发布时间:2025-02-03 00:19:46
球墨铸铁给水管试压标准源自国家规范。试压前,管道水压试验分段长度不超过一千米。试验时,管道应满水且无压力状态浸泡,无砂浆内衬浸泡时间不少于24小时,有砂浆内衬则需延长至48小时以上。所有水压试验应在回填前进行,合格后方能回填。回填前还需检查管道接口与管身无破损及渗漏,满足此前提条件才视为合格。
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