How should the installation of protective closed casing be carried out?
1 . After installation, the protection casing should be level with the wall, beam and column finish surface. The water supply introduction pipe, drainage outlet pipe, ventilation pipe and oil supply pipe through the human protection enclosure should be pre-buried in advance, and the pre-buried casing should not be welded off the reinforcement as far as possible, and the pre-buried height of the protection casing should be made reference to the site drawing.
2 . There is a baffle and fixed flange of the protective confinement casing in the installation, the need to first fill the material after the construction of the baffle and fixed flange. According to the size of the civil drawing beam and shear wall, strictly in accordance with the quality requirements, construction specifications require construction. Protective closed casing is to better deal with there are some underground buildings shall be piped through the wall and according to the place and there are strict moisture-proof provisions.
3 . There are also some buildings that require pipelines to pass through the wall, in addition to limiting the pipeline not to cause expansion and offset due to temperature change or external forces, and not to allow the pipeline to cause vibration outside under the effect of the elements and the production of its shell once poured on the wall, the pipeline from the waterproof casing is in the middle according to.
4 . Pipe diameter and waterproof casing right in the middle with a rotary seal, with a moisture-proof and shock-absorbing effect. Both sides of the protective casing is suitable for Type I human defense, underground buildings, chemical plants, steel, drinking water, wastewater treatment and other pipelines through the wall where strict moisture-proof provisions. Both sides of the protective airtight casing material protective airtight casing is manufactured in accordance with the national industry standard 07FS02 production manufacturing, raw materials selected Q235-A.
