Nipple fittings used to connect female threaded pipes in pipeline. Nipples fittings has NPT,BSP,BSPT,DIN threaded. Size from 1/8”-4”.
Nipple can be made by investment casting and pipe cut ,two different styles.
With investment casting, need to from the source of mould design, will take much times to finish a nipple. But with investment casting, various deformed nipples or nipple with coupling can be designed, has more choices. Normal casting nipples are Hex nipple and Male and Female threaded adopters.
With pipe made nipples, first, to choose right thickness pipes, pipes has SCH 10,SCH 20,STD,SCH 40,SCH 80,SCH 160,XXS thickness. According to different requirement on pressure of fittings environment and conditions,just to choose right thickness and cut. Then machining by CNC lathes. Pipe cutted nipples has Barrel nipple, weld nipple and close nipple.
NPT threaded nipple fitting mostly adopted by United state and South America, North America.
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