【機械三(san)通】什(shen)么是(shi)機械三(san)通 機械三(san)通和(he)溝(gou)槽(cao)三(san)通有什(shen)么區別
機械三通
機械三通與普通三通作用(yong)一致。機械(xie)(xie)三通分為溝槽(cao)機械(xie)(xie)三通和(he)螺紋(wen)機械(xie)(xie)三通。它可用(yong)于直(zhi)接在鋼管(guan)上接出支管(guan),在消防管(guan)道及噴淋(lin)管(guan)道的安(an)裝上有較多(duo)應用(yong)。在需要分流或合流的時(shi)候可以采用(yong)機械(xie)(xie)三通。
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)先在鋼管上用開孔(kong)(kong)(kong)機(ji)(ji)開孔(kong)(kong)(kong),然后(hou)將機(ji)(ji)械三(san)通(tong)卡入孔(kong)(kong)(kong)洞,孔(kong)(kong)(kong)四周由密封圈沿(yan)管壁密封。機(ji)(ji)械三(san)通(tong)分絲接(jie)和溝槽式(shi)兩種。機(ji)(ji)械三(san)通(tong)連接(jie)時,應檢查機(ji)(ji)械三(san)通(tong)與孔(kong)(kong)(kong)洞的間隙,各部位應均勻,然后(hou)再緊固(gu)到位;機(ji)(ji)械三(san)通(tong)開孔(kong)(kong)(kong)間距不(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在鋼管上(shang)接出(chu)支(zhi)管。
2、首(shou)先(xian)在鋼管上(shang)用開(kai)(kai)孔(kong)(kong)(kong)機開(kai)(kai)孔(kong)(kong)(kong),然后將機械(xie)三通卡(ka)入(ru)孔(kong)(kong)(kong)洞,孔(kong)(kong)(kong)四周由密封(feng)圈沿管壁密封(feng)。機械(xie)三通分絲接和溝槽式兩種。
3、正三通(tong)指支管與主管成90度(du)的三通(tong)。
4、溝槽式連接方(fang)式廣泛用于建筑內的消火栓系統與噴淋系統。
支(zhi)(zhi)管接(jie)頭(tou)是指在直(zhi)管管道中(zhong)部開孔(kong)后連(lian)接(jie)支(zhi)(zhi)管的鞍形(xing)拼合式(shi)(shi)連(lian)接(jie)件,分為(wei)機(ji)(ji)械三通(tong)(tong)和(he)機(ji)(ji)械四(si)通(tong)(tong)兩(liang)種類(lei)型。在設計(ji)圖紙上(shang)一般不會標注出溝槽(cao)三通(tong)(tong)和(he)機(ji)(ji)械三通(tong)(tong)的。機(ji)(ji)械三通(tong)(tong)或(huo)機(ji)(ji)械四(si)通(tong)(tong)與(yu)支(zhi)(zhi)管的連(lian)接(jie)方(fang)式(shi)(shi)有(you)溝槽(cao)式(shi)(shi)連(lian)接(jie)和(he)螺紋(wen)式(shi)(shi)連(lian)接(jie)兩(liang)種,當(dang)支(zhi)(zhi)管道小于(yu)DN50,且主管道直(zhi)徑(jing)大于(yu)分支(zhi)(zhi)直(zhi)徑(jing)2倍時可用(yong)機(ji)(ji)械三通(tong)(tong)(直(zhi)接(jie)在主管道上(shang)開孔(kong),噴淋支(zhi)(zhi)管與(yu)主管連(lian)接(jie)用(yong)得(de)多),其它情況得(de)用(yong)溝槽(cao)三通(tong)(tong)。
這里(li)的(de)溝槽(cao)三(san)通(tong)就是正三(san)通(tong)(主支管(guan)中(zhong)心線(xian)成(cheng)直角),因(yin)為不像UPVC管(guan)、鑄鐵管(guan)除正三(san)角還有(you)Y三(san)通(tong)(斜三(san)通(tong))、TY三(san)通(tong)。正三(san)通(tong)與鍍鋅(xin)配件的(de)三(san)通(tong)叫法一(yi)樣,只是鍍鋅(xin)三(san)通(tong)是絲(si)扣(kou)連(lian)接(jie),而(er)這里(li)正三(san)通(tong)是溝槽(cao)式連(lian)接(jie),每個(ge)管(guan)道的(de)平口端環形溝槽(cao)由專門的(de)滾(gun)槽(cao)機加工(gong)成(cheng)型(xing),與管(guan)道連(lian)接(jie)需要3副相應規格卡箍才能完成(cheng)一(yi)個(ge)接(jie)頭,適合主干管(guan)的(de)連(lian)接(jie)。
至于(yu)(yu)機(ji)(ji)械(xie)三(san)(san)通(tong)主管(guan)(guan)上(shang)只需(xu)用(yong)開(kai)孔機(ji)(ji)開(kai)孔無需(xu)開(kai)槽(cao),而(er)支(zhi)管(guan)(guan)或開(kai)槽(cao)(溝槽(cao)式連(lian)接(jie)(jie))或套絲(si)(螺紋式連(lian)接(jie)(jie)),適合(he)主支(zhi)管(guan)(guan)間(jian)的(de)(de)(de)連(lian)接(jie)(jie)(如噴(pen)淋(lin)系(xi)統的(de)(de)(de)噴(pen)淋(lin)支(zhi)管(guan)(guan))。另外還有一(yi)種小機(ji)(ji)械(xie)三(san)(san)通(tong),只是把卡箍換成了U型卡,這種小機(ji)(ji)械(xie)三(san)(san)通(tong)與支(zhi)管(guan)(guan)連(lian)接(jie)(jie)還是以螺紋連(lian)接(jie)(jie)為主,可(ke)能(neng)沒有溝槽(cao)連(lian)接(jie)(jie)形式。正三(san)(san)通(tong)一(yi)般指三(san)(san)個(ge)接(jie)(jie)管(guan)(guan)直(zhi)(zhi)徑(jing)(jing)相(xiang)同而(er)異徑(jing)(jing)三(san)(san)通(tong)則(ze)三(san)(san)個(ge)接(jie)(jie)管(guan)(guan)直(zhi)(zhi)徑(jing)(jing)不完(wan)全相(xiang)同。正三(san)(san)通(tong)用(yong)于(yu)(yu)同一(yi)直(zhi)(zhi)徑(jing)(jing)管(guan)(guan)道連(lian)接(jie)(jie)之用(yong),異徑(jing)(jing)三(san)(san)通(tong)則(ze)用(yong)于(yu)(yu)不同直(zhi)(zhi)徑(jing)(jing)管(guan)(guan)道的(de)(de)(de)連(lian)接(jie)(jie)。機(ji)(ji)械(xie)三(san)(san)通(tong)連(lian)接(jie)(jie)的(de)(de)(de)支(zhi)管(guan)(guan)直(zhi)(zhi)徑(jing)(jing)絕不可(ke)能(neng)等于(yu)(yu)主管(guan)(guan)直(zhi)(zhi)徑(jing)(jing)。