Count of flexible joints
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I’m facing another headache again. As we all know, threaded connections are generally used for small galvanized steel pipes, but I’ve heard that coupling fittings must be installed at the ends of the pipes. How should the number of these coupling fittings be determined?
It depends on how much is at the end of the tube
Is it the case that in practice, it isn’t counted sometimes?
Generally, galvanized pipes are 6 meters long each. When there are few pipe bends, the total length can be divided by 6, rounded up, and then 1 added; if there are many bends, the amount can be reduced accordingly. Valves or pipes that require maintenance should be counted separately. I hope this helps you
It’s probably only possible to make an approximate estimate based on the number of ends; a precise calculation is not feasible.
Excuse me, are you saying that a galvanized steel pipe needs to have a coupling every 6 meters? I don’t understand; isn’t it sufficient to have just one coupling per branch pipe? Also, please explain why elbows often need to be reduced as appropriate
The meaning of floor 4 is roughly as follows: 1. Generally, galvanized pipes are sold in lengths of 6 meters each; if a longer length is needed, joint fittings are used to connect two pipes together. For branch pipes 6 meters or less in length, a 6-meter-long pipe is usually sufficient, eliminating the need for a flexible joint. 2. If there are many elbows, many branch pipes may not even be 6 meters long; in such cases, a straight pipe can be connected directly to an elbow or tee without the need for a coupling. Counting a coupling every 6 meters for these pipes would result in an overestimation.
Thank you for clarifying. Do you mean that straight sections longer than 6 meters need to be connected using flexible joints?
The number of union fittings is not necessarily large; what’s important is that they allow the pipes to be divided into appropriate sections, making it easier to disassemble and maintain them. On the other hand, a large number of pipe couplings are required. When there aren’t many elbows or tees, one coupling per pipe is generally sufficient
I don’t think it’s necessary to keep statistics; it’s enough to know how much there is, which makes maintenance easier
No way – I think it’s impossible to solve the problem of tightening the last section of threads in pipes connected by threads without using union fittings.