分類

按(an)(an)生產(chan)方(fang)法（1）無縫管(guan)(guan)(guan)(guan)(guan)(guan)——熱軋管(guan)(guan)(guan)(guan)(guan)(guan)、冷軋管(guan)(guan)(guan)(guan)(guan)(guan)、冷拔(ba)管(guan)(guan)(guan)(guan)(guan)(guan)、擠壓管(guan)(guan)(guan)(guan)(guan)(guan)、頂管(guan)(guan)(guan)(guan)(guan)(guan)。（2）焊管(guan)(guan)(guan)(guan)(guan)(guan)。（a）按(an)(an)工藝分(fen)——電弧焊管(guan)(guan)(guan)(guan)(guan)(guan)、電阻焊管(guan)(guan)(guan)(guan)(guan)(guan)（高頻、低頻）、氣焊管(guan)(guan)(guan)(guan)(guan)(guan)、爐(lu)焊管(guan)(guan)(guan)(guan)(guan)(guan)。（b）按(an)(an)焊縫分(fen)——直縫焊管(guan)(guan)(guan)(guan)(guan)(guan)、螺旋焊管(guan)(guan)(guan)(guan)(guan)(guan)。按(an)(an)斷面形(xing)(xing)(xing)狀（1）簡(jian)單斷面鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)——圓形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、方(fang)形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、橢圓形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、三角形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、六角形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、菱形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、八(ba)角形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、半圓形(xing)(xing)(xing)鋼(gang)(gang)(gang)圓、其他。（2）復(fu)雜斷面鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)——不等邊六角形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、五(wu)瓣(ban)梅花形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、雙凸形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、雙凹形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、瓜子形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、圓錐(zhui)形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、波紋形(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、表殼鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)等。

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水(shui)壓(ya)試(shi)(shi)(shi)(shi)驗(yan)(yan)1、PE管(guan)(guan)(guan)(guan)(guan)道(dao)試(shi)(shi)(shi)(shi)壓(ya)前應(ying)(ying)(ying)進(jin)(jin)行充水(shui)浸泡，時間不(bu)(bu)(bu)少(shao)(shao)于(yu)12h。2、水(shui)壓(ya)試(shi)(shi)(shi)(shi)驗(yan)(yan)的(de)(de)靜水(shui)壓(ya)力(li)(li)不(bu)(bu)(bu)應(ying)(ying)(ying)小于(yu)管(guan)(guan)(guan)(guan)(guan)道(dao)工(gong)作壓(ya)力(li)(li)的(de)(de)1.5倍(bei)，灌溉(gai)管(guan)(guan)(guan)(guan)(guan)材(cai)廠價，且(qie)試(shi)(shi)(shi)(shi)驗(yan)(yan)壓(ya)力(li)(li)不(bu)(bu)(bu)應(ying)(ying)(ying)低于(yu)0.80MPa，不(bu)(bu)(bu)得(de)氣壓(ya)試(shi)(shi)(shi)(shi)驗(yan)(yan)代(dai)替水(shui)壓(ya)試(shi)(shi)(shi)(shi)驗(yan)(yan)。 [2] 3、水(shui)壓(ya)試(shi)(shi)(shi)(shi)驗(yan)(yan)的(de)(de)長度(du)不(bu)(bu)(bu)宜大于(yu)1000米，對中間設有附件(jian)(jian)的(de)(de)管(guan)(guan)(guan)(guan)(guan)段，水(shui)壓(ya)試(shi)(shi)(shi)(shi)驗(yan)(yan)分段長度(du)不(bu)(bu)(bu)宜大于(yu)500米。系(xi)統中有不(bu)(bu)(bu)同(tong)材(cai)質(zhi)的(de)(de)管(guan)(guan)(guan)(guan)(guan)道(dao)應(ying)(ying)(ying)分別進(jin)(jin)行試(shi)(shi)(shi)(shi)壓(ya)。4、對試(shi)(shi)(shi)(shi)壓(ya)管(guan)(guan)(guan)(guan)(guan)段端頭支撐(cheng)擋板(ban)應(ying)(ying)(ying)進(jin)(jin)行牢固性和可(ke)靠性檢查，試(shi)(shi)(shi)(shi)壓(ya)時，灌溉(gai)管(guan)(guan)(guan)(guan)(guan)材(cai)多少(shao)(shao)錢，其支撐(cheng)設施嚴禁松(song)動崩脫。不(bu)(bu)(bu)得(de)將閥門作為(wei)封板(ban)。5、加壓(ya)宜采用帶(dai)計量(liang)裝(zhuang)置的(de)(de)機械設備，當(dang)采用彈簧(huang)壓(ya)力(li)(li)表(biao)時，其精(jing)度(du)不(bu)(bu)(bu)應(ying)(ying)(ying)低于(yu)1.5級，灌溉(gai)管(guan)(guan)(guan)(guan)(guan)材(cai)采購，量(liang)程范(fan)圍宜為(wei)試(shi)(shi)(shi)(shi)驗(yan)(yan)壓(ya)力(li)(li)1.3-1.5倍(bei)，表(biao)盤直徑不(bu)(bu)(bu)應(ying)(ying)(ying)小于(yu)150mm。6、試(shi)(shi)(shi)(shi)壓(ya)管(guan)(guan)(guan)(guan)(guan)段不(bu)(bu)(bu)得(de)包括水(shui)錘消除器，室外(wai)消火栓等管(guan)(guan)(guan)(guan)(guan)道(dao)附件(jian)(jian)系(xi)統包含的(de)(de)各類閥門，應(ying)(ying)(ying)處于(yu)全開(kai)狀態。

管(guan)(guan)(guan)(guan)道的(de)(de)連接(jie)(jie)：■ 電熱熔接(jie)(jie)性：采用(yong)電熱熔焊機將直(zhi)管(guan)(guan)(guan)(guan)與直(zhi)管(guan)(guan)(guan)(guan)、直(zhi)管(guan)(guan)(guan)(guan)與管(guan)(guan)(guan)(guan)件連接(jie)(jie)起來。一(yi)般(ban)多用(yong)于(yu)160mm以下(xia)管(guan)(guan)(guan)(guan)。■ 熱熔對(dui)接(jie)(jie)連接(jie)(jie)：采用(yong)的(de)(de)對(dui)接(jie)(jie)焊機管(guan)(guan)(guan)(guan)道連接(jie)(jie)起來，一(yi)般(ban)多用(yong)于(yu)160mm以上管(guan)(guan)(guan)(guan)。■ 鋼塑連接(jie)(jie)：可(ke)采用(yong)法蘭、螺紋絲扣等(deng)方(fang)(fang)法連接(jie)(jie)。■ 為方(fang)(fang)便施(shi)(shi)工(gong)(gong)(gong)和保(bao)證(zheng)施(shi)(shi)工(gong)(gong)(gong)質量、還應準備相應的(de)(de)工(gong)(gong)(gong)具(ju)。如：旋(xuan)轉切(qie)刀(dao)(dao)一(yi)切(qie)割管(guan)(guan)(guan)(guan)材(cai)；旋(xuan)轉刀(dao)(dao)--刮除管(guan)(guan)(guan)(guan)子(zi)表(biao)面(mian)的(de)(de)氧化皮；爬壁刀(dao)(dao)--刮除大口徑管(guan)(guan)(guan)(guan)子(zi)表(biao)面(mian)的(de)(de)化皮；斷(duan)氣(qi)(qi)工(gong)(gong)(gong)具(ju)--實(shi)現斷(duan)氣(qi)(qi)現場操(cao)作。