Ulusi wa BSP (British Standard Pipe) ndi ulusi wa NPT (National Pipe Thread) ndi miyeso iwiri yodziwika bwino ya ulusi wapaipi, yomwe ili ndi kusiyana kwakukulu:
- Miyezo Yachigawo ndi Yadziko Lonse
BSP Threads: Awa ndi miyezo yaku Britain, yopangidwa ndikuyendetsedwa ndi British Standards Institution (BSI). Iwo ali ndi ngodya ya ulusi wa madigiri 55 ndi chiŵerengero cha taper cha 1:16. Ulusi wa BSP umagwiritsidwa ntchito kwambiri ku Europe ndi mayiko a Commonwealth, nthawi zambiri m'mafakitale amadzi ndi gasi.
NPT Threads: Izi ndi miyezo yaku America, yopangidwa ndikuyendetsedwa ndi American National Standards Institute (ANSI) ndi American Society of Mechanical Engineers (ASME). Ulusi wa NPT uli ndi ngodya ya ulusi wa madigiri 60 ndipo umabwera mowongoka (cylindrical) ndi mawonekedwe a tapered. Ulusi wa NPT umadziwika chifukwa chosindikiza bwino ndipo nthawi zambiri amagwiritsidwa ntchito kunyamula zakumwa, mpweya, nthunzi, ndi madzimadzi amadzimadzi.
- Njira Yosindikizira
BSP Threads: Nthawi zambiri amagwiritsa ntchito ma washer kapena sealant kuti asindikize.
NPT Threads: Zopangidwira kusindikiza zitsulo mpaka zitsulo, nthawi zambiri sizifuna zosindikizira zowonjezera.
- Malo Ofunsira
BSP Threads: Nthawi zambiri amagwiritsidwa ntchito ku UK, Australia, New Zealand, ndi madera ena.
NPT Threads: Zofala kwambiri ku United States ndi misika yofananira.
Zithunzi za NPT:Muyezo waku America wokhala ndi ngodya ya 60-degree, yomwe imagwiritsidwa ntchito ku North America ndi zigawo zogwirizana ndi ANSI.
Zithunzi za BSP:Muyezo waku Britain wokhala ndi ulusi wa digirii 55, womwe umagwiritsidwa ntchito ku Europe ndi mayiko a Commonwealth.
Nthawi yotumiza: May-27-2024