Neck butt weld flange is a type of flange that is butt welded to the pipe through a taper neck structure, and its welding requires double-sided welding process, which has higher connection strength and stress resistance.
This flange is suitable for medium and high pressure piping systems with nominal pressure of 1.0-25.0MPa, especially suitable for high temperature, high pressure, low temperature and severe temperature and pressure fluctuations.
Its structural design effectively reduces the stress concentration phenomenon and improves the sealing performance through the optimization of the transition section between the cone neck and the round tube
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