管(guan)材(cai)(cai)管(guan)件(jian)的水(shui)密性(xing)試(shi)驗(yan)(yan)(yan)的測試(shi)壓(ya)力(li)(li)，不(bu)超過管(guan)材(cai)(cai)壓(ya)力(li)(li)等級，或(huo)者是系統中(zhong)最低(di)(di)(di)壓(ya)力(li)(li)等級配件(jian)的1.5倍(bei)。當管(guan)道壓(ya)力(li)(li)達(da)到(dao)(dao)試(shi)驗(yan)(yan)(yan)壓(ya)力(li)(li)后(hou)，應保持(chi)一(yi)定時(shi)(shi)間使管(guan)道內試(shi)驗(yan)(yan)(yan)介(jie)質溫(wen)(wen)度(du)(du)與管(guan)道環境溫(wen)(wen)度(du)(du)達(da)到(dao)(dao)一(yi)致，待溫(wen)(wen)度(du)(du)、壓(ya)力(li)(li)均(jun)穩(wen)定后(hou)開始(shi)計時(shi)(shi)。在一(yi)般(ban)情況下，水(shui)密性(xing)試(shi)驗(yan)(yan)(yan)應穩(wen)壓(ya)24小時(shi)(shi)，試(shi)驗(yan)(yan)(yan)結束后(hou)，如果沒有明顯的泄露(lu)或(huo)壓(ya)力(li)(li)降，則為通(tong)過試(shi)驗(yan)(yan)(yan)。PE管(guan)材(cai)(cai)管(guan)件(jian)因(yin)綜合(he)造價(jia)低(di)(di)(di)、施工(gong)方便(bian)、水(shui)力(li)(li)條件(jian)好、無毒、耐(nai)腐蝕、耐(nai)低(di)(di)(di)溫(wen)(wen)及抗機(ji)械振動等優點(dian)，而成為給水(shui)工(gong)程較為理想的管(guan)材(cai)(cai)。