Insert into the water pipe: a description of all possible

08-01-2018
Pipes

There are cases when the water supply system needs to be expanded, this applies both to the connection of additional plumbing equipment and new circuits. In such cases, the insertion of an additional branch into the main water pipe is carried out.

In this article we will analyze the methods most frequently used to perform such a task.

Photo embedded plastic pipes in the general water supply

Metallic water supply

Steel pipeline in the apartment

Today, such systems are everywhere being squeezed out, aided by their high price and susceptibility to corrosive processes. In their place come more practical plastic products. But in some places you can still find steel pipes, so let's pay a little attention to them.

By welding without pressure

The implementation of the tie-in to the common metal water line

You will need:

Title Purpose
Welding machine The implementation of the connection of metal products
Autogen Cutout hole required diameter
Threaded nipple Intermediate element for connecting a new outlet
Valves The overlap of the water supply in the new branch
Autogen sample

The main problem of the entire event in answering the question, how much does the mentioned equipment cost? It is quite expensive, so it is often easier to invite specialists with their professional tools to perform this task.

The very same instruction looks quite simple:

  1. Shut off the movement of water in the line.
  2. With autogen we cut the necessary hole.
  3. Welded to the created passage nozzle.
  4. Install the valves on the thread.

Tip: be sure not to forget to restore the corrosion protection at the junction after performing all the work, as welding surely destroyed it.

  1. Turn on the flow of fluid.

Also, as an alternative, a certain length of pipe can be cut and a tee with an additional lead welded in its place.

Under pressure without welding

Pressure cut-off

Here the main tool will be a special device for drilling pipes under pressure.

Device for inserting into a pipe under pressure

So how to bump into a water pipe under pressure?

It is noteworthy that in the case of plastic piping, a similar technology is used:

  1. Remove the insulation and we clean the surface of the plumbing.

Tip: the cross section of the discharge pipe must be less than the effective section, otherwise you just break it when drilling.

  1. We install the flange with the output to the supply pipe and fix it with the help of a clamp with our own hands.
  2. We connect a valve to the flange and mount the said device for drilling to it.
Diagram of the whole structure that is assembled for the implementation of the frame
  1. Through the open valve, enter the cutter of the desired diameter and cut a hole.
  2. We remove drilling equipment by cutting off the water supply from the installed pipe.

This we considered how to crash into a water pipe without welding, if it is made of steel, and now we turn to polypropylene products.

Plastic water pipe

Water pipe from polypropylene pipes

The plastic pipeline is more practical in combination with water and, most importantly, is cheaper, therefore it can be more and more often found in apartments and private houses. Processing of this material is also simpler, which also applies to the tie-in into it, for which special devices are provided to facilitate the task.

We turn to the answer to the question of how to crash into a plastic water pipe?

Curved Flange

You can, of course, cut out a part of the pipeline and install a tee in its place, but in the case of a close arrangement of the structure to the wall, such an operation will be difficult. In addition, once again violate the integrity of the pipe is also undesirable. So let's go the other way more thoughtful.

To perform you will need:

Title Purpose
Pipe section with pipe When mounted, it becomes the base of the curvilinear flange.
Drill with a bit-bit Drilling hole
Adhesive sealant Sealing of joints
Compactor Seals the outlet connection
Hose clamps Tightening and fixing the pipe

We start the task:

  1. We cut the length of the pipe in two parts so that after that it lies flat on the main pipeline, making up its second wall.
  2. We drill a hole with a drill and a crown equal to the diameter of the prepared pipe.
Cutting the desired hole
  1. We impose on the resulting opening a plastic blank.
  2. The joints are coated with sealant.
  3. The resulting flange is fastened to the back of the pipeline with hose clamps.
  4. We mount a rubber seal in the nozzle; a sleeve-wool can also come up.
  5. We insert into the sealed socket pipe outlet.

Saddle

Special clamp for insertion into a plastic pipe with a cross-sectional diagram

A nurse is a device of two clamps and a hole for drilling, after which a tap is inserted into the water pipe. Such a device allows you to perform the task at any pressure level in the pipeline without any special skills. Enough to pay attention to work.

For home connections also apply nurses that have a built-in cutter and valve. They are installed even at pressures up to 16 bar, using coupling welding, and remain permanent. Their operational life is fifty years.

Conclusion

If the existing water supply system needs to be expanded, then an additional tap is used. The methods used for this differ depending on the material of the pipes, as well as the presence of pressure in them during the work performed. It is noteworthy that steel structures are less and less common, and more relevant are the recommendations for inserting into polypropylene water supply (see also the article What are the advantages of plastic water pipes and fittings for them).

Drilling pipe under pressure

The video in this article will provide you with additional information related to the material presented. Be careful, and you will succeed!