【機械(xie)三(san)通】什么(me)是機械(xie)三(san)通 機械(xie)三(san)通和溝槽三(san)通有什么(me)區(qu)別

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機械三通

機械三通與普通三通作用(yong)(yong)一致(zhi)。機(ji)(ji)械(xie)三(san)通(tong)分(fen)為溝槽(cao)機(ji)(ji)械(xie)三(san)通(tong)和螺紋機(ji)(ji)械(xie)三(san)通(tong)。它可用(yong)(yong)于直接(jie)在(zai)鋼(gang)管(guan)上接(jie)出支管(guan)，在(zai)消防管(guan)道及噴淋管(guan)道的安裝上有較多應用(yong)(yong)。在(zai)需要分(fen)流(liu)(liu)或合(he)流(liu)(liu)的時(shi)候可以采(cai)用(yong)(yong)機(ji)(ji)械(xie)三(san)通(tong)。

溝槽式三通、溝槽式四通、機械三通、機械四通等管件必須采用標準規格產品；支管接頭的開孔設施必須專門的開孔機。當支管管徑不符合標準規格時，可在接出管上異徑管等轉換支管管徑。首(shou)先在鋼管上用(yong)開孔(kong)機(ji)開孔(kong)，然后將機(ji)械(xie)三通(tong)卡入(ru)孔(kong)洞，孔(kong)四(si)周(zhou)由密(mi)封(feng)圈沿管壁密(mi)封(feng)。機(ji)械(xie)三通(tong)分絲接和(he)溝槽式兩種(zhong)。機(ji)械(xie)三通(tong)連接時，應(ying)檢查(cha)機(ji)械(xie)三通(tong)與孔(kong)洞的間隙，各(ge)部位應(ying)均勻，然后再緊固(gu)到位；機(ji)械(xie)三通(tong)開孔(kong)間距不應(ying)小于1m。

機械三通與溝槽三通區別

1、機械(xie)三通可用于(yu)直接在(zai)鋼管上接出支管。

2、首先在鋼管上用開孔機(ji)開孔，然后將機(ji)械(xie)三(san)通卡入(ru)孔洞(dong)，孔四(si)周由(you)密封(feng)圈沿管壁密封(feng)。機(ji)械(xie)三(san)通分絲接和溝槽式兩種。

3、正三通指支管(guan)與主管(guan)成90度(du)的(de)三通。

4、溝槽(cao)式連(lian)接方式廣泛(fan)用(yong)于建筑內的消火栓(shuan)系統與(yu)噴淋系統。

支管接(jie)(jie)頭(tou)是指在(zai)直(zhi)管管道(dao)(dao)中(zhong)部開孔后連(lian)(lian)接(jie)(jie)支管的鞍(an)形(xing)拼合(he)式(shi)連(lian)(lian)接(jie)(jie)件，分(fen)為(wei)機(ji)械(xie)三(san)通(tong)(tong)(tong)和機(ji)械(xie)四(si)通(tong)(tong)(tong)兩(liang)(liang)種類型。在(zai)設計(ji)圖紙上(shang)一(yi)般不會(hui)標注出溝槽三(san)通(tong)(tong)(tong)和機(ji)械(xie)三(san)通(tong)(tong)(tong)的。機(ji)械(xie)三(san)通(tong)(tong)(tong)或機(ji)械(xie)四(si)通(tong)(tong)(tong)與支管的連(lian)(lian)接(jie)(jie)方式(shi)有溝槽式(shi)連(lian)(lian)接(jie)(jie)和螺紋式(shi)連(lian)(lian)接(jie)(jie)兩(liang)(liang)種，當(dang)支管道(dao)(dao)小(xiao)于(yu)DN50，且主(zhu)(zhu)管道(dao)(dao)直(zhi)徑大于(yu)分(fen)支直(zhi)徑2倍時可用機(ji)械(xie)三(san)通(tong)(tong)(tong)（直(zhi)接(jie)(jie)在(zai)主(zhu)(zhu)管道(dao)(dao)上(shang)開孔，噴淋支管與主(zhu)(zhu)管連(lian)(lian)接(jie)(jie)用得多(duo)），其它情(qing)況(kuang)得用溝槽三(san)通(tong)(tong)(tong)。

這里(li)的溝(gou)槽(cao)三(san)(san)(san)通(tong)(tong)就是(shi)正(zheng)(zheng)(zheng)三(san)(san)(san)通(tong)(tong)（主支管(guan)中(zhong)心線(xian)成直(zhi)角），因為(wei)不像UPVC管(guan)、鑄鐵管(guan)除(chu)正(zheng)(zheng)(zheng)三(san)(san)(san)角還有Y三(san)(san)(san)通(tong)(tong)（斜三(san)(san)(san)通(tong)(tong)）、TY三(san)(san)(san)通(tong)(tong)。正(zheng)(zheng)(zheng)三(san)(san)(san)通(tong)(tong)與鍍鋅配件的三(san)(san)(san)通(tong)(tong)叫法一樣，只是(shi)鍍鋅三(san)(san)(san)通(tong)(tong)是(shi)絲扣連(lian)接(jie)(jie)(jie)，而這里(li)正(zheng)(zheng)(zheng)三(san)(san)(san)通(tong)(tong)是(shi)溝(gou)槽(cao)式連(lian)接(jie)(jie)(jie)，每(mei)個管(guan)道的平口端環形溝(gou)槽(cao)由(you)專門的滾槽(cao)機加工成型，與管(guan)道連(lian)接(jie)(jie)(jie)需要3副相(xiang)應規格卡箍才能完(wan)成一個接(jie)(jie)(jie)頭，適合主干管(guan)的連(lian)接(jie)(jie)(jie)。

至于機(ji)械三(san)(san)通主(zhu)管(guan)(guan)(guan)(guan)上只(zhi)需(xu)用開孔機(ji)開孔無需(xu)開槽(cao)，而支(zhi)(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)或(huo)開槽(cao)（溝槽(cao)式連(lian)(lian)接(jie)(jie)）或(huo)套絲（螺(luo)紋式連(lian)(lian)接(jie)(jie)），適合主(zhu)支(zhi)(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)間的連(lian)(lian)接(jie)(jie)（如噴淋(lin)系統的噴淋(lin)支(zhi)(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)）。另(ling)外還有(you)一(yi)種(zhong)小機(ji)械三(san)(san)通，只(zhi)是把(ba)卡(ka)箍換成了(le)U型卡(ka)，這(zhe)種(zhong)小機(ji)械三(san)(san)通與(yu)支(zhi)(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)連(lian)(lian)接(jie)(jie)還是以螺(luo)紋連(lian)(lian)接(jie)(jie)為主(zhu)，可能沒有(you)溝槽(cao)連(lian)(lian)接(jie)(jie)形式。正(zheng)(zheng)三(san)(san)通一(yi)般指(zhi)三(san)(san)個(ge)(ge)接(jie)(jie)管(guan)(guan)(guan)(guan)直(zhi)(zhi)徑(jing)(jing)相(xiang)同(tong)(tong)而異徑(jing)(jing)三(san)(san)通則(ze)(ze)三(san)(san)個(ge)(ge)接(jie)(jie)管(guan)(guan)(guan)(guan)直(zhi)(zhi)徑(jing)(jing)不完全相(xiang)同(tong)(tong)。正(zheng)(zheng)三(san)(san)通用于同(tong)(tong)一(yi)直(zhi)(zhi)徑(jing)(jing)管(guan)(guan)(guan)(guan)道(dao)連(lian)(lian)接(jie)(jie)之用，異徑(jing)(jing)三(san)(san)通則(ze)(ze)用于不同(tong)(tong)直(zhi)(zhi)徑(jing)(jing)管(guan)(guan)(guan)(guan)道(dao)的連(lian)(lian)接(jie)(jie)。機(ji)械三(san)(san)通連(lian)(lian)接(jie)(jie)的支(zhi)(zhi)(zhi)(zhi)管(guan)(guan)(guan)(guan)直(zhi)(zhi)徑(jing)(jing)絕不可能等于主(zhu)管(guan)(guan)(guan)(guan)直(zhi)(zhi)徑(jing)(jing)。