The convex cap comprises a hemispherical cap, an elliptical cap, a disc cap and a spherical cap. From the point of view of force from the convex cap in the hemispherical cap from the bad gradually, but from the manufacturing difficulty point of view, gradually good manufacturing. Wall thickness: SCH5-SCH160 Standard: ASME DIN JIS BS GB / T JB SH HG

ANSI B16.9 caps specifications

High-quality products

 Since most of the pipe fittings is for welding, in order to improve the quality of welding,  the fittings end are bevelling groove, leaving a certain angle, with a certain edge, which is a relatively strict requirements, how thick edge, and how much deviation angle range has prescribed. Pipe fittings  surface quality and mechanical properties  and  tubes are same. In order to facilitate welding, the connected steel pipe and the fittings  materials  are  the same.

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Steel pipe caps production process

Steel pipe caps  workshop

Production Process