What are the basic methods for pipe laying? The following are introduced by the professional personnel of ventilation pipe:
?、?Pipelines conveying inflammable and combustible gases shall not be laid in the same trench as other pipelines.
?、?Cold and hot water pipes and steam pipes must be insulated.
?、?The distance between the outer wall of the pipeline (or the outer surface of the insulation layer) and the wall or trench wall shall not be less than 0.15m, the distance between the outer wall of the pipeline (or the outer surface of the insulation layer) and the column and beam shall be 0.05m, and the distance between the outer walls of various pipelines (or the outer surface of the insulation layer) shall be 0.1 ~ 0.15m.
?、?The distance between the outer wall of the air duct and the wall should be 0.2-0.3m. If the section is small, use small distance; if the section is large, use large distance.
?、?When the pipes are laid in the same trench or on the same frame, the water supply and drainage pipes shall be on the top of the cold and busy pipes, and the water supply pipes shall be on the bottom, and the water supply pipes shall be on the top of the drainage pipes.
?、?When the air pipe and water pipe pass through the floor and the wall, the size of the reserved hole is as follows: the hole of the uninsulated air pipe is the air pipe size plus 100 mm, and the insulated air pipe is the air pipe size plus 150 mm; the hole of the uninsulated water pipe is generally two sizes larger than the pipe diameter, and the reserved hole size of the insulated water pipe is the pipe diameter plus 150 mm.
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