How to install ball valves for pipes of different materials

Not so long ago, exclusively metal pipes were used in the construction of household communications. At the present time, the range of materials has expanded considerably, and, for each of their types, special stop valves are used, which are installed in different ways.

Below we consider what cranes are used for pipelines made of different materials, and how they are installed.

Mounting methods

So, in addition to the metal pipeline, which has long become a classic, currently used the following types of materials:

• Metal plastic;
• Low-pressure polyethylene;
• Polypropylene;
• PVC

Below we take a closer look at the installation of shut-off valves with our own hands on each type of these pipelines.

Metal pipe

So, we will consider how to connect a metalplastic pipe with the crane. First of all, it should be said that metal collet valves are used for metal plastics. It is installed very simply, and, it does not require special tools or special skills.

The fastener element of such devices consists of the following elements:

• Nut;
• Collet ring;
• Fitting (located on the device).

Instructions for the implementation of this work is as follows:

• First of all, it is necessary to cut the pipe smoothly so that the section is perpendicular to its axis.
• The junction of parts must be carefully cleaned.
• Then the nut and collet ring are put on.
• After that, the tube is put on the fitting.
• Next, the collet ring slides over the joint and the nut tightens. For tightness, thread the tape should be wound.
• After this, the same way, the valves are connected to the pipeline on the other side.

I must say that in general it is very easy to work with metal-plastic. For example, if you need to insert a tap into a water pipe that is already installed, you can simply cut it and install the stop valves in the manner described above.

HDPE

The crane for polyethylene pipes is also made of polyethylene, and even the locking mechanism is made of plastic, however, this does not affect the durability of the valves. As for the method of installation, it can be done in three ways:

Note! There are valves with a combined method of installation, which, as a rule, additionally serve as adapters between pipelines made of different materials.

Polypropylene

Valves for plastic pipes made of polypropylene are made in the form of a coupling. Their installation is carried out by the welded method, respectively, for these purposes you will need a special welding machine, which is also called a soldering iron.

Below is a detailed look at how to put the valve on a plastic pipe made of polypropylene:

• First of all, you need to install the nozzle of a suitable diameter on the soldering iron.
• Then you need to turn on the soldering iron and wait until it warms up to operating temperature.. A green indicator will indicate this.
• While the welding machine is warming up, you need to clean the tube (if it is reinforced). For these purposes, you should use a special tool - stripping, which is put on the tip of the tube, after which it is turned several times.

• After that, you need to insert the connected parts into the nozzle and wait for a certain time until their surface warms up and becomes soft. The time for each diameter of the parts is shown in the table that comes with each welding machine.
• After the time specified in the table, you need to remove the parts from the nozzles and connect. In this position, they must be fixed until the plastic cools.
• Further, the same way, the valve is connected to the other side.

Tip! Before inserting the faucet into a plastic pipe made of polypropylene, you should practice on the scraps of pipes and cheap fittings so as not to spoil the valve, since the price of this product is quite high.

Here, perhaps, all the main points of how to connect the valve to a plastic pipe made of polypropylene.

PVC

Often used for water pipes PVC pipes, for which also use a separate type of valves. The connection is carried out in a threaded way, however, for this purpose, the tips that are included with the device must be glued to the pipes.

This method of installation is quite reliable, since the adhesive melts the surfaces to be joined, and, in fact, they are welded to each other.

So, the work is done in this order:

• First of all, you need to put a nut on the tube.
• Then you need to prepare the surface - clean from possible contamination and degrease with methylene chloride.
• After that, you need to put on the tip and note how deep it is put on.
• Next, you need to apply glue to the entire length of the marked area. As a rule, for these purposes use gipk-127 glue. It should be quickly spread with a uniform layer using a soft brush with a thickness of three to four centimeters.
• Then you need to quickly put on the tip and rotate it a quarter turn.
• In this state, you need to hold the parts for at least a minute. If all actions were performed correctly, a thin glue bead should stand out from under the tip when gluing.
• After that, you need to manually tighten the nut on the device.
• Further, the same way, the valve is connected to the other side.

Note! Almost always you can independently install or replace the stop valves of the water supply system or the heating system. But the crane for the gas pipe must be installed by specialists.

Here, perhaps, all the features of the installation of valves for pipelines of different types.

Conclusion

We considered the most common options for installing valves to different types of pipelines. Any of them is not difficult to perform independently. The only thing you need to do the work carefully, adhering to the above recommendations to the connection turned out tight.

From the video in this article, you can learn some additional information on this topic.