Welding copper pipes or a connection method is better to choose ?

Welding copper pipes -

process technology Welding, soldering and pressing make the connection of copper pipes one-piece, solid and reliable.In addition, methods used releasable fastening.These include all kinds of threads, flanges, compression fittings and self-locking.For this method produced a large number of fittings and other connection details.Consider how you are working with copper pipes with welding connection method.

welding technology of copper pipes is applicable to products with diameters from 108 mm and a wall thickness of 1.5 millimeters.It is performed at a temperature of 1084 degrees and only butt the ends of the tube.It is used several methods:

• gas welding using oxyacetylene torches;
• welding fusible electrode in an argon or helium environment;
• infusible electrode welding.

For products made of copper alloys used arc welding, and pure copper is used a non-consumable tungsten electrode in helium environment, argon or nitrogen.For welding of copper should be the flame is stronger than steel, so use an acetylene-oxygen flame.Welding copper is necessary to quickly and continuously, so that no oxides.

Tip!To suture was more reliable to do it forging.

Pressing - the fastest method

When deciding on how to connect copper pipes, you can select the compression method.The technology of this method is the technique of "cold" installation, which makes it possible to quickly and securely connect pipe.Today, this technology is used for fastening of products from all types of metal, plastic and metal pipes.This method provides a durable and reliable connection, which is limited only by the aging of the seal.Operations to be carried out for the compound in this manner is significantly less than other methods.Due to this, the required work time is reduced by several times.

In order to carry out pressing, it is necessary to process the pipe end and insert into the fitting up to the limit.Next comes the press work for copper pipes, which clasped the place of conjugation.For thin-walled material, the press fittings crimp sleeves.They allow you to create a reliable crimp in the interior of the pipe and the O-rings make the connection tight.

Important!For greater reliability of the attachment, you must check that the tube has been introduced into the fitting until it stops.

threaded connection parts

carving on copper pipes are not applied.If you need to perform a screw connection of copper pipes, then they put on a threaded fitting, which is mounted union nut.They are made such fittings made of bronze or brass, which allows to freely exercise transitions to other materials without causing galvanic corrosion.When connecting various diameters used expander for copper pipes, which can be "fit" the circle to the required size.

threaded connection is divided into two types, depending on the compression method:

• «American" - the item with a conical sealing element.The mating surfaces are conical or spherical.When using this method, the metal compound increases resistance to high temperatures.
• Bonding surfaces are flat.When this method is used the gasket polymer.Depending on the temperature at which the pipe will be used, are various spacers which differ in color.

Important!In the second method, the compound can not be zamonolichivat as to remain available for periodic inspection.