Pipeline construction and installation of waterproof casing
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Author:佚名
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Published time: 2020-10-14
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The pipeline passes through railways, roads, streets, etc. To prevent the pipeline from being crushed by the load, a protective casing is set on the outside of the pipeline, such as: large-diameter concrete pipelines, large-diameter steel pipes, etc., to prevent external forces (loads) from directly acting on the pipelines Measures taken to cause damage to the pipeline on the outer wall. Waterproof casing is applied to construction, chemical industry, steel, tap water, sewage treatment and other units. Because of its wide range of applications, the construction and installation of waterproof casings is extremely important.
The pipeline passes through railways, roads, streets, etc. To prevent the pipeline from being crushed by the load, a protective casing is set on the outside of the pipeline, such as: large-diameter concrete pipelines, large-diameter steel pipes, etc., to prevent external forces (loads) from directly acting on the pipelines Measures taken to cause damage to the pipeline on the outer wall. Waterproof casing is applied to construction, chemical industry, steel, tap water, sewage treatment and other units. Because of its wide range of applications, the construction and installation of waterproof casings is extremely important.
1: The main pipe of the waterproof casing adopts ductile iron pipe, rubber ring socket interface, the bridge pipe adopts D325×8 welded steel pipe, and the pre-embedded branch pipe along the road adopts D219×6 welded steel pipe.
2: The pipe fittings and valves shall be tested and inspected before construction, and the pressure level shall not be lower than 1.5 times of the working pressure of the pipeline. The pipes and accessories shall be inspected after the materials enter the site and before the pipes are discharged, including written certification and physical inspection.
3: It is strictly forbidden to throw or violently collide the waterproof casing pipe during transportation, loading, unloading and stacking. The laying of the pipeline should be carried out after the inspection groove is qualified. Before laying the pipeline, the appearance of the pipes and fittings should be re-checked, and the pipes and fittings found to be problematic should not be used.
4: When the waterproof casing pipe is hoisted and put into the tank, a reliable soft belt sling should be used, and the ditch should be steadily lowered, and no violent collision with the bottom and wall of the groove should be allowed. When piping is arranged, it is distributed along the groove to reduce secondary transportation. To ensure the accuracy of the down tube position, a level with a center scale should be placed in the pipe. When checking, see the hanging center line and the center of the level on the pipe coordinate center line. Whether they overlap.
Henan Changmao pipeline technology is exquisite, the equipment adopts new technology and new technology, so that the products can better adapt to the different installation conditions of the environment in various regions, and bring great convenience to the construction and maintenance of the project. Customers trust, so that every partner will firmly imprint the "Changmao" brand in their hearts.
