Kodi ndi Mtundu wanji wa Chitoliro Chomwe Chimagwiritsidwa Ntchito Pa Mapaipi a Mafuta? Kodi Mitundu Itatu ya Mapaipi Ndi Chiyani?

Zinthu zopangidwa ndi chubu chachitsulo zimagwiritsidwa ntchito makamaka m'mapaipi amafuta chifukwa mapaipi amafuta amafunika mphamvu zambiri, kukana kupanikizika, komanso kulimba kuti azitha kuyenda mtunda wautali.
Chitoliro chogwiritsidwa ntchito kwambiri popanga zinthu za chitoliro ndi chitoliro cha kaboni chifukwa cha mphamvu zake zapamwamba, kugwiritsa ntchito bwino ndalama, komanso kukana dzimbiri zikaphatikizidwa ndi zokutira zakunja ndi chitetezo cha cathodic.
Miyezo ina yodziwika bwino ya mapaipi a mafuta ndi iyi:
Chitoliro chachitsulo cha ISO 3183
Mafotokozedwe apadziko lonse a mapaipi olumikizirana omwe amagwiritsidwa ntchito mumakampani amafuta ndi gasi. Izi zikuphatikizapo mapaipi osalumikizana komanso olumikizidwa ndi mipiringidzo kapena mbale kuti agwiritsidwe ntchito ngati mapaipi a m'mphepete mwa nyanja kapena m'mphepete mwa nyanja.
Chitoliro chachitsulo cha ASTM A106
Chitoliro cha Chitsulo cha Carbon Chopanda Seamless Standard ASM A106 chimaphatikizapo mapaipi achitsulo cha carbon chopanda seamless omwe cholinga chake ndi kugwiritsa ntchito kutentha kwambiri monga m'malo oyeretsera mafuta, malo opompa ndi othandizira mapaipi.
Chitoliro cha mafuta ndi gasi
Zimakhudza kwambiri makampani opanga mapaipi amzere, chivundikiro, ndi mapaipi opangira, mayendedwe, ndi kuboola.
Chitoliro cha mapaipi a petrolem. Kuzungulira chitolirochi kumakhudzana makamaka ndi mayendedwe achitsulo a mafuta osakonzedwa akutali komanso zinthu zoyengedwa, zopangidwa ndi chitsulo cha kaboni, zokutidwa ndi zokutidwa ndi zotsutsana ndi kuwonongeka ndipo nthawi zina mkati mwake zimakhala ndi zokutidwa zothandizira kuyenda kwa madzi.

Mapaipi amafuta akutali makamaka amakhala mapaipi akuluakulu a mainchesi, olumikizidwa kapena osasokedwa, achitsulo cha kaboni motsatira miyezo ya ISO, ASTM, kapena API."