This Standard covers overall dimensions, tolerances,ratings, testing, and markings for wrought factory-made buttwelding fittings in sizes NPS */2 through 48 (DN 15 through 1200)

This Standard covers overall dimensions, tolerances,ratings, testing, and markings for wrought factory-made buttwelding fittings in sizes NPS */2 through 48 (DN 15 through 1200)