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class="p14-infocontent-1-sour"> <span> 作者：admin </span> <span> 編輯：admin </span> <span> 來源：未知 </span> <span> 2023-02-01 14:23 </span> </div> <div id="5sbsdi8m6l" class="p14-infocontent-1-desc endit-content"><p> <div> pvc塑料通風(fēng)管規(guī)劃要求及鋪設(shè)施工的注意事項</div> <div> </div> <div> <a href="http://m.58812.cn/"><strong>pvc塑料通風(fēng)管</strong></a>材檢查井不能帶水澆注墊層和根底，要確保根底的幾許尺寸和高,符合規(guī)劃要求，待混凝土達(dá)到必定強度才能砌磚，嚴(yán)格控制pvc塑料通風(fēng)管材檢查井井墻的砌筑質(zhì)量。塑料管道裝置時，應(yīng)考慮到環(huán)境對裝置質(zhì)量的影響，一般氣溫高于4O℃，或低于0℃時，不宜施工裝置。井壁必須豎直，不得有增強聚丙烯管通縫；灰漿要飽滿，砌縫要平坦；抹面要壓光，不得有空鼓、裂縫等現(xiàn)象。</div> <div> pvc塑料通風(fēng)管材檢查井流槽的做法要標(biāo)準(zhǔn)。雨水流槽高度應(yīng)與主管的半徑相平，流槽的形狀應(yīng)為與主管半徑相同的半圓弧。由于塑料管道線膨脹系數(shù)***，一般為鋼材8倍左右。在裝置時要考慮熱補償，一般以自然補償為主．也可選用聚四氟乙烯補償器，也可選用聚四氟乙烯波紋膨脹節(jié)進(jìn)行補償。關(guān)于架空專用敷設(shè)的管道應(yīng)選用管托支承，管托可用有角鋼，對剖的鋼管資料，使管道在管托上能自由彈性，管線支架間隔有規(guī)定要求。</div> <div> <img alt="pvc塑料通風(fēng)管" src="/uploads/allimg/230201/1-230201142343122.jpg" style="width: 500px; height: 375px;" /></div> <div> </div> <div> </div> <div> 關(guān)于埋地敷設(shè)的管道，一般沉沒深度為0.7m以下，并要不受地面交通形響，所挖的管溝應(yīng)平坦，溝底及兩邊的石塊、碎磚、玻璃等堅硬物清除潔凈，復(fù)土運用高質(zhì)量的回填土，將管子周圍填土密實，不該滲有碎石。pvc塑料通風(fēng)管應(yīng)水平堆放在平坦的地上，應(yīng)防止彎曲管材，堆置高度不得超過1.5m，管件應(yīng)逐層碼堆，不宜疊得過高管材和管件應(yīng)放在通風(fēng)******的庫房或簡易棚內(nèi)，不得露天存放，防止陽光直射，注意防火安全，間隔熱源不得小于1m。</div> <div> 在轉(zhuǎn)移<strong>pvc塑料通風(fēng)管</strong>材和管件時，應(yīng)小心輕放，防止油污，禁止劇烈碰擊，禁止與尖銳物品碰觸和拋、摔、滾、拖。施工裝置時應(yīng)符合冷、熱水管壓力等級和運用條件。不得有軸向扭曲，穿墻或穿樓板時，不宜強制校正。在進(jìn)行管道標(biāo)記時標(biāo)志應(yīng)面向外側(cè)，處于顯眼的位置。pvc塑料通風(fēng)管選用金屬管卡和吊架時，金屬管卡與管道之間應(yīng)選用塑料帶或橡膠等軟物隔墊。在金屬管件與新式塑料管銜接部位，管卡應(yīng)設(shè)在金屬管件一端。</div> <br></div> <div id="5sbsdi8m6l" class="clear"></div> </div> <div id="5sbsdi8m6l" class="p14-info-3 blk"> <div id="5sbsdi8m6l" class="p14-info-3-tit"> </div> <div id="5sbsdi8m6l" class="p14-info-3-list"> </div> </div> <div id="5sbsdi8m6l" class="p14-pagination-1 blk"> <dl> <dd> <b><em>上一篇：<a href='http://m.58812.cn/hyzx/hy/584.html'>實驗室阻燃pps風(fēng)管在不同環(huán)境中的效果及銜接方</a> </em></b> 下一篇：<a 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