, pneumatic actuation, vacuum up to max. 35 bar - Product family

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WEH® Leak Test Connector TW02 for automated vacuum and pressure testing up to max. 35 bar

The WEH® TW02 Quick Connector is the perfect tool for pressure and vacuum testing as well as for pressure decay, underwater and helium testing. The Connector reliably and quickly seals external tubes and externally threaded components, and can also be used for flushing and filling.

The pneumatic actuation makes the coupling the ideal choice for quality testing during production and automation of test procedures, thus increasing productivity.

Only plug the connector onto the test piece, apply pilote pressure and the pressure-tight connection is established - in just seconds without tedious hand-tightening. The easy handling creates significant time and cost saving.

The elastic front seal compresses onto the test piece, compensating for possible tolerances in a component‘s size and reliably seals out of round and rough surfaces. The connector only clamps itself firmly over the sealing rubber of the test piece, but does not have any retaining function. Therefore a fixture must be used.

Special versions, e.g. twin connectors for sealing ports in close proximity to each other are available on request.

TW02 Quick coupling sealing beads on external diameter (connected)

TW02 for automated leak tests

Max. allowable operating pressure PS
Vacuum up to 35 bar (510 psi)
Pilot pressure
6 - 12 bar compressed air
Temperature range
+5 °C up to +80 °C
Leak rate
1 x 10-3 mbar x l/s
Pneumatic actuation
Housing, piston and seal housing: Aluminium
Sealing material
Main seal chloroprene / o-rings NBR
For body size 001 main seal and o-rings are NBR.
Urethane seals for high-wear applications are optional, e.g. for threaded applications.
Marketing Features
  • Automation possible
  • Increased productivity & Cost reductions
  • Connection in seconds
  • Ergonomic design
  • High-grade materials
  • No hand tightening required
  • Sealing irregular or rough surfaces
  • Simple seal replacement

Quick coupler for pressure testing / vacuum testing of straight tubes (sealing range external tube Ø 0.8 mm up to 77.0 mm), rubber hoses, valves and components with male thread, bead or collar. Other applications are:

  • Automated leak tests
  • Threaded connections with pressure converter
  • Leak testing benches
  • Helium testing
  • Pick & place applications in automation technique / automated systems
  • Leakage tests in electric mobility
  • Robotics
CAD Files
Data sheets
Data sheet EN 455 KB
Data sheet DE 455 KB
Operating instructions
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