Introduction to the usage analysis of pipe cap and

Introduction to the usage analysis of pipe cap and head  

Cap and head the use of these two pipe fitting products is the same, cap and head are widely used in petroleum, chemical industry, pipeline installation process, cap and head under the name of the pipe cap is more widely, the head is much less than the cap, that is to say, in the steel to seamless pipe fitting standard is the pipe cap.  Specifications are all small, large GB/T12459-2017 od 813-820 specifications.  That is to say, the specification of large GB/T13401-2017 standard is the big 1220 pipe cap product pipe cap is also known as: spherical head, butterfly head, ball crown head, conical shell head, flat bottom head.  

Pipe cap, also known as plug, LIDS, etc., it is welded on the pipe end or on the pipe thread cover plugging pipe fitting, used to closed pipe, tube cap diameter is generally within the DN, mainly used in pipe, pipe butt or as boards as strengthening effect, not as the main pressure parts, pipe cap commonly used material is:  Carbon steel, 20#, A3, Q235A, Q235B, 20G, 16Mn, ASTM A234WPB, ASTM A105, etc.  Stainless steel :304, 304L, 316, 316L, S30408, S30403, S31608, S31603, SUS304, ASTM  A403, TP321, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 1Cr18Ni9Ti, 06Cr17Ni12Mo2, 022Cr17Ni12Mo2 pipe cap diameter :15-800,BIHOU 10-160 production standards are divided into:  Gb standard, German standard, Italian standard, American standard, etc.  

The head is the end cover of the pressure vessel, which is a main bearing part of the pressure vessel. It plays a sealing role. First, it is made into the bottom of the tank pressure vessel, and the ear belt pipe is at the end.  According to the different geometric shapes, can be divided into the shapes introduced above.  Use with all kinds of container equipment.