In SNiP 3.05.01–85 ("Internal sanitary-technical systems") - there are no recommendations for arranging pipeline passages through building elements, except for the following:

"Non-insulated pipelines of heating systems, heat supply, internal cold and hot water supply should not adjoin the surface of building structures",
and
“The distance from the surface of the plaster or cladding to the axis of uninsulated pipelines with a nominal diameter of up to 32 mm inclusive with an open laying should be from 35 to 55 mm, with diameters of 40-50 mm - from 50 to 60 mm, and with diameters of more than 50 mm - accepted according to working documentation. "

The rules for crossing building elements with pipelines are not reflected in the national standard SNiP 2.04.01-85 ("Internal water supply and sewerage of buildings") according to design standards internal systems water supply and water disposal of buildings. Section 17 provides guidance according to which:

the places where risers pass through the floors must be sealed with cement mortar for the entire thickness of the floor (p. 17.9g);

the section of the riser 8-10 cm above the ceiling (to the horizontal branch pipeline) should be protected with cement mortar 2-3 cm thick (p. 17.9d);

before sealing the riser with mortar, the pipes should be wrapped with rolled waterproofing material without a gap (p. 19.9f).

This advice applies only to sewer risers.

Some recommendations for arranging the intersections of pipelines with various building elements are available in the all-Russian codes of practice and departmental technical recommendations. They apply, as a rule, to the design and installation of specific internal systems from a specific type of pipes.

SP 40-101-96 ("Design and installation of pipelines made of polypropylene" Random copolymer ") indicates (clause 4.5.) That
“When the pipeline passes through walls and partitions, its free movement must be ensured (installation of sleeves, etc.). In case of hidden laying of pipelines in a wall or floor structure, the possibility of temperature extension of pipes must be ensured. ".
In this case, we mean polypropylene pipelines.

Other codes of practice provide recommendations that apply to pipelines made of metal-polymer pipes. For example, in clause 5.7. SP 41-102-98 ("Design and installation of pipelines for heating systems using metal-polymer pipes") states that

“For the passage of pipes through building structures, it is necessary to provide sleeves. The inner diameter of the sleeve must be 5–10 mm larger than the outer diameter of the pipe to be laid. The gap between the pipe and the sleeve must be sealed with a soft non-combustible material that allows the pipe to move along the longitudinal axis "*

In another set of rules SP 40-103-98 ("Design and installation of pipelines for cold and hot water supply systems using metal-polymer pipes"), clause 3.10 states that
“For passage through building structures, it is necessary to provide cases made of plastic pipes. The inner diameter of the case should be 5–10 mm larger than the outer diameter of the pipe to be laid. The gap between the pipe and the case must be sealed with a soft waterproof material that allows the pipe to move along the longitudinal axis ".
Almost the same recommendations are given. Only the "sleeve" is called the "case" and the material from which it should be made is indicated.

There are other recommendations regarding metal-polymer pipes. So, in TR 78-98 ("Technical recommendations for the design and installation of the internal water supply system of buildings from metal-polymer pipes"), paragraph 2.20 states that

• "The passage of a water supply system from MPT through building structures should be carried out in sleeves made of metal or plastic" *.

And literally in the next clause 2.21, a material restriction is introduced:

"The intersection of ceilings with plumbing risers from MPT should be carried out using sleeves of steel pipes protruding above the ceiling to a height of at least 50 mm".

In the same document in the section "Repair work" (clause 5.9) it is indicated that
"When loosening the seal between the pipe and the case passing through the building structures, it is necessary to seal it with linen or other soft material".

The question arises: what kind of termination are we talking about? There are Standards that to some extent answer this question. For example, in TR 83-98 ("Technical recommendations for the design and installation of internal sewage systems of buildings made of polypropylene pipes and fittings") it is indicated (clause 4.26) that
"In the places where sewer risers pass through the ceiling, before grouting, the riser should be wrapped with rolled waterproofing material without a gap to ensure the possibility of dismantling pipelines during repairs and compensating for their temperature extensions".
In the "Guidelines for the design and installation of internal water supply systems for sewerage of buildings made of polypropylene pipes and fittings" there are sections concerning both water supply and sewerage. For sewerage it is indicated (paragraph 3.2.20) that
“The passage of polypropylene pipelines through building structures must be carried out using sleeves, the inner diameter of sleeves made of rigid material (roofing steel, pipes, etc.) must exceed the outer diameter of the plastic pipeline by 10-15 mm. The annular space should be sealed with a soft non-combustible material so as not to impede the axial movement of the pipeline during its linear temperature deformations. It is also allowed, instead of rigid sleeves, to wrap polypropylene pipes with two layers of roofing material, glassine, roofing paper, followed by bandaging them with twine, etc. The length of the sleeve must be 20 mm longer than the thickness of the building structure ". No information is provided regarding the passage of water supply pipelines through building elements.

It turns out that the intersection of pipelines made of polypropylene pipes with building elements can be completely equipped without the use of sleeves (cases).

In a national document - building codes SN 478-80 ("Instructions for the design and installation of water supply and sewerage systems made of plastic pipes") - it is indicated (clause 3.16) that

“The crossing of a building foundation by a plastic pipeline should be provided with a steel or plastic case. The gap between the case and the pipeline is closed with a white rope impregnated with a solution of low molecular weight polyisobutylene in gasoline in a ratio of 1: 3. The same type of sealing should be applied to the ends of the cases. If a tarred rope or strand is used to seal the gap, the plastic pipe should be wrapped with polyvinyl chloride or polyethylene film in 2–5 layers. It is allowed to seal with asbestos material (cloth, cord) with sealing of the ends of the case with hernite ".

The same building codes indicate (clause 4.6) that “In places of passage through building structures, plastic pipes must be laid in cases. The length of the case should be 30-50 mm longer than the thickness of the building structure. The location of the joints in the cases is not allowed "... In addition to the length of the case, information about the material from which the case should be made, the thickness of its walls and other characteristics are not given.

The set of rules SP 40-102-2000, which replaced SN 478-80 ("Design and installation of pipelines for water supply and sewerage systems made of polymer materials"), contains no information about the arrangement of intersections of pipelines with building elements.

Pipe sleeves are special structures designed to protect the system. They must be used when making the passage of a polypropylene structure through walls and other obstacles. They are carried out in the form of a pipe. The space between the structures is filled with a fire-resistant material. The material should be soft, since the structure, when exposed to temperature, can expand, therefore, space should be provided for its possible increase.

What are the sleeves for?

Do I have to purchase these parts? Are they necessary for installation? The use of liners is due to the following reasons:

• Polymer structures can change with temperature. During operation, they expand and move. To prevent deformations and ensure the necessary free space, the parts in question are used. They will ensure the integrity of the structure during installation work, changes of seasons, sudden temperature changes;
• Elements allow for dismantling work without destroying the structure;
• The part prevents odors and insects from entering the room from the next room.

However, the pipe sleeve should only be used in appropriate circumstances. Its widespread use is not always appropriate. It is also not necessary to use a waterproof material to fill the annular space. It is usually used when a sleeve with a pipe passes through the ceiling. Waterproof material, in this case, will prevent flooding of other rooms. See how they look different kinds the details in question, you can in the photo. They will allow you to better navigate the range of these products.

Kinds

Pipe sleeves differ in the materials from which they are made and in their sizes. Their required characteristics depend on the design parameters. The inner diameter of the part must be 5-10 mm larger than the outer diameter of the structure. As for the length of the sleeve, it must exceed the thickness of the pipe by 20 mm. When choosing a part, the following characteristics are also important:

• The protrusion is usually important for showers and other rooms in which the water level can rise above horizontal surfaces. In addition, in this case, the annular space is filled with a material resistant to moisture. It makes no sense to carry out a ledge if it is not necessary, because it will require additional costs;
• The size of the parts depends on how the structure is installed. With a closed installation technology, the protrusion can be omitted. With open installation technology, the dimensions of the elements must correspond to the characteristics of the room. The annular space must be sufficient to fill it with refractory or waterproof materials. In addition, the dimensions of the part should not impede the free passage of the main structures. This moment is required to carry out repair work if the structures fail.

You can see the varieties of pipe sleeves in the photo.

Application

Pipe sections are suitable for sleeves. The preferred material is steel and polymers. The optimal material is determined depending on the type of structures in the house. For example, with reinforced concrete structures, it is recommended to use a steel part, since it can be easily concreted both in the factory and during installation.

The ends of the product are carefully processed and polished. They should not have burrs and other deformations, since during installation all sharp protrusions can damage polymer structures. In addition, it should be remembered that the parts have little adhesion to the cement-based mortar.

It is not recommended to make parts from roofing material. According to the established norms, it is better not to allow it to come into contact with polymer materials. The material from which the part is made must be distinguished by fire safety in order to prevent the ignition of adjacent rooms in an emergency. To increase fire safety, you can purchase special fire cutters.

We have listed the main characteristics of pipe sleeves. In order to see all the variety of their shapes and sizes, you can look at the photo.

In combination with the Uniks-RS and Uniks-RM sealing modules, they form an effective gas and waterproofing system.

One-stop solutions

The sleeve, the sleeve in the wall, is basically an invisible but very important part of the sealing system.

There are many criteria that should be taken into account when choosing a penetration design, including the structural features of the building, the stage of the building's life cycle (construction, reconstruction), operating conditions, etc. So, in the case of installing a sleeve in monolithic waterproof concrete, during its hardening and as a result shrinkage, microcracks may form at the border with the surface of the sleeve wall, which, in turn, become channels for water to penetrate into the building.
The sleeve, with a flange welded in its middle part, provides its reliable mechanical connection with the reinforced concrete structure, and creates an additional barrier to water penetration along its outer surface. In cases where the construction of the building provides for the application of a gluing waterproofing membrane or bituminous coatings, the liner design includes fixed and movable flanges for reliable mechanical fixation of the waterproofing.

Sleeves, fittings

The places of entry of cables and pipelines into residential and industrial buildings are the most vulnerable to the penetration of ground and atmospheric water into residential and industrial buildings.
Unauthorized water leaks into buildings can be a serious problem, leading to constant dampness, mold and mildew on the walls.
Correct organization of engineering communications in the building solves this problem.
The sleeve, the sleeve in the wall, is mostly invisible, but very important part of the overall sealing system.
Sleeve is a general term that is often associated with a piece of a standard pipe embedded in a wall without any further qualifications.
However, standard thick-walled pipe alone is not enough.
There are many criteria that should be taken into account when choosing a penetration design, including the structural features of the building, the stage of the building's life cycle (construction, reconstruction), operating conditions, etc. So, in the case of installing a sleeve in monolithic waterproof concrete, during its hardening and as a result shrinkage, microcracks may form at the border with the surface of the sleeve wall, which, in turn, become channels for water to penetrate into the building.
The sleeve, with a flange welded in its middle part, provides its reliable mechanical connection with the reinforced concrete structure, and creates an additional barrier to water penetration along its outer surface. In cases where the construction of the building provides for the application of a gluing waterproofing membrane or bituminous coatings, the liner design includes fixed and movable flanges for reliable mechanical fixation of the waterproofing.
When reconstructing buildings, it is advisable to use sleeves that are attached to the front side of a wall or foundation for laying new lines of pipelines or cables.
The ideal sealed entry of pipes and cables into a building starts with a properly created "hole in the wall".
Unix sleeves are a fast and inexpensive way to obtain a sealed round entrance to a building for entering cables, air ducts, water pipes, heating and sewer outlets.
In combination with the Unix-RS and Unix-RM sealing modules, they form an effective gas and waterproofing system, provide maximum tightness and long-term protection against leaks.

Types and features

Unix sleeves are offered in a wide range. The catalog contains 4 main types of products:

• Unix-9200 with a welded middle flange. Sleeves are used to create penetrations through monolithic concrete foundations, walls and floors. The flange creates an additional barrier for water penetration through microcracks along the border between the outer surface of the sleeve with in-situ concrete. Manufacturing material - stainless steel as standard. The liner is used with any Unix RS and Unix RM seals.
• Unix-8200 with a flange for mounting from the outside of the wall. It is used in the reconstruction of already built buildings in combination with any Unix RS and Unix RM seals. The product is effective for dealing with pressurized and non-pressurized waters, the sleeve is gas-tight. Made from of stainless steel, supplied with a rubber gasket. The catalog contains a wide range of sizes.
• Unix-6200 with fixed and movable flange. It is used in the construction of concrete buildings and structures in which a waterproofing diaphragm or bituminous waterproofing is provided. It is used in combination with any Unix RS and Unix RM seals. The product is effective for dealing with pressurized and non-pressurized waters, the sleeve is gas-tight. Made of stainless steel.
• Unix-2200 - a lightweight model, consists of a polymer pipe with a waterproof collar installed in its middle part, which does not allow water to pass along the outer surface of the sleeve through microcracks in the concrete. This is the best option for low-rise buildings, the element is resistant to the effects of pressure and non-pressure water.

Selection options

The design is selected in accordance with several parameters. These are the design features of the structure, the conditions for using the sealing system and the stage of the building's life (sleeves are installed during the construction or reconstruction of the building). In the second case, elements are more often used that are mounted on the outside of the wall and foundation when installing new single or group communication lines.
Unix products are distinguished by their reliability, durability and ease of installation; they are ideal for solving the task at hand. Durable and reliable materials, convenient construction, resistance to static loads - everything ensures maximum efficiency of the liners. The products have gained an excellent reputation among builders in the residential and industrial sectors.

How to order products?

Choose a suitable option from the catalog or get additional information from experienced managers. The consultants will select the appropriate type of fittings for the introduction of communication lines into the building, taking into account the personal wishes of the customer. We offer complex solutions: according to the catalog it is possible to select not only sleeves, but also the corresponding seals for maximum sealing. Call today to ask your questions and place an order!

Fittings are one of the most essential connecting components today. Steel liners are increasingly being used for pipelines. An excellent and very durable fitting is used in a wide variety of communications. Steel sleeve for pipes is good both for office or residential premises and for industrial buildings. All sleeves for steel pipelines must perform a number of functions and clearly meet the tasks assigned to them.

Electrowelded steel sleeve in detail

Any steel pipe for water and gas supply liners is required everywhere today. The main functions that the steel sleeve of water supply pipes must perform are as follows:

• implementation of protective and waterproofing functions;
• sanitary and fire safety tasks;
• increasing the term of high-quality pipe operation
• the diameter of the steel sleeve for pipes must exactly match the dimensions of the connecting pipes in order to greatly facilitate any repair work.

Today the price for steel sleeves is quite affordable, while the material is only of the highest quality. In reputable hardware stores, you can easily select the required diameters of steel pipe sleeves. At the same time, the price of a steel sleeve for pipes will not particularly stand out against the background of other fittings required for laying a pipeline.

Electrowelded steel pipe sleeve and other types

For everyone who wants to purchase such a fitting, it is recommended to buy a steel sleeve only from a trusted supplier. An experienced sales assistant will always be able to tell you about the dimensions of the sleeve steel pipe, GOST, choose the required diameter and material. Sleeves made of steel electrowelded pipes, the price is no less attractive than the quality of steel, copper or aluminum, plastic, from which the part can be made. All steel wall penetration sleeves and other similar fittings fall into the following categories:

• for laying pipes for hot and cold water supply, for example, steel sleeve GOST 1070491;
• for the manufacture of a chimney - protective steel sleeve and other types;
• for the construction of an internal sewerage system - steel sleeve 410, etc.;
• to create a heat conduit for heating with steam.

The sleeve of the steel pipe GOST 1070491 or another sleeve of the steel pipe can be bought in our online store. However, even a steel 410 caliber sleeve must clearly comply with the parameters specified in the data sheet. Especially when it comes to the material of manufacture and exact dimensions.