Description: TJ Williams Ltd was formed 150 years ago to supply nautical instruments and charts to the thriving shipping industry in South Wales. Today, T J Williams Instrumentation is a manufacturer of mechanical pressure gauges including Test Gauges, Tank Contents Gauges, Low-pressure Capsule Gauges, and Chemical Seals. TJ Williams Instrumentation also offers a comprehensive Calibration and Repair service on all types of Pressure, Temperature, Level, and Flow Instrumentation. Business Hours: Mon-Fri: 08:00 - 13:00,13:30 - 17:00 Sat-Sun: Closed