For a Φ25 pipe, when used with Φ25 threaded connectors,
Thread Content
For a Φ25 pipe, when used with Φ25 threaded fittings, both have the same outer diameter, but their inner diameters are different, right? Will this work? If that doesn’t work, what size of threaded connectors should be used?
It mainly depends on whether your threaded fasteners have internal threads or external threads
For a Φ25 pipe, when used with Φ25 threaded fittings, both have the same outer diameter, but their inner diameters are different, right? I don’t understand what you mean. Φ25? DN25？ Internal threads are connected to external threads; the inner diameters may be the same, but how can the outer diameters be the same?
It is necessary to weld a single-start threaded stub to the pipe, or there are tools that allow one to thread a section onto the pipe by oneself.
There is a tube with an outer diameter of 25, and there are accessories connected to it; if those accessories have internal threads, what size should they be? I don’t understand the issue of compatibility; for example, if a pipe with an outer diameter of 25 is to be connected to a threaded valve, what size should that valve be?
Go and check the valve standards; I haven’t noticed any pipes that match a outer diameter of 25. DN15, outer diameter 22 ； DN25, outer diameter 33.4.
Ignore the outer diameter of the valve; since your pipeline is DN25, the threaded valve that matches it should also be DN25. It’s sufficient to specify what type of thread is required
The poster should be confused between the outer diameter and the inner diameter. The inner diameter is what it is, and the outer diameter is what it is too – don’t mix them up