Raise the pipe cap

Pipe cap, other names: head, plug, cap, pipe cover, blind head.
Purpose: Welding on the pipe end or installing on the external thread of the pipe end to cover the pipe fittings. Used to seal pipelines, with the same function as pipe plugs.
The pipe cap includes the design of convex pipe cap, conical shell, variable diameter section, flat cover and tight mouth.
Convex pipe caps include hemispherical pipe caps, elliptical pipe caps, disc-shaped pipe caps, and spherical cap shaped pipe caps. From the perspective of force, the hemispherical cap in the convex cap is gradually becoming less desirable, but from the perspective of manufacturing difficulty, it is gradually becoming easier to manufacture.