PE202532405063759011012516018020022525028031535540045050056063071080090010001200 mmPE 管口径都是指外径，对应压力等级的不同，管材的壁厚也就各不相同。

mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">聚乙烯PE mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">管的试压标准

mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">一、水压试验的一般规定：

1 mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: 宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin">、PE mso-fareast-font-family:宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family: Calibri;mso-hansi-theme-font:minor-latin">管道试压前应进行充水浸泡，时间不少于12h mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">。

2 mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: 宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin">、水压试验的静水压力不应小于管道工作压力的1.5 mso-fareast-font-family:宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family: Calibri;mso-hansi-theme-font:minor-latin">倍，且试验压力不应低于0.80MPa mso-fareast-font-family:宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family: Calibri;mso-hansi-theme-font:minor-latin">，不得气压试验代替水压试验。

3 mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: 宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin">、水压试验的长度不宜大于1000 mso-fareast-font-family:宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family: Calibri;mso-hansi-theme-font:minor-latin">米，对中间设有附件的管段，水压试验分段长度不宜大于500 mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">米。系统中有不同材质的管道应分别进行试压。

4 mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: 宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin">、对试压管段端头支撑挡板应进行牢固性和可靠性检查，试压时，其支撑设施严禁松动崩脱。不得将阀门作为封板。

5 mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: 宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin">、加压宜采用带计量装置的机械设备，当采用弹簧压力表时，其精度不应低于1.5 mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">级，量程范围宜为试验压力1.3-1.5 Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">倍，表盘直径不应小于150mm mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">。

6 mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: 宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin">、试压管段不得包括水锤消除器，室外消火栓等管道附件系统包含的各类阀门，应处于全开状态。

mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">二、水压试验的方法：分为预试验阶段与主试验阶段。

1 mso-ascii-font-family:Calibri;mso-ascii-theme-font:minor-latin;mso-fareast-font-family: 宋体;mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin">、预试验阶段，应按如下步骤，并符合下列规定：

mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">（1 mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">）将试压PE mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">管道内的压力降至大气压，并持续60min mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">。期间应确保空气不进入管道。

mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">（2 mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">）缓慢地将管道升压至试验压力并稳压30min mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">，期间如有压力下降可注水补压，但不得高于试验压力。检查管道接口、配件等处有无渗漏现象。当有渗漏现象时应中止试压，并应查明原因采取相应措施后再重新组织试压。

mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">（3 mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">）停止注水补压并稳定60min mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">。若60min mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">后压力下降至试验压力的70 mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">％以上，则预试验阶段的工作结束。当60min mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">后压力下降至试验压力的70 mso-ascii-theme-font:minor-latin;mso-fareast-font-family:宋体;mso-fareast-theme-font: minor-fareast;mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin">％以下，应停止试压，并应查明原因采取相应措施后再组织试压。