彎(wan)(wan)頭(tou)是(shi)水暖安裝中常用(yong)(yong)的(de)(de)一(yi)種(zhong)連(lian)(lian)(lian)接(jie)用(yong)(yong)管(guan)(guan)(guan)件,用(yong)(yong)于(yu)管(guan)(guan)(guan)道(dao)拐彎(wan)(wan)處的(de)(de)連(lian)(lian)(lian)接(jie)，用(yong)(yong)來改變管(guan)(guan)(guan)道(dao)的(de)(de)方向(xiang)。其他名稱：90°彎(wan)(wan)頭(tou)、直角彎(wan)(wan)、愛(ai)而彎(wan)(wan)、沖壓(ya)彎(wan)(wan)頭(tou)、壓(ya)制彎(wan)(wan)頭(tou)、機制彎(wan)(wan)頭(tou)、焊接(jie)彎(wan)(wan)頭(tou)等(deng)(deng)。用(yong)(yong)途：連(lian)(lian)(lian)接(jie)兩根公稱通徑相同或者(zhe)不同的(de)(de)管(guan)(guan)(guan)子，使管(guan)(guan)(guan)路(lu)作90°、45°、180°及各(ge)種(zhong)度數的(de)(de)轉彎(wan)(wan)。彎(wan)(wan)曲半徑小于(yu)等(deng)(deng)于(yu)管(guan)(guan)(guan)徑的(de)(de)1.5倍屬于(yu)彎(wan)(wan)頭(tou),大(da)于(yu)管(guan)(guan)(guan)徑的(de)(de)1.5倍屬于(yu)彎(wan)(wan)管(guan)(guan)(guan)。