FLANGE ORIFICE SECRETS

In keeping with historic texts, the inch was first identified during the 7th century as a means of evaluating wound depth. Its 1st Formal definition dates from 1324 – a few grains of barley, dry and round, placed stop to finish, lengthwiseRecord/origin: The phrase "inch" was derived in the Latin device "uncia" which equated to "a person-twelfth"