From time to time, the owner of a house or a summer residence tackles a seemingly not so difficult, but actually difficult task - inserting a pipe into a pipe. In this case, it is important to fulfill two conditions: to preserve the integrity of this section of the pipeline and not to violate its hydraulic mode, whether it is installing a meter or filter, connecting a household appliance (washing machine or dishwasher), and taking water from the water supply.
The problem is solved in several ways, depending on where the insertion point should be located, from pipe laying, etc.
In private houses and country cottages, where there are two or several floors, many residential and utility rooms, the insert in the
water pipe is replaced by a collector connected to it. It has several outputs to which you can connect without any insertion either the desired pipe or water intake hoses for household appliances. This is the most rational solution in those rooms where a large water intake is planned.
If you need only one branch, a tee is inserted into the pipe. But things get complicated if there is no untwisted connection in the place where the
pipe insert should be
in the pipe . We'll have to very accurately cut the pipe section under the tee and even weld it qualitatively at the ends. Even worse, if the pipe is almost adjacent to the wall or even half walled up.
No less problems with plastic pipes: you need to replace the pipeline segment with two small cuts plus a section with a pipe to which a new pipe is connected. Is it really impossible to crash into a pipe without cutting it? Can. And almost any.
The aforementioned segment with a pipe will be required, but it must be cut along the main pipe so that a flange is obtained that fits snugly against the pipe into which they cut. It should tightly enclose this pipe at the site of the upcoming plunge, reliably covering it. In this place you need to drill a hole equal in diameter to the nozzle. The place around the hole, not reaching the edge of 1 cm, and the entire inner surface of the flange are lubricated with non-curing sealant. Then, the flange is superimposed on the insertion point and tightened at the edges with clamps until the extruded sealant appears on the edges of the flange (it is removed). If the pressure in the pipe is small, the flange can be attached to it by wrapping a wide electrical tape. Such a
pipe insert
into a pipe made of plastic can be made by any home master.
If the pipe into which you want to crash is made of metal, then a flange with a pipe will most likely have to be made by yourself. The fact is that the inner
diameter of the pipe under the flange must be equal to the outer diameter of the pipe where the insert is to be. This will provide a minimum clearance between the pipe surface and the bottom of the flange. But after its manufacture, in this case, you will have to drill a hole of the desired diameter in it and weld the corresponding pipe to it.
There are some peculiarities in the fastening of the flange to the pipe, especially if the insert is made into a cast-iron pipe. In some cases, it is almost impossible to use welding for this. We have to replace it with the already mentioned non-curing sealant and clamps. If the pipeline is used to transport process water, an
epoxy resin can be used
, but in this case it will be necessary to exclude its contact with water. This is achieved by making a thin strip of rubber bandage. After the connection has been made, it is highly advisable not to remove the clamps - for warranty.
Thus, pipe insertion into a pipe of almost any purpose can be carried out - water, heating, and sewer.
By the way, a metal flange (only without a nozzle) can be closed in a similar way to the fistula formed on the pipe.