與管(guan)(guan)(guan)(guan)件(jian)(jian)、管(guan)(guan)(guan)(guan)材與配件(jian)(jian)，以(yi)及聚乙烯管(guan)(guan)(guan)(guan)與金屬管(guan)(guan)(guan)(guan)之間的(de)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)方(fang)式(shi)很多，不(bu)同的(de)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)方(fang)式(shi)都有(you)(you)自(zi)身的(de)優點和局限性(xing)，用(yong)(yong)戶可根(gen)據管(guan)(guan)(guan)(guan)道直(zhi)徑、工作壓力、使用(yong)(yong)場所等環境，選擇合適(shi)的(de)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)方(fang)式(shi)。但是，嚴(yan)禁(jin)以(yi)任何(he)形式(shi)直(zhi)接(jie)(jie)(jie)在聚乙烯管(guan)(guan)(guan)(guan)材、管(guan)(guan)(guan)(guan)件(jian)(jian)上車制(zhi)管(guan)(guan)(guan)(guan)螺紋(wen)，采用(yong)(yong)螺紋(wen)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)；嚴(yan)禁(jin)采用(yong)(yong)明火烘烤聚乙烯管(guan)(guan)(guan)(guan)材、管(guan)(guan)(guan)(guan)件(jian)(jian)，直(zhi)接(jie)(jie)(jie)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)。城鎮供水聚乙烯管(guan)(guan)(guan)(guan)道常用(yong)(yong)的(de)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)方(fang)式(shi)有(you)(you)：熱熔連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)、電熔連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)、承(cheng)插式(shi)柔性(xing)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)、法蘭連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)、鋼塑(su)過(guo)渡(du)接(jie)(jie)(jie)頭連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)等。

1 熱熔連接

熱(re)熔(rong)連(lian)(lian)(lian)接(jie)(jie)是(shi)用專用加熱(re)工具，在(zai)壓力下加熱(re)聚乙(yi)烯(xi)管材或(huo)管件(jian)的待連(lian)(lian)(lian)接(jie)(jie)部位，使(shi)其熔(rong)融后，移走加熱(re)工具，施壓將兩個熔(rong)融面連(lian)(lian)(lian)在(zai)一起，在(zai)穩定的壓力下保持一段(duan)時間，直到接(jie)(jie)頭冷卻。熱(re)熔(rong)連(lian)(lian)(lian)接(jie)(jie)包括熱(re)熔(rong)對接(jie)(jie)連(lian)(lian)(lian)接(jie)(jie)、熱(re)熔(rong)承插(cha)連(lian)(lian)(lian)接(jie)(jie)、熱(re)熔(rong)鞍型(xing)連(lian)(lian)(lian)接(jie)(jie)。

2 電熔連接

電(dian)(dian)熔(rong)(rong)連(lian)(lian)(lian)接(jie)是(shi)用內埋電(dian)(dian)阻絲的(de)(de)專用電(dian)(dian)熔(rong)(rong)管(guan)件與管(guan)材或管(guan)件的(de)(de)連(lian)(lian)(lian)接(jie)部位緊密接(jie)觸(chu)通電(dian)(dian)，通過內埋的(de)(de)電(dian)(dian)阻絲加(jia)熱(re)連(lian)(lian)(lian)接(jie)部位，使其熔(rong)(rong)融(rong)連(lian)(lian)(lian)為一體(ti)，直至接(jie)頭冷卻。電(dian)(dian)熔(rong)(rong)連(lian)(lian)(lian)接(jie)可用于(yu)與不同(tong)類型和不同(tong)熔(rong)(rong)體(ti)流動速率的(de)(de)聚(ju)乙烯管(guan)材或插口管(guan)件連(lian)(lian)(lian)接(jie)。電(dian)(dian)熔(rong)(rong)連(lian)(lian)(lian)接(jie)分為電(dian)(dian)熔(rong)(rong)承插連(lian)(lian)(lian)接(jie)和電(dian)(dian)熔(rong)(rong)鞍(an)型連(lian)(lian)(lian)接(jie)。

3 承插式柔(rou)性連接(jie)

聚(ju)乙(yi)烯管(guan)(guan)道承(cheng)(cheng)插(cha)式(shi)柔(rou)性連接(jie)(jie)是參照(zhao)鑄鐵管(guan)(guan)和聚(ju)氯乙(yi)烯管(guan)(guan)(PVC U)的(de)承(cheng)(cheng)插(cha)式(shi)柔(rou)性連接(jie)(jie)原理開發(fa)的(de)一種新型連接(jie)(jie)方式(shi)，它(ta)是在聚(ju)乙(yi)烯管(guan)(guan)材(cai)一端(duan)焊接(jie)(jie)一個經過加固的(de)聚(ju)乙(yi)烯承(cheng)(cheng)口(kou)。承(cheng)(cheng)插(cha)式(shi)柔(rou)性連接(jie)(jie)是將(jiang)聚(ju)乙(yi)烯管(guan)(guan)材(cai)一端(duan)直接(jie)(jie)插(cha)入管(guan)(guan)材(cai)或管(guan)(guan)件(jian)的(de)特制的(de)承(cheng)(cheng)口(kou)中，通過承(cheng)(cheng)口(kou)內的(de)鎖緊環壓(ya)緊抗拉拔、橡膠(jiao)密封(feng)圈壓(ya)緊密封(feng)，達到連接(jie)(jie)管(guan)(guan)材(cai)和管(guan)(guan)件(jian)的(de)目的(de)。

4 法蘭連接

法(fa)蘭(lan)(lan)連(lian)(lian)接主要用于聚乙烯管道與(yu)(yu)金屬管道或(huo)(huo)閥門(men)、流量計、壓(ya)力(li)表等附屬設備的(de)連(lian)(lian)接。法(fa)蘭(lan)(lan)連(lian)(lian)接主要由聚乙烯法(fa)蘭(lan)(lan)連(lian)(lian)接件、鋼(gang)制或(huo)(huo)鋁制背壓(ya)活套(tao)法(fa)蘭(lan)(lan)、鋼(gang)制或(huo)(huo)鋁制法(fa)蘭(lan)(lan)片(pian)、墊片(pian)或(huo)(huo)密封圈、螺栓、螺母(mu)等組成(cheng)。法(fa)蘭(lan)(lan)連(lian)(lian)接是通過緊固螺栓、螺母(mu)，使法(fa)蘭(lan)(lan)連(lian)(lian)接件與(yu)(yu)法(fa)蘭(lan)(lan)片(pian)緊密接觸，達到連(lian)(lian)接目的(de)。

5 鋼塑(su)過渡(du)接(jie)頭連(lian)接(jie)

鋼(gang)塑過渡(du)接(jie)(jie)頭連接(jie)(jie)是采(cai)用通過冷壓(ya)或(huo)其它方式預制(zhi)的鋼(gang)塑過渡(du)接(jie)(jie)頭來連接(jie)(jie)聚乙(yi)(yi)烯管(guan)道(dao)和(he)金屬管(guan)道(dao)。鋼(gang)塑過渡(du)接(jie)(jie)頭內有抗拉(la)拔(ba)的鎖緊環(huan)和(he)密(mi)封圈(quan)，通常要求其有良好的密(mi)封性能(neng)和(he)抗拉(la)拔(ba)、耐壓(ya)性能(neng)要大(da)于系統中聚乙(yi)(yi)烯管(guan)道(dao)。