The installation and construction of copper pipes should be developed before the start of the scientific process to ensure that the construction process is up to standard. Share the installation and construction steps of copper pipes commonly used in our factory.
Copper pipe straightening → cutting → pipe prefabrication → pipe installation → pipe pressure test → insulation → pipe flushing → system water
Table of Contents hide
1 Process overview
2 The installation steps of copper pipe detailed explanation
2.1 Straightening of copper pipes
2.2 Cutting of copper pipe
2.3 Pipe prefabrication
2.4 Installation of bracket and pipeline
2.5 The main points of copper pipe welding operation
2.6 Flange connection
2.7 Water pressure test
2.8 Pipe insulation
2.9 Flushing of pipeline system
3 Post-construction testing
3.1 Quality standard
3.2 Protection of finished products
3.3 Quality issues that should be noted
The installation steps of copper pipe detailed explanation
STRAIGHTENING OF COPPER PIPES
- (1). Copper channel straightening should be filled with sand, and then straightened with a straightener; sand-filled copper pipe can also be placed on a flat plate or workbench, and lay a wooden mat on it, and then rubber hammer, wooden hammer or square wood along the body of the pipe gently knocked, straightened section by section.
- (2). Be careful not to use too much force in the straightening process and not to make hammer marks, pits, scratches or rough traces on the surface of the pipe. After straightening, the residual sand inside the tube should be cleaned up.
CUTTING OF COPPER PIPE
- (1). Copper pipe cutting can be used hacksaw, wheel saw cutting, but shall not use oxygen – acetylene flame cutting. Copper cutting, should prevent improper operation and deformation of the tube, the end face of the tube incision should be perpendicular to the axis of the tube, the burr at the incision should be cleaned up.
- (2). Copper pipe bevel processing using a file or beveling machine, but shall not use oxygen – acetylene flame to cut processing. Clamp the copper pipe vise jaws on both sides should be padded with a wooden board liner to prevent pinching the pipe.
PIPE PREFABRICATION
(1). According to the size of the processing chart, the connection method used, calculate the length of the pipe section (including the length of the inserted fittings and the length occupied by the fittings) to cut the copper pipe material.
(2). Pipeline construction conditions for ground prefabricated pipeline, without affecting the premise of on-site installation, as far as possible, copper pipe, tee, elbow, reducer and other pipe fittings prefabricated into the required complete pipe section before installation; installation of the compensator, it is appropriate to connect the compensator with the adjacent pipeline prefabricated pipe section before installation; should be prefabricated as far as possible into the appropriate length of the pipe section before installation; multiple pipelines laid in parallel, should Try to make the pipeline neat and beautiful.
INSTALLATION OF BRACKET AND PIPELINE
(1) According to the pipeline direction, length, pipe fittings and the location of the compensation device, set the corresponding fixed bracket and general common bracket, the card frame model should be matched with the pipe to ensure that the card frame is installed smoothly and firmly, fixed bracket, coordinate position must be accurate and reasonable to ensure the compensation effect. When steel bracket is used, 3㎜ thick asbestos rubber mat is added between pipe and bracket. The spacing of copper pipe movable bracket is shown in the following table.
Nominal internal diameter
(mm) 15 20 25 32 40 50 65 80 100 125 150 200
Interval
(m) Vertical Piping 1.8 2.4 2.4 3.0 3.0 3.0 3.5 3.5 3.5 3.5 4.0 4.0
Horizontal piping 1.2 18 1.8 2.4 2.4 2.4 3.0 3.0 3.0 3.0 3.5 3.5
(2) Prefabricated pipe sections will be adopted to connect pipe fittings, and through the selected installation method, the pipe sections will be connected into complete pipeline according to the design requirements, and fixed on the support and hanger to become a complete pipeline system. After the installation of copper pipe, it should meet the design requirements and construction specification standard requirements, and ensure that the pipe is straight and horizontal.
