Supply of C-type rigid waterproof casing, C-type rigid waterproof casing offer

A rigid waterproof casing for cast iron pipe, also applies to non-metallic pipe, but it should be about the size of the amendments adopted in accordance with the pipe wall thickness. 2, the rear wing ring and steel casing processing is completed, both in its outer wall paint brush again (including primer Zhang Dan or cold base oil). 3. The weight of the material listed in the table within the casing size steel casing (casing length L value is calculated by 200mm) and the weight of the wing rings. Steel casing and wing ring material with A3, T42 electrode welding. 4, at the walls of the casing wall, in case of non-concrete walls should use concrete walls, pouring concrete its scope, type Ⅱ casing should fly ring diameter (D4) large 200mm, and must be fixed to the casing once poured wall. Packing sleeve should tightly tamping. 5, waterproof casing at the concrete wall thickness shall not be less than 200mm, or should one or both sides to make the walls thicker diameter of the thickened portion of the smallest diameter ring should fly (D4) Large 200mm. 6, more rigid waterproof casing hemp oil, asbestos cement filling, tightly tamped fill.