According to the pipeline drawing of a certain floor of a system, and indicate the interface location.
The design of pipelines should be numbered from the starting point, which is generally the interface position. Nodes with the same cross-sectional specifications and length should be numbered in the same order. For the convenience of organized construction.
The design of pipelines should display the position of branch hangers, and the spacing of branch hangers and the specifications of all materials should comply with the following specifications and technical regulations.
The design of ventilation ducts in Shandong should prioritize considering elbows and inner diameters that meet the inner diameter length requirements of concentric elbows.
The pipeline design should indicate the position of the bend, the position of the pipeline axis, and the elevation of the pipeline bottom.
Issues to be noted in processing
The processing of ventilation ducts cannot have steel reinforcement skeletons or steel bars installed inside, as adding them will affect the quality of the ducts.
The connection method of C-shaped right angle insertion and S-shaped insertion cannot be used for processing. For special pipelines, snap on bite openings cannot be used. After the production of the ventilation pipe is completed, it needs to be cleaned with cleaning solution to meet the standards before sealing can be carried out.
Reduce the occurrence of longitudinal joints during pipeline processing, instead of transverse joints, and the pipeline gap should be blocked with sealant according to the design cleanliness level requirements. The sealing surface of the pipeline plate joint should be located on the positive pressure side of the ventilation pipeline wall. Anti corrosion measures should be taken during the processing of ventilation pipes in Shandong. Pipeline parts need to be galvanized.
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