It is important to know the types of Swaging Tools for multilayer pipes that exist in the market, saves time and follows the basic points to take into account step by step.
Swaging is a connection technique that involves deformation of the material to ensure the assembly of two pieces. Widely used for sanitary and heating installations in multilayer and PE-X, it is also of great interest for copper or steel networks. Faster than welding, Swaging is a safe and easy to control method that does not require a fire permit.
Best Swaging tools
There are two types of Swaging tools: hand tools and battery or power tools. For a professional, the use of cordless or electric tools is obviously recommended. In fact, the Swaging machine (with battery or pluggable) allows a speed and standardization of the operation that guarantees a perfect Swaging. This machine is accompanied by clamps and inserts of different types, to adapt to the diameter of the tube and accessories to connect . There are three types of jaws.
The mother gag with inserts
The mother jaw system is very practical, since the inserts allow you to change the tube material or diameter without having to change the entire jaw. A way to simplify work and save time ! This makes it very easy to work indifferently on steel, copper, multilayer or PE-X, and on any type of network. In terms of size, the inserts correspond to tubes ranging from 12mm to 28mm for metal tubes and 32mm for multilayer.
One Piece Gag
With this solution, there is one clamp for each diameter and crimping profile. It is easy to use because it does not require insert management. However, it represents an additional cost for the installer who will have to buy and store the different jaws in order to be able to secure each diameter (from 12 to 63 mm) and Swaging profile.
The adapter with chains
This solution is used for large tube diameters, greater than or equal to 40 mm.
Note: Solutions and diameters may vary depending on the machine manufacturer.
The different stages of Swaging:
The following are the different actions that the installer must perform to ensure good Swaging:
Cut the tube
In order to cut the tubes to the desired length and depending on the material (multilayer, PE-X or metal), the installer can use a tube cutter, a fine tooth saw or a mechanical saw. For metal tubes, care must be taken to cut the tube completely to avoid the risk of corrosion. Cut the tube at a 90º angle to the tube. When cutting, take into account the length of the tube that is inserted inside the fitting.
After being cut, the ends of the tubes must be deburred, inside and out, to remove debris or burrs. This step is important to avoid damaging the O-ring when inserting the tube into the crimping fitting . Deburring the inside of the tubes also serves to prevent pitting and corrosion of the metal tubes. Internal and external deburring can be carried out with a material-adapted manual deburrer or an electric pipe deburrer. Finally, check that the O-ring is correctly positioned on the fitting.
Special feature of the multilayer pipe
When cutting the multilayer tube, it can be slightly deformed, so it must be calibrated to regain its cylindrical shape. In addition to deburring, the multilayer tube must also be chamfered, i.e. a small bevel must be made on the inside and outside edge of the tube to avoid damaging the fitting’s O-ring. For this reason, it is recommended to use a calibration tool to deburr and calibrate the tube edges at the same time.
Mark the tube
To achieve reliable and quality Swaging , the required insertion depth must be marked on the tube. This marking can be used to identify any modifications to the accessory before Swaging. To identify a change before or after Swaging, it is preferable that the marking remain visible and close to the accessory.
Mount the fitting on the tube
Next comes the stage of assembly. To accomplish this, simply insert the tube into the fitting, twisting slightly and Swaging axially at the same time, up to the insertion mark. When it comes to a fitting without a stop, the tube must be pressed to the marked insertion depth. Warning: Forced insertion of the tube into the fitting can damage the O-ring.
Before Swaging, the installer must check that the Swaging jaws, inserts and/or chains are free of dirt. You should also check that the clamp is in perfect working order. Make sure to use the appropriate clamps for the profiles of the accessories to be pressed. It is also important to correctly position the clamp on the accessory to avoid incorrect Swaging. Check the correct operation of the Swaging tool according to the manufacturer’s instructions.
Finally, once the Swaging process has started, it should not be interrupted. To visually determine the quality of the Swaging, some accessory suppliers offer solutions such as the installation of a control ring that changes appearance after Swaging.
The basic points to keep in mind while working with the Swaging tool
- Be sure to use the correct jaw size depending on the diameter and profile of the accessory.
- Check the correct condition of the jaws before use.
- Check the cleanliness of the inside and outside of the tube.
- Place the Swaging machine correctly in the accessory.
- Finish the process once the Swaging has started.
Swaging is a technique that an installer must master to guarantee a connection in a quick and easy way. It is achieved in any type of material, it only requires using the appropriate material and following some basic steps before and during its execution.
Connection: multi-layer crimping accessories
Today, connection technologies are numerous and varied. Among them, the connection with multi-layer Swaging accessories is particularly convincing for its speed and ease of implementation. What are the advantages of these multilayer crimping accessories? Why and how to use them? Let’s do a review:
What is a multilayer connection for Swaging?
In the market for more than 10 years, the multilayer pipe is part of the family of synthetic or composite pipes type PE-X. However, it has more qualitative characteristics compared to other systems. In fact, due to the presence of aluminum in its composition, the multilayer tube is easier to handle and is very robust.
The advantages of multi-layer Swaging accessories
Easy to use: no soldering required.
Fast: up to 40% less time compared to traditional systems.
Economic: it is up to 20% cheaper than copper.
Safe: allows cold connection and does not require a flame (gas).
Application cases of the multilayer Swaging accessory
Heating installers increasingly use this solution in new construction and renovation, due to its profitability. The multilayer connection adapts to various types of applications such as:
1)Hot and cold sanitary water supply.
2) Low temperature power supply, heating / cooling system.
3)High temperature networks.
How do I assemble a multilayer Swaging accessory?
- Cut the tube with a pipe cutter.
- Deburr the inside and outside of the tube.
- Mark the insertion depth of the tube.
- Insert the tube into the fitting.
- Fit the fitting to the clamping jaw (the latter requires clamps or inserts adaptable to the tube diameter and the type of fitting used).
- The multilayer accessory for Swaging is a simple, reliable and economic solution that is applied both in new construction, as well as in rehabilitation and reform.