Cantilevered double scaffolding inside and outside the pole spacing how much
In the use of: ① rigid waterproof casing used in the pipe does not need to withstand vibration and telescopic deformation of the wall inside the building, and the general applicable wall thickness is 200mm; ② flexible waterproof casing is mainly used in seismic requirements to withstand pipeline vibration And rigid and flexible deformation of the building with strict waterproof requirements inside the wall and the general applicable wall thickness is 300mm from the structure: ① rigid waterproof casing is welded with a pipe outside the water ring; ② flexible waterproof casing is steel Outside the welding 3 wing ring, one side of the four screw buckle, which welding a sarcastic attack tank Ji Intuit Qing Gui reed into the two blanks, plus a ring, outside do a flange, plus 4 double Face bolts, head welded a steel pipe, the pipe after the installation, the flange on the tightening of the screw, the more tight the more the ring, the more watertight, generally in the relatively high demand for water, such as pool out Water outlet
Fire rating is different, generally can reach b1 level
General steel pipe length of 9m, 9 divided by the root number is about equal to 6.5m, that is recommended above 6.5m from the beginning to set the scissors support, because the scissors support itself is very simple, for safety reasons, Front of the blessing, must be installed
