Operation Technology for Constant Force Spring Hangers and Supports
1.1 Further optimize the construction drawings for the installation of row pipelines. Based on the number of pipelines, their positions, elevations, and alignments, reserve sufficient space for pipeline operation and maintenance, and determine the form, dimensions, and installation spacing of comprehensive supports.
1.2 When fabricating comprehensive supports, consider the actual outer diameters of various pipelines and the thickness of thermal insulation layers (if insulated) to determine the form and size of clamps. When necessary, carry out force calculation and verification for pressure pipelines to select and determine the specifications and models of sectional materials.
1.3 Install supports first, then pipelines: Snap lines to determine the installation positions of supports and the spacing between them according to the alignment and scope of the row pipelines. Determine the construction sequence of functional pipelines based on the hierarchical arrangement of the comprehensive pipeline layout, following the principle of "upper first, lower later" and "inner side first, outer side later."
1.4 All bolt-nut connections must be equipped with flat washers and spring washers to ensure firm fixation of the pipelines.
2. Quality Requirements for Constant Force Spring Hangers and Supports
2.1 The spacing of comprehensive supports shall be uniform, and the orientation of clamp bolts shall be consistent to achieve a neat and aesthetic overall layout. It is recommended to use galvanized finished modular adjustable comprehensive supports and hangers.
2.2 Supports and hangers shall be installed firmly, ensuring they are horizontal and vertical. When installed on sloped buildings, supports and hangers shall maintain the same slope as the building.
2.3 When stainless steel pipelines come into contact with carbon steel supports, wooden spacers or other isolating pads must be added to avoid direct contact between metals with different chemical properties and prevent electrochemical reactions.
