Compression Connection Of Thin-Walled Stainless Steel Seamless Pipe

Changsha China
Categories: Building Engineering / China Tags:
Steel Pipes

The emergence of the construction technology of crimping connection of thin-walled Stainless steel welded pipe  came into being. This process has obvious advantages in terms of labor, machinery and materials.Applicable to all kinds of civil buildings cold water, hot water, drinking water, clean water pipeline.


1. Short construction time

After the pipe is inserted into the pipe fitting, it can be pressed with a special pressing tool, and the connection operation can be completed in an instant. There is no need for complicated threading operations during threaded connection, and no need for pre-processing and post-processing operations during welding, which greatly reduces the overall cost of pipeline construction.

2. No need for skilled workers

Skilled technicians are required for threaded connection or welding connection, and the compression type pipe fittings series use special compression tools. As long as the construction essentials are paid attention to, anyone can operate it and can ensure uniform quality.

3. Do not use fire source

No fire source is used at the pipeline construction site, and the construction safety performance is greatly improved.

4. Clean construction

There is no need for cutting fluids or other accessories for threaded connections, nor a range of fluxes for soldered connections. Therefore, it is not necessary to consider the various effects of these additives.

5. Lightweight piping

Because the stainless steel pipe is thin-walled and has a large flow rate compared with other types of pipes, the lightweight advantage for super high-rise building piping is particularly obvious.

Pipe laying

1. When the pipeline is laid openly, it should be installed after the civil engineering decoration is completed. Before installation, you should first check whether the positions of the reserved holes are correct.

2. The distance between the fixed brackets of the thin-walled stainless steel pipe should not be greater than 15m. The distance between the fixed brackets of the hot water pipe should be determined according to the thermal expansion of the pipeline and the allowable compensation of the expansion joint. Fixing brackets should be set at variable diameters, branches, interfaces, and on both sides of load-bearing walls and floors.

3. Plastic pipe clamps can be used when installing pipes with a nominal diameter not greater than 25mm. When using metal pipe clamps or hangers, a soft spacer such as plastic tape or rubber should be used between the metal pipe clamps or hangers and the pipes.

4. Metal pipe clamps or hangers should be used to fix the water supply hydrants and water distribution points; the pipe clamps or hangers should be set at a distance of 40~80mm from the fittings.

5. For exposed pipes, the distance between the outer wall and the decorative wall: 40mm when the diameter of the project is 10~25mm, and 50mm when the diameter of the project is 32~65mm

6. When the pipeline is over the floor, the casing should be set up. The casing should be 50mm higher than the ground and the roof, and strict waterproof measures should be taken.

7. For hidden pipelines, pressure test and acceptance records of concealed works should be made before closing. After the pressure test is qualified, it can be filled with cement mortar.

8. There shall be no axial bending and twisting when the pipeline is dared to be installed, and it shall not be forced to correct when passing through the wall or floor. When it is parallel to other pipelines, the protection distance should be reserved according to the design requirements. When the design is not specified, the clear distance should not be less than 100mm. When the pipes are parallel, the thin-walled stainless steel pipes in the pipe trenches should be located on the inner side of the galvanized steel pipes.

Snap connection

Make sure that the groove of the clamping jaw is placed on the convex part of the arc of the joint body, and the clamping is in place.

1. Before pressing, please confirm again that the mark is within 2mm from the end face of the tube.

2. When pressing, press and hold the pressing tool until the pressure is released. Insufficient pressing is the reason why the joint leaks and reduces the performance. If there is a loose pool at the pressing place, it can be pressed again at the original pressing place.

3. Threaded pipe fittings should lock the rib first and then press, so as not to cause the pressed joint to loosen due to screwing the rib.

4. When the piping is bent, please correct it at the straight pipe, do not bridge it at the pipe fittings, otherwise it may cause the compression part to loosen and cause leakage.

Press check

Use a special gauge to check whether the size after pressing is in place to prevent bad construction. The clamping size should be carefully checked. If the gauge cannot be placed in the clamping place, it should be clamped again or cut off and reinstalled.

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