... designed to the following pressure ratings: 150 lb, 300 lb, 400 lb, 600 lb, 900 lb,1500 lb and 2500 lb or 10 Bar, 15Bar, 25Bar, 40Bar, 64Bar ... /2”, 3”, 4”, 6” . Pressure ratings Class:150, 300, 400, 600, 900, 1500, 2500. PN :6, 10, 16, 25, 40, 64 ...