WEH® Connector TW141L for testing straight tubes, filling of closed cooling circuits, lever actuation, vacuum up to max. 1,450 psi

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  • WEH® TW141L | Tube coupling for pressure tests
    WEH® TW141L | Tube coupling for pressure tests
    The WEH® TW141L Quick release pipe coupling provide optimum sealing on the tube OD (external diameter of tubes) within seconds. Thus being the ideal tool for leak tests, pressure tests and vacuum tests of pipes with smooth surface.
  • WEH® TW141L | Function
    WEH® TW141L | Function
    The WEH® Quick release coupling TW141L is very easy to use. Only place the quick disconnect onto the test piece and release the hand lever. The pressure-tight connection is established and the test media can be supplied. Now pressure testing / function testing of heat exchangers or other difficult-to-access test pieces can be effected.
WEH® Connector TW141L for testing straight tubes, filling of closed cooling circuits, lever actuation, vacuum up to max. 1,450 psi

The WEH® TW141L Quick Connector is ideally suited for function, pressure and leak testing of straight tubes and for filling closed cooling circuits with refrigerants.

The Connector has been developed especially for difficult-to-access test pieces. The extended body allows connection to closely spaced tubes.

The higher the test pressure, the tighter the WEH® Connector will clamp itself onto the threaded test piece port thus establishing a leak-tight connection in just seconds. An internal pressure support provides additional operator safety by ensuring that disconnection is not possible until pressure has decreased to a safe value below 5 bar.

The front O-ring reliably seals the connection and can be easily replaced during maintenance.

Thanks to the jaw locking mechanism, surface pressure and thus deformation of the test piece is reduced. Additional sealants are not required. Complex and expensive clamping and testing devices are eliminated.

The TW141 is a lever-actuated connector which creates no lateral forces that can distort the test piece or filling port when connecting and disconnecting. The easy and comfortable actuation of the connector makes for reduced testing times and facilitated workflows.

Technical Data
Max. allowable operating pressure PS Vacuum up to 1,450 psi (100 bar)
Temperature range +14 °F up to +176 °F
Connects to Tube OD 15.0 mm
Media inlet NPT 1/4" male thread
Max. allowable surface finish of test piece Rz8 μm
Max. allowable material hardness of test piece 28 HRC
Leak rate 1 x 10-3 mbar x l/s
Actuation Manual actuation via lever
Material Clamping jaws: Corrosion resistant stainless steel, hardened
Housing: Anodized aluminium
Sealing material Front seal of NBR
Conformity / Tests / Approvals Pressure equipment directive 2014/68/EC
  • Extended design for straight tubes that are very close to each other
  • Connection in seconds - Just PUSH to connect
  • No tapes, no thread sealants, no hand tightening required
  • For connection onto straight tubes, sealing on the exterior diameter
  • No lateral forces generated on connection
  • Unique WEH® Jaw Locking Mechanism
  • Ergonomic design
  • High-grade materials
Quick connector for pressure and function testing of straight tubes, as for example leak testing of heat exchangers, air conditioning components, tube assemblies and automotive fuel systems. Filling of closed cooling circuits with refrigerants.
TW141 L Leak proof connections
to heat exchangers


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Fast test connections for straight tubes - WEH® TW141L Quick Coupling

The manually actuated extended tube coupling TW141L for high pressure testing, leak testing and function testing of difficult to access straight tubes sealing the exterior diameter. They offer quick connect and quick disconnect thanks to the WEH® Jaw Locking Mechanism and the easy to operate hand lever. Just push to connect and the instant connection is provided - no tapes, no thread sealants. The TW141L quick release coupling is mainly used for testing refrigeration and air conditioning components.