球阀在安装前后要注意什么因素

球阀设备前的预备
(1) 球阀(电动球阀)前后管线已预备好。前后管道应同轴,两法兰密封面应平行。管道应能接受球阀的分量,不然管道上有必要配有恰当的支撑。 
(2) 把阀前后管线吹扫洁净,铲除去管道内的油污、焊渣和全部其它杂质。
(3) 核对球阀的象征,查明球阀完好无缺。将阀全开全闭数次证明其作业正常。
(4) 拆去球阀两头衔接法兰上的维护件。 
(5) 查看阀孔铲除能够有的污物,然后清洁阀孔。阀(电动球阀)座与球之间即便仅有细小颗粒的异物也能够会损伤阀座密封面。
球阀的设备
(1) 把阀装上管线。阀的任何一端都可装在上游端。用手柄驱动的阀可设备在管道上的恣意方位。但带有齿轮箱或气动驱动器的球阀(电动球阀)应直立设备,即设备在水平管道上,且驱动设备处于管道上方。
(2) 阀法兰与管线法兰间按管路描绘需求装上密封垫。 
(3) 法兰上的螺栓需对称、逐次、均匀拧紧。 
(4) 衔接气动管线(选用气动驱动器时)。
球阀设备后的查看
(1) 操作驱动器启、闭球阀数次,应灵敏无滞涩,证明其作业正常。 
(2) 按管路描绘需求对管道与球阀间的法兰联系面进行密封功能查看。
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