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How to find a real and effective manufacturer of rigid waterproof casing

Time: 04-25 󰃯 Reading times: 324 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: All industrial equipment has its own specifications. Only when it reaches the standard can it give full play to its effectiveness. Every step of manufacturing has strict regulations, and there are proper inspection methods. The selection of materials for goods is very strict, and the regulations must meet the national standard atlas

All industrial equipment has its own specifications. Only when it reaches the standard can it give full play to its effectiveness. Each step of manufacturing has strict regulations, and there are proper inspection methods. The selection of materials for goods is very strict, and the provisions must reach the thickness of national standard atlas. The thickness of wing ring and casing shall meet the specification, Waterproof casing Both sides of the wing ring should be fully welded on both sides, and the welding should be full, flat and smooth without slag inclusion, bubble and crack. then Flexible waterproof casing How to meet the requirements when testing the installation. Let people know.
Before installation of flexible waterproof casing, strength and tightness test shall be conducted. 10 samples shall be randomly selected from each quantity (of the same model, specification and brand), and no less than one. The strength and tightness tests should be carried out one by one for the waterproof casings installed at the main pole. The strength and tightness test of the waterproof casing shall meet the following requirements: the strength test pressure of the flexible waterproof casing is 1.5 times of the pound class, and the tightness test pressure is 1.1 times of the pound class; the test pressure shall not be changed during the test duration, and there shall be no leakage on the shell packing and valve disc protruding surface. The duration of pressure test of flexible waterproof casing should be many. Attention should be paid to prevent dirt from falling down on the waterproof casing, avoiding the ground precipitation from flowing into the ditch, and temporary plugging branch pipe when the construction is interrupted. For collapsible loess, seasonal frozen soil and expansive soil areas, the laying of buried pipes should meet the requirements of relevant standards. When the flexible waterproof sleeve is connected with cast iron pipe, special accessories should be used. When using concrete twist joint, the waterproof sleeve shall be inserted into both sides of the socket, and then the dry yellow sand cement shall be rolled after being roughened with sandpaper or brush coated with glue agent; after inserting, the oil hemp wire shall be used to fill in and evenly, and the concrete shall be used to twist the mouth. After the installation of flexible waterproof sleeve pipe, irrigation test must be conducted before filling. The backfill can be carried out after the irrigation test is qualified. The backfill should be plain soil, and the thickness of each layer should be 0.15m
Is it a little dizzy to see so many regulations? In fact, if his regulations meet the requirements, it is not easy to rush. The commonly used materials, finished products, semi-finished products, accessories, equipment and equipment of flexible waterproof casing must have Chinese quality certificate, and the specification, model and characteristic test report shall comply with national technical standards or design regulations. When entering the site, the project shall be inspected and accepted and determined by the engineer. Therefore, we can not buy the defective waterproof casing because of its low price.