Measurement of the pipe diameter
External pipe diameter - actual pipe diameter considering wall thickness
Note. When using the welding gauge it is advisable to measure the diameter in the range from 133 to 273 mm
![](https://cdn-ru.bitrix24.ru/b7836503/landing/37c/37cdddefdfa7654c7c682b6ddea1c548/02_v.2_2_1x.png)
positioning the welding gauge
- Before positioning the welding gauge, move the linear member 3 to a value of 50 mm and fix it in this position by tightening the nut of the set screw 6
- Continually pushing the fillet arm 2 and the top High-Lo arm 4 until it makes contact with the inspected object, find the position at which the values of the parameters h and k become equal.
![](https://cdn-ru.bitrix24.ru/b7836503/landing/e66/e66ed47bb7b10ec69650a66008f95701/2_2x.png 2x)
˟ красным цветом выделены параметры, подлежащие измерению
measurement taking
- Take the parameter h from the vertical scale H or the parameter k –from the vertical scale K. To determine the desired parameter D, illustrated by Figure
- To determine the desired parameter D, use the calculator