彎(wan)(wan)頭(tou)(tou)是水(shui)暖安裝中常用(yong)(yong)(yong)的(de)(de)(de)一種(zhong)(zhong)連接(jie)用(yong)(yong)(yong)管(guan)(guan)件,用(yong)(yong)(yong)于(yu)(yu)管(guan)(guan)道拐彎(wan)(wan)處的(de)(de)(de)連接(jie)，用(yong)(yong)(yong)來改變(bian)管(guan)(guan)道的(de)(de)(de)方(fang)向。其他名稱：90°彎(wan)(wan)頭(tou)(tou)、直角彎(wan)(wan)、愛而(er)彎(wan)(wan)、沖壓(ya)彎(wan)(wan)頭(tou)(tou)、壓(ya)制彎(wan)(wan)頭(tou)(tou)、機制彎(wan)(wan)頭(tou)(tou)、焊(han)接(jie)彎(wan)(wan)頭(tou)(tou)等。用(yong)(yong)(yong)途：連接(jie)兩(liang)根公稱通(tong)徑(jing)相同或者不同的(de)(de)(de)管(guan)(guan)子，使管(guan)(guan)路作90°、45°、180°及各種(zhong)(zhong)度(du)數的(de)(de)(de)轉彎(wan)(wan)。彎(wan)(wan)曲半徑(jing)小(xiao)于(yu)(yu)等于(yu)(yu)管(guan)(guan)徑(jing)的(de)(de)(de)1.5倍(bei)(bei)屬(shu)于(yu)(yu)彎(wan)(wan)頭(tou)(tou),大于(yu)(yu)管(guan)(guan)徑(jing)的(de)(de)(de)1.5倍(bei)(bei)屬(shu)于(yu)(yu)彎(wan)(wan)管(guan)(guan)。