【機械三通】什么是(shi)機械三通 機械三通和溝槽三通有(you)什么區別

該圖片由注冊用戶"八度空間"提供，版權聲明反饋

機械三通

機械三通與普通三通作用(yong)一致。機械(xie)三(san)(san)通(tong)(tong)(tong)分為溝槽機械(xie)三(san)(san)通(tong)(tong)(tong)和螺紋機械(xie)三(san)(san)通(tong)(tong)(tong)。它可(ke)用(yong)于直(zhi)接(jie)在(zai)(zai)鋼(gang)管(guan)(guan)上接(jie)出支管(guan)(guan)，在(zai)(zai)消防(fang)管(guan)(guan)道及(ji)噴淋管(guan)(guan)道的安裝上有較(jiao)多應用(yong)。在(zai)(zai)需要分流或合流的時候可(ke)以采用(yong)機械(xie)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)在鋼管(guan)上用開(kai)孔機(ji)(ji)開(kai)孔，然后(hou)將機(ji)(ji)械(xie)(xie)三通(tong)(tong)卡入(ru)孔洞，孔四周由密(mi)封(feng)圈沿(yan)管(guan)壁密(mi)封(feng)。機(ji)(ji)械(xie)(xie)三通(tong)(tong)分(fen)絲接(jie)和(he)溝槽式(shi)兩種。機(ji)(ji)械(xie)(xie)三通(tong)(tong)連(lian)接(jie)時，應檢查機(ji)(ji)械(xie)(xie)三通(tong)(tong)與(yu)孔洞的間隙，各部(bu)位應均勻(yun)，然后(hou)再緊固到位；機(ji)(ji)械(xie)(xie)三通(tong)(tong)開(kai)孔間距不應小于(yu)1m。

機械三通與溝槽三通區別

1、機(ji)械(xie)三通可(ke)用于直接在鋼管(guan)上接出支管(guan)。

2、首(shou)先(xian)在鋼管(guan)上(shang)用開孔機(ji)開孔，然(ran)后將機(ji)械三通(tong)卡入(ru)孔洞(dong)，孔四(si)周由密封圈沿管(guan)壁密封。機(ji)械三通(tong)分絲接和溝槽式兩種。

3、正三通(tong)指支管與主管成90度的三通(tong)。

4、溝槽式連接(jie)方式廣泛用(yong)于建(jian)筑內的消火(huo)栓系(xi)統(tong)與(yu)噴(pen)淋系(xi)統(tong)。

支(zhi)(zhi)管接(jie)(jie)頭(tou)是指在直(zhi)管管道(dao)(dao)中部開孔后連(lian)(lian)接(jie)(jie)支(zhi)(zhi)管的(de)鞍形(xing)拼合式連(lian)(lian)接(jie)(jie)件(jian)，分為機(ji)(ji)械三(san)(san)(san)通(tong)(tong)和(he)機(ji)(ji)械四通(tong)(tong)兩種類(lei)型。在設計圖紙(zhi)上一般不會標注出溝槽(cao)三(san)(san)(san)通(tong)(tong)和(he)機(ji)(ji)械三(san)(san)(san)通(tong)(tong)的(de)。機(ji)(ji)械三(san)(san)(san)通(tong)(tong)或機(ji)(ji)械四通(tong)(tong)與支(zhi)(zhi)管的(de)連(lian)(lian)接(jie)(jie)方(fang)式有溝槽(cao)式連(lian)(lian)接(jie)(jie)和(he)螺紋式連(lian)(lian)接(jie)(jie)兩種，當支(zhi)(zhi)管道(dao)(dao)小(xiao)于(yu)DN50，且主管道(dao)(dao)直(zhi)徑大于(yu)分支(zhi)(zhi)直(zhi)徑2倍時可用機(ji)(ji)械三(san)(san)(san)通(tong)(tong)（直(zhi)接(jie)(jie)在主管道(dao)(dao)上開孔，噴(pen)淋(lin)支(zhi)(zhi)管與主管連(lian)(lian)接(jie)(jie)用得(de)多(duo)），其它情況得(de)用溝槽(cao)三(san)(san)(san)通(tong)(tong)。

這里的(de)溝(gou)槽三(san)(san)(san)通(tong)就(jiu)是正(zheng)三(san)(san)(san)通(tong)（主支管(guan)中(zhong)心線成直角(jiao)），因為不像UPVC管(guan)、鑄鐵(tie)管(guan)除正(zheng)三(san)(san)(san)角(jiao)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(yu)鍍鋅配件的(de)三(san)(san)(san)通(tong)叫(jiao)法一樣，只是鍍鋅三(san)(san)(san)通(tong)是絲扣連(lian)(lian)接，而這里正(zheng)三(san)(san)(san)通(tong)是溝(gou)槽式連(lian)(lian)接，每(mei)個管(guan)道(dao)的(de)平口端環(huan)形溝(gou)槽由(you)專門的(de)滾槽機加工(gong)成型，與(yu)管(guan)道(dao)連(lian)(lian)接需(xu)要(yao)3副相應規格卡箍才能完(wan)成一個接頭，適合主干管(guan)的(de)連(lian)(lian)接。

至于(yu)機(ji)械(xie)三(san)(san)通(tong)主管(guan)上(shang)只需(xu)用(yong)開孔機(ji)開孔無需(xu)開槽(cao)，而(er)(er)支管(guan)或(huo)開槽(cao)（溝(gou)(gou)槽(cao)式(shi)連(lian)(lian)(lian)接）或(huo)套絲(si)（螺紋式(shi)連(lian)(lian)(lian)接），適合主支管(guan)間的連(lian)(lian)(lian)接（如(ru)噴(pen)淋系統的噴(pen)淋支管(guan)）。另(ling)外還(huan)有一(yi)(yi)種(zhong)小(xiao)機(ji)械(xie)三(san)(san)通(tong)，只是把卡箍換(huan)成了U型卡，這(zhe)種(zhong)小(xiao)機(ji)械(xie)三(san)(san)通(tong)與支管(guan)連(lian)(lian)(lian)接還(huan)是以螺紋連(lian)(lian)(lian)接為主，可能沒有溝(gou)(gou)槽(cao)連(lian)(lian)(lian)接形(xing)式(shi)。正三(san)(san)通(tong)一(yi)(yi)般指三(san)(san)個(ge)接管(guan)直徑(jing)相(xiang)同(tong)而(er)(er)異徑(jing)三(san)(san)通(tong)則三(san)(san)個(ge)接管(guan)直徑(jing)不完全相(xiang)同(tong)。正三(san)(san)通(tong)用(yong)于(yu)同(tong)一(yi)(yi)直徑(jing)管(guan)道(dao)連(lian)(lian)(lian)接之用(yong)，異徑(jing)三(san)(san)通(tong)則用(yong)于(yu)不同(tong)直徑(jing)管(guan)道(dao)的連(lian)(lian)(lian)接。機(ji)械(xie)三(san)(san)通(tong)連(lian)(lian)(lian)接的支管(guan)直徑(jing)絕不可能等于(yu)主管(guan)直徑(jing)。