What are the standard methods for measuring pipe fitting dimensions?
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When measuring the angle of 90° elbows, different manufacturers use various methods: some calculate the angle, others use fixtures to hold the A and B ends and then measure it with an angle gauge, and yet others determine the bending radius by marking samples. If the same parameter yields different results due to these varying methods, how should a decision be made? Are there standards that specify the measurement methods?
No matter how it is measured. . Other measurements are also needed to complement it. . For example, is it the angle being measured, or are center height and port offset also needed to work together? . For example, is it the arc length being measured, or are the center height and port offset needed in combination? . It’s difficult to measure the radius; instead, measurement is taken up to the highest point for conversion. .
What I mean is, are there any standard specifications that define the method for measuring the elbow angle? What tools to use, how to measure, etc