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聚氨酯发泡保温管与法兰怎样衔接

来源:http://www.sdhpgy.com 日期:2019-01-01 发布人:admin
聚氨酯发泡保温管与法兰怎样衔接
How to Connect Polyurethane Foamed Insulation Pipe with Flange
法兰处的装置是保证聚氨酯发泡保温管的正常运用的重要一环,一定要服从原则装置、箍紧法兰。
Flange device is an important part to ensure the normal operation of polyurethane foamed insulation pipe. It must obey the principle of device and tighten the flange.
1、首先法兰装置前,该当检验型号及材质能否契合要求,法兰密封面及密封垫不能有缺陷。
1. Before the first flange device, the flange sealing surface and gasket should not be defective when the type and material are checked to meet the requirements.
2、法兰衔接时维持平行,不能有螺栓强紧的办法消弭法兰倾斜,如此会形成法兰盘受力过大形成分裂,发生阀门处渗漏。
2. Flange connection should be kept parallel. There should be no way to eliminate the inclination of flange by bolt tightening. This will cause the flange to be subjected to excessive force and split, resulting in leakage at the valve.
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3、法兰之间的密封垫层对照好选用内径比法兰内径大2mm控制,假设是大口径垫片需求拼接处置事,选用斜口搭接的办法嵌接,不能用平口搭接,预防持久光运用垫片搭接处发生渗漏。而且法兰密封垫只能运用一层,不能放双层或许放偏。
3. Sealing gaskets between flanges are well controlled by 2 mm larger inner diameter than flange inner diameter. Assuming that large-caliber gaskets need to be spliced and disposed of, the method of inclined lapping is selected to be embedded. Flat lapping can not be used to prevent leakage of gaskets lapped by durable light. And the flange gasket can only use one layer, not double or offset.
4、法兰箍紧螺栓要运用异样种规格的螺栓,爲简便施工,对照好让螺栓装置目的一概(螺母位于法兰盘异样侧)。选用对向办法上紧螺栓。如此无妨使法兰受力均匀,箍紧成效好。
4. Bolts of different specifications should be used for flange hoop tightening bolts. For simple construction, the purpose of the bolt device should be uniform (the nut is located on the side of the flange with different specifications). Choose the opposite way to tighten the bolt. In this way, it is no harm to make the flange force uniform and the clamping effect is good.
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The above content is provided by Shandong Haipo Pipe Technology Development Co., Ltd. For more knowledge, please pay attention to our polyurethane insulation pipe manufacturer http://www.sdhpgy.com, thank you!!

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