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

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機械三通

機械三通與普通三通作(zuo)用(yong)(yong)一致。機(ji)(ji)械三(san)通(tong)分為溝槽機(ji)(ji)械三(san)通(tong)和(he)螺紋機(ji)(ji)械三(san)通(tong)。它(ta)可(ke)用(yong)(yong)于直(zhi)接在(zai)鋼管(guan)(guan)上接出支管(guan)(guan)，在(zai)消(xiao)防管(guan)(guan)道及(ji)噴(pen)淋管(guan)(guan)道的(de)安裝上有(you)較多(duo)應用(yong)(yong)。在(zai)需要分流(liu)或合流(liu)的(de)時候可(ke)以采用(yong)(yong)機(ji)(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。首先在鋼(gang)管(guan)上用開孔(kong)機開孔(kong)，然(ran)后將(jiang)機械(xie)三(san)(san)通卡(ka)入(ru)孔(kong)洞，孔(kong)四周由密(mi)封圈(quan)沿(yan)管(guan)壁密(mi)封。機械(xie)三(san)(san)通分絲(si)接和溝槽式兩種。機械(xie)三(san)(san)通連接時，應檢(jian)查(cha)機械(xie)三(san)(san)通與孔(kong)洞的間隙，各部位(wei)應均勻，然(ran)后再緊(jin)固到位(wei)；機械(xie)三(san)(san)通開孔(kong)間距(ju)不(bu)應小(xiao)于1m。

機械三通與溝槽三通區別

1、機械三通可用于直接(jie)在鋼管上接(jie)出支管。

2、首先在鋼管上用開孔機(ji)開孔，然(ran)后(hou)將機(ji)械三通卡入(ru)孔洞，孔四周由密封圈沿(yan)管壁密封。機(ji)械三通分絲接和溝槽式兩(liang)種。

3、正三通(tong)指支(zhi)管(guan)與主(zhu)管(guan)成90度的三通(tong)。

4、溝槽式連接方式廣泛(fan)用于建筑內(nei)的消火栓系統(tong)與噴(pen)淋(lin)系統(tong)。

支(zhi)(zhi)管(guan)(guan)(guan)接(jie)頭(tou)是指在(zai)直管(guan)(guan)(guan)管(guan)(guan)(guan)道中(zhong)部開(kai)孔后連(lian)接(jie)支(zhi)(zhi)管(guan)(guan)(guan)的鞍形拼合式連(lian)接(jie)件，分為機(ji)械(xie)(xie)三通(tong)和(he)(he)機(ji)械(xie)(xie)四通(tong)兩種類型。在(zai)設計圖紙(zhi)上一般不會(hui)標注出(chu)溝(gou)槽(cao)三通(tong)和(he)(he)機(ji)械(xie)(xie)三通(tong)的。機(ji)械(xie)(xie)三通(tong)或機(ji)械(xie)(xie)四通(tong)與支(zhi)(zhi)管(guan)(guan)(guan)的連(lian)接(jie)方式有(you)溝(gou)槽(cao)式連(lian)接(jie)和(he)(he)螺紋式連(lian)接(jie)兩種，當支(zhi)(zhi)管(guan)(guan)(guan)道小于DN50，且(qie)主管(guan)(guan)(guan)道直徑大于分支(zhi)(zhi)直徑2倍(bei)時可用(yong)機(ji)械(xie)(xie)三通(tong)（直接(jie)在(zai)主管(guan)(guan)(guan)道上開(kai)孔，噴(pen)淋支(zhi)(zhi)管(guan)(guan)(guan)與主管(guan)(guan)(guan)連(lian)接(jie)用(yong)得(de)多），其它情況得(de)用(yong)溝(gou)槽(cao)三通(tong)。

這里(li)的(de)溝槽(cao)三(san)通(tong)(tong)就是正三(san)通(tong)(tong)（主支管(guan)(guan)中心(xin)線成(cheng)(cheng)直角），因為(wei)不像UPVC管(guan)(guan)、鑄鐵管(guan)(guan)除正三(san)角還有Y三(san)通(tong)(tong)（斜三(san)通(tong)(tong)）、TY三(san)通(tong)(tong)。正三(san)通(tong)(tong)與鍍(du)鋅(xin)配件的(de)三(san)通(tong)(tong)叫法一(yi)樣，只(zhi)是鍍(du)鋅(xin)三(san)通(tong)(tong)是絲扣連(lian)接(jie)，而這里(li)正三(san)通(tong)(tong)是溝槽(cao)式連(lian)接(jie)，每個管(guan)(guan)道(dao)的(de)平口(kou)端環(huan)形溝槽(cao)由專門的(de)滾槽(cao)機(ji)加工成(cheng)(cheng)型(xing)，與管(guan)(guan)道(dao)連(lian)接(jie)需要3副相(xiang)應規格卡箍才(cai)能完成(cheng)(cheng)一(yi)個接(jie)頭，適合主干管(guan)(guan)的(de)連(lian)接(jie)。

至于機械三(san)(san)(san)通(tong)(tong)(tong)主(zhu)管(guan)(guan)(guan)上只(zhi)需(xu)用(yong)開(kai)孔機開(kai)孔無需(xu)開(kai)槽(cao)，而支(zhi)管(guan)(guan)(guan)或開(kai)槽(cao)（溝槽(cao)式連(lian)(lian)接(jie)(jie)(jie)）或套絲（螺紋式連(lian)(lian)接(jie)(jie)(jie)），適合主(zhu)支(zhi)管(guan)(guan)(guan)間的連(lian)(lian)接(jie)(jie)(jie)（如噴(pen)淋系統的噴(pen)淋支(zhi)管(guan)(guan)(guan)）。另外還有一(yi)種小機械三(san)(san)(san)通(tong)(tong)(tong)，只(zhi)是(shi)把卡箍換成了(le)U型(xing)卡，這種小機械三(san)(san)(san)通(tong)(tong)(tong)與支(zhi)管(guan)(guan)(guan)連(lian)(lian)接(jie)(jie)(jie)還是(shi)以(yi)螺紋連(lian)(lian)接(jie)(jie)(jie)為(wei)主(zhu)，可能(neng)沒有溝槽(cao)連(lian)(lian)接(jie)(jie)(jie)形(xing)式。正三(san)(san)(san)通(tong)(tong)(tong)一(yi)般(ban)指(zhi)三(san)(san)(san)個接(jie)(jie)(jie)管(guan)(guan)(guan)直(zhi)(zhi)(zhi)徑(jing)(jing)相同(tong)而異徑(jing)(jing)三(san)(san)(san)通(tong)(tong)(tong)則三(san)(san)(san)個接(jie)(jie)(jie)管(guan)(guan)(guan)直(zhi)(zhi)(zhi)徑(jing)(jing)不(bu)完全相同(tong)。正三(san)(san)(san)通(tong)(tong)(tong)用(yong)于同(tong)一(yi)直(zhi)(zhi)(zhi)徑(jing)(jing)管(guan)(guan)(guan)道(dao)(dao)連(lian)(lian)接(jie)(jie)(jie)之用(yong)，異徑(jing)(jing)三(san)(san)(san)通(tong)(tong)(tong)則用(yong)于不(bu)同(tong)直(zhi)(zhi)(zhi)徑(jing)(jing)管(guan)(guan)(guan)道(dao)(dao)的連(lian)(lian)接(jie)(jie)(jie)。機械三(san)(san)(san)通(tong)(tong)(tong)連(lian)(lian)接(jie)(jie)(jie)的支(zhi)管(guan)(guan)(guan)直(zhi)(zhi)(zhi)徑(jing)(jing)絕(jue)不(bu)可能(neng)等于主(zhu)管(guan)(guan)(guan)直(zhi)(zhi)(zhi)徑(jing)(jing)。