ANSI American standard pipe cap

ANSI American standard pipe cap is a pipe fitting welded at the pipe end or installed outside the pipe end to cover and block the pipe. Pipe cap is also known as head, plug, cap, pipe cover, or plug. Used to seal pipelines, with the same function as pipe sealing heads. Used for various container equipment, such as storage tanks, heat exchangers, towers, reactors, boilers, and separation equipment. Pipe cap is an excellent and important component of pressure vessel equipment in many industries such as petrochemicals, nuclear energy, water conservancy, food, machinery, diagnostic and treatment equipment, fertilizers, shipbuilding, etc. A pipe cap is an end cap on a pressure vessel and is a major pressure bearing component of the vessel. Its function is sealing. A pipe cap is used to seal the upper and lower bottoms of a tank pressure vessel or the end of a pipeline that is no longer intended to extend forward, by welding the pipe with a pipe cap. After the pipe cap is welded, it cannot be disassembled again. The quality of the pipe cap directly affects the long-term performance and good operation of the pressure vessel

ANSI American standard pipe caps are divided into carbon steel and stainless steel according to manufacturing materials. Carbon steel: (20 #, A3, Q235, Q23 excellent, Q235B, 20G, 16Mn, Q345, Q345R, ASTM A234WPB, ASTM A105, etc.); Stainless steel: (304, 304L, 316, 316L, S30408, S30403, S31608, S31603, SUS304, ASTM A403, TP321, TP317L, 347, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 1Cr18Ni9Ti, 06Cr17Ni12Mo2, 022Cr17Ni12Mo2, etc.)

Common execution standards for ANSI American standard pipe caps: ANSI B16.9

National pipeline standards: GB/T12459-2017, GB/T13401-2017

Petrochemical standards: SH/T3408-2012 steel butt welded seamless pipe fittings, SH/T3409-1996 steel plate butt welded pipe fittings, SH/T3410-2012 forged steel socket welded pipe fittings

Pressure vessel head standard: GB/T25198-2010