T J Williams was formed over 150 years ago to supply nautical instruments and charts to the thriving shipping industry in South Wales.

T.J.Williams Instrumentation has evolved into the chemical and process industries markets through both its management and employees expertise. 

Today T J Williams Instrumentation is a manufacturer of Pressure/Vacuum gauges, Test Gauges, Tank Contents Gauges, Low pressure Capsule Gauges and Chemical seals

T J Williams Instrumentation also offers a comprehensive Calibration and Repair service on all types of Pressure - Temperature - Level - Flow instrumentation. We also recognise that our customers not only require quality products, but look to T J Williams too provide a design and development service that is maintained by working with ISO 9001:2000 accreditation.