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WEH® Connector TW221 for bores and internal tube diameters, clamping lever actuation, max. 44 psi - Series

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  • Connection in seconds - Just PUSH to connect
  • No tapes, no thread sealants, no hand tightening required
  • For connection into straight tubes and bores
  • No seal adjustment required
  • Wide range of tube tolerances up to ± 0.25 mm
Video
  • WEH® TW221 | Function testing of straight tubes and bores
    WEH® TW221 | Function testing of straight tubes and bores
    The quick coupling TW221 is the right tool for leak tests in low pressure ranges up to max. 3 bar. The quick release coupling seals pressure-tight the interior tube diameter. Thus being ideal for dry applications.
Description
WEH® Connector TW221 for bores and internal tube diameters, clamping lever actuation, max. 44 psi - Series

The WEH® Quick Connector TW221 is the perfect tool for filling and evacuating as well as for pressure and vacuum testing of components at low pressure ranges.

The clamping lever actuation enables a pressure-tight connection in seconds to bores and straight tubes of copper, steel and aluminium sealing the female tube diameter. The easy handling protects operators' joints, shortens connection times and simplifies workflows.

The quick coupling is secured to the component by ist connection seal. Complex and expensive clamping and testing devices are eliminated. The elastic seals are very reliable and bridge tube tolerances of up to ± 0,25 mm (required roundness of internal tube diameter max. 0.25 mm). There is no seal adjustment required.

The quick connector is also used in the automotive industry for vacuum and leak testing with oilfree air respectively gaseous media or as plug for sealing ports. In the refrigerating and air conditioningindustry, the connector is used for filling and evacuating.

Features
  • Connection in seconds - Just PUSH to connect
  • No tapes, no thread sealants, no hand tightening required
  • For connection into straight tubes and bores
  • No seal adjustment required
  • Wide range of tube tolerances up to ± 0.25 mm
  • High-grade materials
Technical Data
Max. allowable operating pressure PS 3 bar
Temperature range +41 °F up to +176 °F
Media inlet G1/8" female thread
Max. allowable surface finish of test piece Rz8 μm
Leak rate 1 x 10-3 mbar x l/s
Actuation Manual actuation via clamping lever
Material Anodized aluminium (others on request)
Sealing material Front seal of SBR
Conformity / Tests / Approvals Pressure equipment directive 2014/68/EC
Application

Quick coupler for pressure / vacuum testing and to be used as plug for bores and pipes. Sealing in the internal diameter Ø 9.5 mm up to 24.4 mm. The WEH® Quick connects / disconnects have found use in the automotive industry and manufacturing industry for testing of:

  • Engine / engine blocks
  • Pressure vessels
  • Valves
  • Transducers
  • Compressors
  • Condensers
  • Tubing systems

The filling connector is also suitable for filling and evacuating for refrigeration and air conditioning components.

Downloads
Document type Format Size Download
Datasheet PDF 265 KB
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Fast test connections for straight and formed tubes - WEH® TW221

The clamping lever actuated quick coupling TW221 for low pressure testing, vacuum testing, leak testing, run testing and function testing of straight, swaged, flared and other formed tubes sealing the interior / inside diameter. They offer the fastest way to connect and disconnect thanks to the WEH® Jaw Locking Mechanism and the easy to operate clamping lever. Just push to connect - no need for hand-tightening, no tapes, no thread sealants.

The TW221 quick release coupling is mainly used for testing automotive and refrigeration air conditioning components like radiators, reservoirs, plumbs, fittings, tanks, engines / engine blocks, transmitters, heaters, valves, compressors, pressure vessels, etc. – they are tested faster than ever before. Also suitable for filling and evacuating of refrigerants or as plug for bores and pipes.

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