Leak Testing: Leak test machines

Standard machines and bespoke solutions

The test method used depends on the application and the leak rate that is acceptable, these principles are outlined on the Basic Principles Page.

TQC Ltd specialise in automatic leak testing of components using water submersal, air decay, vacuum or hyrdrogen / helium tracer gas methods.

Pressure/Vacuum - for these systems, TQC have experience of supplying a range of leak measurement instruments from different suppliers. Test pressures between vacuum and 16bar (150psig) are available as standard. Leak measurement may be made down to a resolution of 1 atm.mm3/sec. All test parameters may be programmed into the instruments, and the result data is available for subsequent SPC analysis.

Pressure decay machines are: lowest cost solution, simple to understand, give direct value results, offer direct calibration, are temperature dependent, require that the component must be stable

 Helium Systems - for these systems, TQC Provide complete test facilities utilising leak test instruments and pumping groups from leading global suppliers. Helium leak testing, is generally used for specifications which are too stringent for pressure decay, or where the component is large in volume or not stable in shape or temperature. The leak measurement resolution may be typically 1 x 10-6 atm.mm3/sec.

Helium detection machines: are the most sensitive (typically 1 x 10-6, 1 x 10-10 is possible), are independent of temperature, are independent of volume, offer high throughput, are the most expensive solution, and are often the
most complex.


Test equipment capabilities

TQC combines extensive experience with a modular approach. The best modern data capture methods and proven software techniques are engineered into your production environment to provide reliable and easily maintainable equipment.

  • Air/vacuum leak testing
  • Gas trace leak testing
  • Flash testing
  • Environment Testing
  • Pressure
  • Flow

To find out more about how we can help you with your leak testing requirements:

We build all machines in-house, applying our 25+ years experience in specialised test and automated handling machines experience to the engineering projects we undertake. We offer customer support, backup and service call-out for all projects, whatever the size.

Get in touch with us to discuss your requirements and we will be happy to offer our professional advice and visit you at your site.

TQC Ltd, Hooton Street, Carlton Road, Nottingham, NG3 2NJ, United Kingdom
Tel: +44 (0)115 9503561   |   Fax: +44 (0)115 9484642   |   E-mail: sales@tqc.co.ukSGS