Determination of the thickness of blind plates for pipeline pressure testing
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Hello everyone. I would like to ask the experts: blind plates need to be made before pipeline pressure testing. How should the thickness of these blind plates be determined? It would be great if someone expert could provide the relevant tables or some small software, thank you. Distinguish between plug-in type and end blind plate type.
There’s no need for such complicated calculations. A simple and easy-to-remember method for estimating the thickness of pressure testing blind plates: for low pressure, it is the diameter multiplied by 0.07; for medium pressure, it is the diameter multiplied by 0.10; for high pressure, it is the diameter multiplied by 0.13. For diameters larger than DN600, this value can be reduced by 1/3, as the thickness does not need to be that great.
Hold it up by yourself; let someone more skilled come and take a look
For pressure testing only; those on the 3rd floor can refer to it.
Do you need reinforcement? Is the strength sufficient?
For pressure testing and sealing, it is best to use elliptical end caps with a pressure rating higher than that of the pipeline. If this is not possible, then pressure testing blind plates should be used; such blind plates installed between the equipment flanges need only have a wall thickness that is 1/3 greater than that of the pipeline walls. For the starting and ending points, without taking into account ball passage for diameter measurement, the methods described on page 3 can be applied, and calculations can be done manually. Reinforcement plates can be used; if ball passage for diameter measurement is taken into account, the blind plates at the ends should be made thicker, and the density of the reinforcement plates should be increased accordingly.
1. Simplify complex tasks; let the best person handle the most important ones. Friend on the 3rd floor, that’s interesting. 2. The simple approach is still based on certain principles; although the estimation formula for the third floor uses only the diameter D as a variable, and the other factor, pressure P, is not taken into account, in practice the upper limit of pressure classification is used, with the allowable stress being set at the yield strength plus a small safety factor. 3. Simplicity is beauty; wearing a piece of cloth on the street is stylish. Like
Such a great post – definitely worth a like