Flange, wanda kuma aka sani da flange ko flange. Flange wani sashi ne wanda ke haɗa igiyoyi kuma ana amfani dashi don haɗa ƙarshen bututu; Har ila yau, masu amfani suna da flanges akan mashigai da mashigar kayan aiki, waɗanda ake amfani da su don haɗa na'urori biyu, kamar flanges na gearbox. Haɗin flange ko haɗin haɗin flange yana nufin haɗin da za a iya cirewa ta hanyar haɗin flanges, gaskets, da kusoshi da aka haɗa tare azaman tsarin rufewa. Flange na bututun yana nufin flange da ake amfani da shi don bututun bututun kayan aikin, kuma idan aka yi amfani da shi akan kayan aiki, yana nufin mashigin da fitilun kayan aikin. Dangane da matakan matsin lamba na bawuloli daban-daban, ana saita flanges tare da matakan matsin lamba daban-daban a cikin flanges na bututun. Dangane da wannan, injiniyoyin Jamus daga Ward WODE sun gabatar da matakan matsin lamba da aka saba amfani da su bisa ga ƙa'idodin ƙasa da ƙasa:

A cewar ASME B16.5, karfe flanges da 7 matsa lamba ratings: Class150-300-400-600-900-1500-2500 (daidai na kasa misali flanges da PN0.6, PN1.0, PN1.6, PN2.5, PN4 .0, PN6.4, PN10, PN16, PN25, PN32Mpa ratings)

Matsakaicin ƙimar flange a bayyane yake. Flanges na Class300 na iya jure matsi mafi girma fiye da Class150 saboda Flanges Class300 yana buƙatar yin ƙarin kayan don jure matsi mai girma. Koyaya, ƙarfin matsawa na flanges yana tasiri da abubuwa da yawa. Ana bayyana ƙimar matsi na flange a cikin fam, kuma akwai hanyoyi daban-daban don wakiltar ƙimar matsi. Misali, ma'anar 150Lb, 150Lbs, 150 #, da Class150 iri ɗaya ne.