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["tagname"] => string(30) "偏心异径管规格有哪些"
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[3] => array(11) {
["tagname"] => string(24) "偏心螺丝安装方法"
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[5] => array(11) {
["tagname"] => string(15) "异径管生产"
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[7] => array(11) {
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[8] => array(11) {
["tagname"] => string(36) "求问家装知能如何安装布线"
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[9] => array(11) {
["tagname"] => string(30) "求问导轨蚊帐什么安装"
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[10] => array(11) {
["tagname"] => string(30) "求问如何制作韩式枕头"
["inlink"] => int(0)
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["id"] => string(7) "1250588"
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["m_pageurl"] => string(34) "//m.sheji456.com/ask/tlist/1250588"
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["tagname"] => string(30) "求问大神家纺如何保养"
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[12] => array(11) {
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["tagname"] => string(30) "求问如何利用衣橱空间"
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10秒装修报价 装修要花多少钱?获得精准报价,省钱30%
168211
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蒸汽管道的变径以管底相平(俗称底平)安装在水平管路上,以便于排除管内冷凝水;热水管道变径以管顶相平(俗称顶平)安装在水平管路上,以利于排除管内空气这是书上的原话,画个图,很容易理解的。
泵房内安装偏心异径管、吸水喇叭口,这几个都是法兰连接的,有的省的定额里面有水泵进出口变径的子目,如果没有就套法兰阀门的定额;防回流污染止回阀,也就是倒流防止器,还有叫防污隔断阀的,你可以看下图集《05S108 倒流防止器安装》中的安装方法,以此来计算工程量,分开套定额;填沙、挖土方或者沟槽,砖砌阀门井,这些在建筑定额里都有很明确的子目;
天然气输送管道在水平方向上要求是平的,所以在水平方向上的异径管必须是偏心的,平底装就是了
要通过异径管才能对接泵进口有异径管,一般是因为系统的管路管径比泵的进出口大。系统管路的管径选择比泵进出口大的目的是为了降低流速,减少水力损失
。。。。
昌茂橡胶接头可以跟偏心异径管一起装,也可以使用昌茂偏心异径橡胶接头,无需偏心异径管。