【機(ji)械(xie)(xie)三通】什么(me)是機(ji)械(xie)(xie)三通 機(ji)械(xie)(xie)三通和溝槽三通有什么(me)區別

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機械三通

機械三通與普通三通作用一(yi)致。機(ji)(ji)械三(san)(san)通(tong)(tong)(tong)分(fen)為(wei)溝槽(cao)機(ji)(ji)械三(san)(san)通(tong)(tong)(tong)和螺紋機(ji)(ji)械三(san)(san)通(tong)(tong)(tong)。它可用于直接在(zai)鋼管(guan)上(shang)接出支管(guan)，在(zai)消防管(guan)道及噴淋管(guan)道的安(an)裝上(shang)有較(jiao)多應用。在(zai)需要分(fen)流或合流的時候(hou)可以采用機(ji)(ji)械三(san)(san)通(tong)(tong)(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。首先(xian)在鋼(gang)管上(shang)用開孔(kong)機(ji)(ji)(ji)開孔(kong)，然(ran)后(hou)將機(ji)(ji)(ji)械三(san)通(tong)(tong)卡入孔(kong)洞，孔(kong)四周由密(mi)封(feng)(feng)圈沿(yan)管壁密(mi)封(feng)(feng)。機(ji)(ji)(ji)械三(san)通(tong)(tong)分絲接(jie)和溝(gou)槽式(shi)兩種(zhong)。機(ji)(ji)(ji)械三(san)通(tong)(tong)連接(jie)時，應檢查機(ji)(ji)(ji)械三(san)通(tong)(tong)與孔(kong)洞的間隙，各(ge)部位應均勻，然(ran)后(hou)再緊固到位；機(ji)(ji)(ji)械三(san)通(tong)(tong)開孔(kong)間距不應小于1m。

機械三通與溝槽三通區別

1、機械三通可用(yong)于直接在鋼管上接出(chu)支管。

2、首先在鋼管上用開孔機(ji)(ji)開孔，然后將(jiang)機(ji)(ji)械三(san)通(tong)卡入孔洞(dong)，孔四(si)周由密(mi)封圈沿管壁密(mi)封。機(ji)(ji)械三(san)通(tong)分絲接(jie)和溝槽(cao)式兩種(zhong)。

3、正三(san)通(tong)指支管與主管成90度的(de)三(san)通(tong)。

4、溝槽(cao)式連接方式廣(guang)泛用于建筑內的消火(huo)栓(shuan)系(xi)統與噴淋系(xi)統。

支(zhi)(zhi)管(guan)接(jie)(jie)頭是指在(zai)直管(guan)管(guan)道(dao)(dao)中部開(kai)孔后連(lian)接(jie)(jie)支(zhi)(zhi)管(guan)的鞍(an)形拼合式(shi)連(lian)接(jie)(jie)件，分為機械三通(tong)(tong)和(he)機械四通(tong)(tong)兩種類型。在(zai)設計圖(tu)紙(zhi)上一般不會標注出溝(gou)(gou)槽三通(tong)(tong)和(he)機械三通(tong)(tong)的。機械三通(tong)(tong)或(huo)機械四通(tong)(tong)與支(zhi)(zhi)管(guan)的連(lian)接(jie)(jie)方式(shi)有溝(gou)(gou)槽式(shi)連(lian)接(jie)(jie)和(he)螺紋式(shi)連(lian)接(jie)(jie)兩種，當(dang)支(zhi)(zhi)管(guan)道(dao)(dao)小于(yu)DN50，且(qie)主管(guan)道(dao)(dao)直徑大于(yu)分支(zhi)(zhi)直徑2倍(bei)時可用(yong)機械三通(tong)(tong)（直接(jie)(jie)在(zai)主管(guan)道(dao)(dao)上開(kai)孔，噴淋支(zhi)(zhi)管(guan)與主管(guan)連(lian)接(jie)(jie)用(yong)得(de)多(duo)），其它(ta)情況得(de)用(yong)溝(gou)(gou)槽三通(tong)(tong)。

這里的溝(gou)槽(cao)三(san)(san)(san)通(tong)就是(shi)正(zheng)三(san)(san)(san)通(tong)（主支管(guan)(guan)中心(xin)線(xian)成直(zhi)角），因(yin)為不像UPVC管(guan)(guan)、鑄鐵管(guan)(guan)除正(zheng)三(san)(san)(san)角還(huan)有Y三(san)(san)(san)通(tong)（斜三(san)(san)(san)通(tong)）、TY三(san)(san)(san)通(tong)。正(zheng)三(san)(san)(san)通(tong)與鍍(du)鋅配件的三(san)(san)(san)通(tong)叫法一樣(yang)，只是(shi)鍍(du)鋅三(san)(san)(san)通(tong)是(shi)絲(si)扣連接(jie)，而這里正(zheng)三(san)(san)(san)通(tong)是(shi)溝(gou)槽(cao)式連接(jie)，每個管(guan)(guan)道的平口端(duan)環形溝(gou)槽(cao)由專門的滾槽(cao)機(ji)加工(gong)成型(xing)，與管(guan)(guan)道連接(jie)需要3副(fu)相應(ying)規格卡箍才能(neng)完成一個接(jie)頭，適合主干管(guan)(guan)的連接(jie)。

至(zhi)于(yu)機械三(san)通(tong)(tong)主(zhu)管(guan)上只需(xu)用開(kai)孔機開(kai)孔無需(xu)開(kai)槽，而支(zhi)管(guan)或開(kai)槽（溝槽式連(lian)(lian)(lian)接(jie)(jie)）或套絲（螺(luo)紋式連(lian)(lian)(lian)接(jie)(jie)），適合主(zhu)支(zhi)管(guan)間的(de)連(lian)(lian)(lian)接(jie)(jie)（如噴淋系統的(de)噴淋支(zhi)管(guan)）。另外還有一種(zhong)(zhong)小機械三(san)通(tong)(tong)，只是(shi)把(ba)卡箍換成了(le)U型卡，這(zhe)種(zhong)(zhong)小機械三(san)通(tong)(tong)與支(zhi)管(guan)連(lian)(lian)(lian)接(jie)(jie)還是(shi)以螺(luo)紋連(lian)(lian)(lian)接(jie)(jie)為主(zhu)，可(ke)能(neng)(neng)沒有溝槽連(lian)(lian)(lian)接(jie)(jie)形式。正(zheng)(zheng)三(san)通(tong)(tong)一般指三(san)個(ge)接(jie)(jie)管(guan)直(zhi)(zhi)(zhi)徑(jing)(jing)相同(tong)而異(yi)徑(jing)(jing)三(san)通(tong)(tong)則三(san)個(ge)接(jie)(jie)管(guan)直(zhi)(zhi)(zhi)徑(jing)(jing)不(bu)(bu)完全相同(tong)。正(zheng)(zheng)三(san)通(tong)(tong)用于(yu)同(tong)一直(zhi)(zhi)(zhi)徑(jing)(jing)管(guan)道連(lian)(lian)(lian)接(jie)(jie)之用，異(yi)徑(jing)(jing)三(san)通(tong)(tong)則用于(yu)不(bu)(bu)同(tong)直(zhi)(zhi)(zhi)徑(jing)(jing)管(guan)道的(de)連(lian)(lian)(lian)接(jie)(jie)。機械三(san)通(tong)(tong)連(lian)(lian)(lian)接(jie)(jie)的(de)支(zhi)管(guan)直(zhi)(zhi)(zhi)徑(jing)(jing)絕不(bu)(bu)可(ke)能(neng)(neng)等于(yu)主(zhu)管(guan)直(zhi)(zhi)(zhi)徑(jing)(jing)。