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管道阀门的选用与安装要怎么做？

管道阀门的选用与安装要怎么做？

浏览：40次 | 提问时间： 07-03 04:15

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没有人能挽回时间的狂流 07-03 04:16

1、流体的工况(压力及温度)
2、流体的性质(腐蚀性等)
3、选用阀门的目的(节流、控压等)
旋塞阀、闸阀、截止阀、球阀—用于开启或关闭管道的介质流动。
止回阀(包括底阀)—用于自动防止管道内的介质倒流。
节流阀—用于调节管道介质的流量。
蝶阀—用于开启或关闭管道内的介质。也可作调节用。
安全阀—用于锅炉、容器设备及管道上，当介质压力超过规定数值时，能自动排除过剩介质压力，保证生产运行安全。
减压阀—用于自动降低管道及设备内介质压力。系使介质经过阀瓣的间隙时，产生阻力造成压力损失，达到减压目的。
疏水器—用于蒸汽管道上自动排除冷凝水，防止蒸汽损失或泄漏。
V型球阀—用于对介质流量进行调节，流量特性为等百分比。

心照不宣死得快你不是你 07-03 04:24

这要看要求，比如:球阀是所有阀门中，流量阻力最小的，也是最方便清洗的，价格也可以说是最贵的。同口径的阀门当中，球阀和蝶阀安装高度最矮小，开启速度最快的。球阀适合各种不同高中压的工况下，蝶阀只能用在低压下。

仍旧是你 07-03 04:32

消防水箱的设计在规范中都说有规格。而且图纸中也会有。具体压力的计算，看设计手册。供水管道50，怎么可能接到消防管道上面。就算是室外消火栓直接在市政(小区)给水管上面接，那个市政(小区)给水管最少也是150的。对于是否需要消防泵，还要看你的建筑的性质。如果不需要，那就引用市政给水管，并满足两根进水管。每个泵的参数都不一致，具体可以询问厂家。而且消防用的口径，好像最少也80。
希望我的回答对您有所帮助。

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