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

Zoom +

More about this Item
  • WEH® Connector TW02 | A real multi-talent for leak tests
    WEH® Connector TW02 | A real multi-talent for leak tests
    Like all WEH® Products the TW02 is extremely durable, easy to maintain and achieves impressive cost savings as a result of excellent productivity gains. Tubes, hoses and many other components can be instantly connected ready for leak testing, vaccum testing, helium testing and function testing. Automated test procedures allow for significant cost reductions and productivity gains.
  • WEH® Connectors | Automated testing simple & efficient
    WEH® Connectors | Automated testing simple & efficient
    WEH provides ideal connections for automation technology. WEH Connectors enable high quantities to be tested for leakage quickly and reliably during production. The TW17 Quick Connector with pneumatic actuation for automated applications and controls connects pressure-tight in seconds to female threads. The TW02 Quick Coupling for automated testing is the ideal tool for connecting to the outer diameter of straight tubes and hoses.
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 male 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.

Technical Data
Max. allowable operating pressure PS Vacuum up to 510 psi (35 bar)
Pilot pressure 60 - 175 psi (4 - 12 bar compressed air
With pilot pressure booster up to 610 psi (42 bar) hydraulic pressure
Temperature range +41 °F up to +176 °F
Leak rate 1 x 10-3 mbar x l/s
Actuation Pneumatic actuation
Material 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.
  • Automation possible
  • Connection in seconds - Just PUSH to connect
  • No tapes, no thread sealants, no hand tightening required
  • Increased productivity & Cost reductions
  • Sealing irregular or rough surfaces
  • Simple seal replacement
  • Ergonomic design
  • High-grade materials

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 external 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
TW02 for automated leak tests
TW02 Quick coupling sealing beads on
external diameter (disconnected)
TW02 Test fitting for rubber hoses


Document type Download
Press release
Read more

Fast test connections for smooth tubes with straight tube ends - WEH® TW02

WEH offers fastest connectors for components with smooth tubes with straigh tube ends, bead or collar sealing exterior diameter. The pneumatically actuated quick coupling TW02 is the ideal test fitting / tool for low pressure testing, leak testing, vacuum testing and function testing. With the automated processes and high volume production testing is child's play. The TW02 sealing the external diameter and provides instant sealing from vacuum up to max. 35 bar (510 psi).

It provides fast leak tight connections thanks to the WEH® Jaw Locking Mechanism – Just push to connect. The quick release coupling establish a fast, leak free connection into rough and oily surfaces. With the TW02 components are tested faster than ever before.

The quick release coupling is used for automated connections in pressure and proof testing, fluid filling, flushing applications, material handling or manufacturing processes and for in-process leak testing of components like cylinders, tanks, valves, regulatores, meters, plastic containers, plumbing fixtures, pumps, medical devices, filters, pressure vessels, tube assemblies, etc.