Profile: John Mills and Sons (Newcastle) Ltd supplies bronze & aluminum bronze gate, globe, ball and check valves. Our valves are used for sea water service in the marine, oil and gas, nuclear, water treatment & chemical industries on cooling water lines, fire protection systems and other water services on ships, submarines, offshore platforms, coastal refineries, nuclear plants & desalination plants. Our standard valve range includes globe, gate, ball and check valves from 1/2 inches to 18 inches in bronze and aluminium bronze with a wide range of trims from stainless steel to monel.