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Leak Testing Basics

TQC Leak Test Systems
Other TQC Services
Contact Information

TQC Ltd, Hooton Street,
Carlton Road, Nottingham,
Notts. NG3 2NJ,

Tel: +44 (0) 115 9503561
Fax: +44 (0) 115 9484642


Automatic Sealing Connectors from TQC Ltd.

TQC can supply a standard range of automatic sealing connectors that can be used in a number of application including leak and pressure testing of parts. There are both internal bore and external bore variant available to connectors to internal bores from 10mm upto 75mm and from 3mm upto 71mm outer bore diameter sizes. Datasheets on these standard connectros are availble via the link above.

These automatic connectors are single acting and use a single actuation port, once actuated a piston act on a seal then expands the seal on the component. Connectors are supplied with a central test port which can be blanked off as necessary.

TQC have over the years developed special connectors based around the standard connectors, generally a solution can be found for any application!

Typical examples of when a special connector is required -

  • Part geometry does not suit the standard connector, TQC modify the design of the 'nose' of the connector to be suit (shorter or longer)
  • Test pressures exceed the valid standard connector values, TQC can supply connectro with gripping mechanism that secure the connector to the test part.
  • Multiple ports in close proximity, TQC can design a multi connector to suit the application
  • High speed application, TQC can provide a double acting connector so that the seal is positively released from the test part

Standard Internal & External Bore Connectors

Examples of Special Connectors


If you have a current project that requires sealing connectors, or you are considering new assembly or test equipment, call us and we will be happy to offer our professional advice & visit you at your site.

Air Decay Leak Testing :: Helium Leak Testing :: Pressure Testing :: Fixture & Seal Design Specialists