【機(ji)械三(san)通(tong)】什(shen)么是機(ji)械三(san)通(tong) 機(ji)械三(san)通(tong)和溝槽三(san)通(tong)有什(shen)么區別

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機械三通

機械三通與普通三通作用一(yi)致。機(ji)械三(san)通(tong)分為溝(gou)槽機(ji)械三(san)通(tong)和螺紋機(ji)械三(san)通(tong)。它可用于直(zhi)接在鋼管(guan)上接出支管(guan)，在消防管(guan)道(dao)及噴淋管(guan)道(dao)的安裝上有較多應用。在需要分流(liu)或合流(liu)的時候(hou)可以采用機(ji)械三(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(zai)鋼(gang)管上用(yong)開(kai)孔(kong)機開(kai)孔(kong)，然(ran)后將機械三(san)通卡入孔(kong)洞(dong)，孔(kong)四周由密封圈沿管壁密封。機械三(san)通分(fen)絲接(jie)和(he)溝槽式(shi)兩(liang)種(zhong)。機械三(san)通連接(jie)時，應(ying)檢查機械三(san)通與孔(kong)洞(dong)的(de)間隙，各部位(wei)(wei)應(ying)均勻(yun)，然(ran)后再(zai)緊固到位(wei)(wei)；機械三(san)通開(kai)孔(kong)間距不(bu)應(ying)小于1m。

機械三通與溝槽三通區別

1、機械(xie)三通(tong)可(ke)用于直接在(zai)鋼管上接出(chu)支管。

2、首先在鋼管(guan)上用開孔(kong)機(ji)開孔(kong)，然后將機(ji)械三通卡入孔(kong)洞，孔(kong)四(si)周由密(mi)封(feng)圈沿(yan)管(guan)壁密(mi)封(feng)。機(ji)械三通分絲接和溝槽式兩(liang)種。

3、正(zheng)三(san)通(tong)指支管(guan)與(yu)主管(guan)成90度(du)的三(san)通(tong)。

4、溝槽式(shi)連(lian)接(jie)方式(shi)廣(guang)泛用于建筑內的消火栓系統與(yu)噴淋系統。

支(zhi)(zhi)管(guan)(guan)(guan)接(jie)(jie)(jie)頭(tou)是指(zhi)在(zai)直(zhi)(zhi)管(guan)(guan)(guan)管(guan)(guan)(guan)道(dao)中部開孔后(hou)連(lian)接(jie)(jie)(jie)支(zhi)(zhi)管(guan)(guan)(guan)的(de)鞍形拼合式(shi)連(lian)接(jie)(jie)(jie)件，分為機(ji)(ji)械三(san)(san)通(tong)(tong)(tong)(tong)和(he)(he)機(ji)(ji)械四(si)通(tong)(tong)(tong)(tong)兩(liang)(liang)種類型。在(zai)設計圖紙上一般(ban)不(bu)會標注出溝(gou)(gou)槽(cao)三(san)(san)通(tong)(tong)(tong)(tong)和(he)(he)機(ji)(ji)械三(san)(san)通(tong)(tong)(tong)(tong)的(de)。機(ji)(ji)械三(san)(san)通(tong)(tong)(tong)(tong)或機(ji)(ji)械四(si)通(tong)(tong)(tong)(tong)與支(zhi)(zhi)管(guan)(guan)(guan)的(de)連(lian)接(jie)(jie)(jie)方式(shi)有溝(gou)(gou)槽(cao)式(shi)連(lian)接(jie)(jie)(jie)和(he)(he)螺紋式(shi)連(lian)接(jie)(jie)(jie)兩(liang)(liang)種，當支(zhi)(zhi)管(guan)(guan)(guan)道(dao)小于DN50，且主(zhu)管(guan)(guan)(guan)道(dao)直(zhi)(zhi)徑大(da)于分支(zhi)(zhi)直(zhi)(zhi)徑2倍時可用機(ji)(ji)械三(san)(san)通(tong)(tong)(tong)(tong)（直(zhi)(zhi)接(jie)(jie)(jie)在(zai)主(zhu)管(guan)(guan)(guan)道(dao)上開孔，噴淋支(zhi)(zhi)管(guan)(guan)(guan)與主(zhu)管(guan)(guan)(guan)連(lian)接(jie)(jie)(jie)用得(de)多），其(qi)它情況得(de)用溝(gou)(gou)槽(cao)三(san)(san)通(tong)(tong)(tong)(tong)。

這(zhe)里的(de)溝槽三(san)通(tong)(tong)(tong)就是(shi)(shi)正三(san)通(tong)(tong)(tong)（主支管中心線成直(zhi)角(jiao)），因為(wei)不(bu)像UPVC管、鑄(zhu)鐵管除正三(san)角(jiao)還有Y三(san)通(tong)(tong)(tong)（斜(xie)三(san)通(tong)(tong)(tong)）、TY三(san)通(tong)(tong)(tong)。正三(san)通(tong)(tong)(tong)與鍍鋅配件的(de)三(san)通(tong)(tong)(tong)叫法一樣，只是(shi)(shi)鍍鋅三(san)通(tong)(tong)(tong)是(shi)(shi)絲(si)扣(kou)連接，而(er)這(zhe)里正三(san)通(tong)(tong)(tong)是(shi)(shi)溝槽式連接，每(mei)個管道的(de)平口端環形溝槽由專門的(de)滾槽機加(jia)工成型，與管道連接需要3副相應規格卡箍才能(neng)完成一個接頭，適(shi)合主干管的(de)連接。

至于(yu)機械(xie)三(san)(san)(san)通(tong)(tong)主(zhu)管(guan)(guan)(guan)(guan)上只(zhi)需(xu)用開孔機開孔無需(xu)開槽(cao)，而(er)(er)支(zhi)(zhi)管(guan)(guan)(guan)(guan)或(huo)開槽(cao)（溝槽(cao)式(shi)連(lian)(lian)接(jie)(jie)(jie)(jie)）或(huo)套絲（螺紋式(shi)連(lian)(lian)接(jie)(jie)(jie)(jie)），適合主(zhu)支(zhi)(zhi)管(guan)(guan)(guan)(guan)間(jian)的(de)(de)連(lian)(lian)接(jie)(jie)(jie)(jie)（如噴淋系統的(de)(de)噴淋支(zhi)(zhi)管(guan)(guan)(guan)(guan)）。另外還有一(yi)種(zhong)小機械(xie)三(san)(san)(san)通(tong)(tong)，只(zhi)是把卡箍換成(cheng)了U型(xing)卡，這種(zhong)小機械(xie)三(san)(san)(san)通(tong)(tong)與支(zhi)(zhi)管(guan)(guan)(guan)(guan)連(lian)(lian)接(jie)(jie)(jie)(jie)還是以螺紋連(lian)(lian)接(jie)(jie)(jie)(jie)為主(zhu)，可(ke)能沒有溝槽(cao)連(lian)(lian)接(jie)(jie)(jie)(jie)形式(shi)。正三(san)(san)(san)通(tong)(tong)一(yi)般指三(san)(san)(san)個(ge)接(jie)(jie)(jie)(jie)管(guan)(guan)(guan)(guan)直(zhi)徑相同而(er)(er)異徑三(san)(san)(san)通(tong)(tong)則三(san)(san)(san)個(ge)接(jie)(jie)(jie)(jie)管(guan)(guan)(guan)(guan)直(zhi)徑不(bu)完全相同。正三(san)(san)(san)通(tong)(tong)用于(yu)同一(yi)直(zhi)徑管(guan)(guan)(guan)(guan)道連(lian)(lian)接(jie)(jie)(jie)(jie)之用，異徑三(san)(san)(san)通(tong)(tong)則用于(yu)不(bu)同直(zhi)徑管(guan)(guan)(guan)(guan)道的(de)(de)連(lian)(lian)接(jie)(jie)(jie)(jie)。機械(xie)三(san)(san)(san)通(tong)(tong)連(lian)(lian)接(jie)(jie)(jie)(jie)的(de)(de)支(zhi)(zhi)管(guan)(guan)(guan)(guan)直(zhi)徑絕不(bu)可(ke)能等于(yu)主(zhu)管(guan)(guan)(guan)(guan)直(zhi)徑。