Types of plugs for pipelines

A plug is a pipeline part with which the end holes of pipes are closed; its main role is used in the manufacture of various containers: boilers, apparatus, vessels.

Depending on the type, the fitting is installed in systems to completely or temporarily stop the movement of transported products. The pipe part allows you to preserve the pipe section for a long period or carry out periodic maintenance and repair work. It is also used when transporting pipes to avoid internal damage.

Operation of steel plugs is possible:

at industrial enterprises;
in public utilities;
at home.

Types of stubs [edit | edit code ]

Depending on the method of fixation, pipe plugs are divided into flanged, wafer, flat welded, rotary, elliptical, spherical and others.

Flange steel plugs withstand temperatures of the working environment from −70 to + 600 °C. Flange plugs are highly resistant to aggressive media. Such pipe plugs are used for oil and gas and chemical pipelines.

In pipelines with a less wide temperature range of the operating medium, flat welding plugs and elliptical pipe plugs are used.

For each plug, the nominal pressure and nominal diameter must be determined.

What are the differences between the plug and the bottom?

The plug is a part of the pipeline, and the bottom is part of the boiler, vessel or other container.
Hence the diameter limitation. The diameter of the plugs is limited by the diameters of the pipe, and the diameter of the bottom can be much larger and limited by the diameter of the container.
The plugs have virtually no bead (i.e. straight part). The height of the side is not regulated. At the bottom, one of the important parameters is the side height (h2). This parameter is regulated by GOST 6533-78.
The plugs have two designs (the differences are in the standard of the pipe to which the plug is welded). The bottom has three types, which differ in the height of the elliptical part and outer diameters.
In GOST, the list of steel grades for plugs is clearly regulated; in GOST, specific steel grades are not indicated on the bottom.
GOST for plugs establishes a formula for calculating the conditional (nominal) pressure for each standard size of plugs. GOST does not regulate conditional pressure on bottoms.

ONYX technical series about the elliptical plug

You can purchase elliptical plugs by sending a request by email or calling the sales managers.

➥ 8-800-555-38-83 Free within the Russian Federation

➥ St. Petersburg

➥ Ekaterinburg

Other uses [ edit | edit code ]

To keep pipes clean during transportation.

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A pipe plug is a multifunctional device that plays a decorative role or serves as an important technical element of pipeline systems. This review will help you understand the features of plugs, the possibilities of their use and installation rules.

Best answers

Alexandra Timoshenko (Ivanova):

Hello, according to Decree No. 307 of 2006, only you cannot be disconnected. due to the fact that there is only one riser for all floors and if you close the valve in the basement, half the house may be without water. can be legally turned off if the entire riser of debtors or the entrance. disconnecting only you is problematic because you need to create a commission, and completely cut off the batteries and install new risers without access to the batteries, but in winter they have no right to do this! ! and the debtor by law is a tenant who has a debt for electricity or utilities for more than three months.

Michael:

maybe the valve will be closed and sealed, that’s all the tricks

Valery Kabirov:

can

Vika Harchenko:

maybe there is a special device in the basement, so it’s better to pay

-=GrEmLiN=-:

there is only one riser and you can turn off the water only by coming to your place and turning off the tap. or close the water to the entire entrance.

Serge:

They can, they have a completely stupid solution, the branch is cut off, crushed and welded. For some reason they don’t care what happens next.

{M.S}Noon Rider:

If you need to close it PERSONALLY, they will have to come to your apartment - otherwise, they will have to block the entire riser...

Lucinda Perchik:

Of course they can!

BLIZNEC:

can

Egor:

Recently they showed on TV how they shut off the sewer system, lower a plug from the roof into the sewer pipe below your apartment, and all the uncleanliness goes to your apartment, the idea is interesting and the spectacle is sad, you won’t be able to use the water, so negotiate, even if you pay a ruble They no longer have the right to turn it off!!!

Andrey Volkov:

Don’t even doubt it - they will come and block everything in your apartment.

Alexander Vasiliev:

Maybe, by a court decision, they will come and block your apartment. But in addition to cold water and heating (in winter).

Grandfather Au:

they will go into the apartment with the district police officer and seal it if the house of new projects with floor-to-floor wiring can easily turn off the heating and water

Granny Tanya:

They turn off everything except heat in winter in old five-story buildings (the heating system does not allow it), and each inhabitant invents such miracles that sometimes you are amazed.

Vlad Ternovsky:

99% of the time is complete. if they come with a local police officer, then they will block it 100%, but remotely there are unlikely to be too many nuances

What types of pipe plugs are there?

In just a short time, the range of pipe plugs has increased many times over. Today you can choose products of various shapes and colors to solve any problem, including the decorative design of open pipelines.

Pipe plugs can be classified according to different parameters:

1. In appearance:

round plugs;

oval-shaped plugs;

with a cross-section in the form of a square;

2. By size

(to buy plugs, you need to know not only the length/width/section, but also the parameters of the pipe wall):

plugs for profile pipes (square) are available in several standard sizes (1.5x1.5cm; 2x2cm; 2.5x2.5cm; 3x3cm; 4x4cm; 5x5cm; 6x6cm; 8x8cm; 10x10cm);

rectangular pipe plugs (1.5x3cm; 2x3cm; 2x3.5cm; 2x4cm; 2x6cm; 2.5x4cm; 2.5x5cm; 3x5cm; 4x6cm; 4x8cm);

round plugs are available in standard sizes (Ø2.5cm, Ø4cm, Ø5.7cm, Ø7.6cm);

For pipe products, you can also buy plugs for profile pipes with non-standard parameters.

3. According to design characteristics:

threaded

products are the most popular option for pipe plugs. They are used for installation of water and gas systems. They are made from high quality steel. The catalogs present products with external and internal threaded connections up to 2 inches in size. When installing a threaded plug, special sealants are used (linen thread, FUM tape, etc.). Fastening the covers to various sealants is undesirable, as this will greatly complicate their dismantling if necessary;

flanged

plugs are used for pipe products with a diameter of more than 2 inches. They are a cover that is attached to the pipe with a bolt. Products made of rubber or paronite are used as gaskets (for pipelines with high ambient temperatures);

spherical

plugs are installed in pipelines with special operational characteristics (oil pipelines, gas mains); Standards for spherical plugs for steel pipes are regulated by GOST 17379-2001. They are able to withstand pressure in the system up to one hundred atmospheres;

pneumatic

plugs are used during emergency procedures. Such a plug on a water pipe allows you to cut off the emergency section in the shortest possible time. It is made of rubber, and it has a special cavity for pumping air. A technological hole is made in the damaged section of the pipeline, a pneumatic plug is installed in it, which is filled with air, which leads to reliable closure of the pipe cavity.

4. According to the installation method, plugs are divided into two types:

internal pipe plugs.

Fixation of such products occurs due to ribbed notches. When installing the plug into the socket, they bend and hold it tightly inside. The top end of the pipe at the installation site is closed with a plug cap;

external plugs

perform several functions: they give the pipes a beautiful shape, serve as a support for them and protect them from the ingress of foreign substances. The main purpose of the plugs is to close the end of the pipe, which prevents moisture and debris from penetrating into it. The shape of the plugs can be rectangular, square, or round, which creates conditions for their use as a decorative element.

In addition, the following types of plugs are distinguished:

transportation

prevent damage to pipes during transportation. Made mainly from plastic;

end

designed to prevent blockages or to block an unused part of the pipeline;

plugs for double-walled pipes.

They are used as external ones to protect the end part of straight, flexible and drainage corrugated pipes from dirt, moisture and foreign objects entering the pipeline branches. They are used during transportation, storage and during repair and construction work.

Example of stub symbols.

According to GOST 17379-2001.

Plug 1-60.3×4-Р5 GOST 17379-2001 (plug version 1, D=60.3 mm, T=4.0 mm made of P5 steel);
Plug 57×5 GOST 17379-2001 (plug version 2, D=57 mm, T=5 mm made of steel grade 20);
Plug P 57×5-09G2S GOST 17379-2001 (plug version 2, D=57 mm, T=5 mm made of steel grade 09G2S for pipelines controlled by regulatory authorities).

According to ATK 24.200.02.90.

Plug 1 - 100 - 0.6 - 16GS - 6 ATK 24.200.02-90 (round plug version 1 with a nominal bore of 100 mm for a nominal pressure of 0.6 MPa (6 kgf/cm2) made of steel 16GS category 6);
Square plug 1 - 100 - 0.6 - 16GS - 6 ATK 24.200.02-90. (square plug version 1 with a nominal bore of 100 mm for a nominal pressure of 0.6 MPa (6 kgf/cm2) made of steel 16GS category 6).

What materials are pipe plugs made of?

Plastic pipe plugs

used for sewerage and water supply networks.
By protecting the internal cavity of the open end of the pipe from moisture and debris, they prevent many problems from occurring and extend the service life of pipelines. Read also: Self-tapping screw for concrete without drilling
In general, the main task of plugs is to seal the hole at the end of the pipe. Of course, instead of using a plug, you can weld the pipeline or remove an unused section, but this method will be more labor-intensive and costly. Plastic plugs perfectly seal the end of the pipe. Such products are used in systems for various purposes that are operated at low temperatures.

When installing additional plumbing or removing blockages, a plug for HDPE pipes (pipes made of low-density polyethylene) is the most effective solution. If there is no pressure in the piping system, it can be used as a service hatch. For this purpose, the riser is equipped with special plugs, which provide access to the inside of the pipe to clean it from contaminants. Most often, a polyethylene plug is installed for pipes.

Metal plugs for round pipes

have the same properties as plastic ones. Steel products can be mounted on all types of pipe products. The cross-section of metal plugs ranges from 3.2 to 102 cm. Due to their strength and reliability, they can withstand pressure surges and can be used in systems with high ambient temperatures.

Metal pipe plugs are available in the form of an ellipse, plate or flange. Ellipse-shaped products are made from stainless steel. They are used for pipeline systems in the pharmaceutical, chemical and food industries, since the steel is able to withstand the effects of aggressive environments.

The flange plug has the same properties and can therefore be used in similar areas. Flat plugs can also be installed in the pipeline system, provided that during operation the coolant temperature does not exceed 80 degrees. Products on sale are available in diameters from 5.7 to 102 cm.

For the manufacture of plugs, stainless steel or alloy steel is used. In some cases, high-strength low-alloy steel is used.

Metal plugs for round pipes have some advantages:

resistance to high pressure, temperature changes and aggressive environments;

guarantee of connection reliability under difficult operating conditions;

the ability to carry out dismantling work, regardless of weather conditions.

Chromed metal.

This type of plugs belongs to the expensive segment of products, since they do not corrode and can serve as a decorative element. A chrome-plated metal plug is often used on intake pipes.

Rubber plugs for pipes

serve as protection against debris. They are not suitable as a locking element due to technical characteristics (the plasticity of the material does not allow them to be firmly attached and retain the coolant).

Installing a plug in a pressurized system

The system, which operates under pressure, is assembled from durable polypropylene pipes. Therefore, the plug must not only be airtight, but also strong enough.

Therefore, plastic plugs must be installed on threads or welded. In some cases, the plug is fixed with glue. But if the plug is installed by welding or glue, then disassembling the system will be almost impossible. At the same time, the threaded connection can be easily opened at any time.

If the plug is firmly attached, then the following operations must be performed:

use diffusion welding. In this case, a special tool heats the inside of the plug and the outside of the pipe. Then the plug is pressed firmly onto the pipe;
on glue. Glue is applied to the plug and pipe. Then the surfaces are connected and held for about half a minute.

This way, you get a fairly strong and airtight plug, but it will be impossible to remove it.

What to consider when choosing a pipe plug

To choose and buy pipe plugs correctly, you should take into account many factors:

1. In the first place when selecting, there is a specific feature of the pipe operation:

A plug for a gas pipe is an element on the quality of which the reliability and safety of the gas pipeline may depend. Elliptical-shaped plugs fall into this category. Threaded connections allow leakage even with minimal clearance;

In heating and hot water supply, metal plugs are used. Plugs made from other materials may change their shape and lose strength when heated. The most reliable high-quality pipe plugs are made from metal (plastic and metal-plastic products are suitable for systems with cold water or for systems with low-temperature coolant);

For water supply installations, products in the shape of an ellipse or flange plugs, as well as plugs with a threaded connection, are used. The main requirement for installing these fittings is correct installation.

2. The next stage of choosing a plug is the tasks that the product must solve:

for temporary cutting off of coolant, fittings in the form of a flange and pneumatic plug are more suitable;

for long-term overlapping of systems, metal products with threads or in the form of an ellipse are used;

Decorative pipe plugs are purchased based on aesthetic preferences.

3. When choosing plugs, do not forget to take into account the material from which the pipe itself is made:

a durable metal product is usually used as a plug for a cast iron pipe;

For plastic pipes, plugs made of the same material are used.

4. Pipe parameters are another important factor influencing the choice of plugs:

plugs for round pipes;

plugs for square pipe;

for pipes with a different cross-section, square-shaped products are used only as a decorative element;

For each pipe, the plug is selected taking into account its parameters.

Requirements depending on the characteristics of the pipes

Such parts are selected so that they exactly correspond to the characteristics of specific pipelines. Moreover, both the material and its functional purpose are taken into account.

For example, a gas pipe plug must be extremely strong and reliable. Moreover, gas is slightly superior to water in structure, and this already leads to increased requirements for sealing areas. Regular thread samples or pneumatic plugs will not work on a gas pipe . It is better to install them on water pipes or other pipes.

It is not recommended to use plastic and rubber products for heating systems and hot water pipes, as they can be damaged at high temperatures. In this case, you need high-quality metal.

If it is necessary to block a hole of any type for a long time, use elliptical or flange plugs on the pipe.

The shape and profile of the highway also has an influence. In this case, the main requirement is that the dimensions of the pipe plug and its shape fully correspond.

For example, a plug for a profile pipe 80x80 mm should have similar dimensions and completely cover its profile. Therefore, before purchasing a product for such types of use, you need to make sure that your choice is correct.

Threaded Plastic Pipe Plug

The shape of the edge also affects the mounting requirements of the plugs. Square pipe plugs cannot be attached using threads or flange connections. They can only be welded or pushed mechanically.

Accordingly, it is very important to make sure that with such fastening the part holds well and is able to perform its functions.

Plugs for round pipes are much more functional in terms of application. Which, however, is not at all surprising. After all, pipes with a round profile are used in 95% of cases to equip water mains and supply systems. Here the requirements are not imposed on the type of fastening, but on its quality and simplicity.

Using pneumatic plugs (video)

Tips for choosing

It is almost impossible to name specific universal types or types of plugs. There are too many of them now on the modern market.

Inflatable pneumatic pipe plugs are chosen when you need to temporarily block any type of pipe. They are convenient due to their functionality, since the inflated spherical cylinders take the shape of a pipeline.

Flange and elliptical plugs are most often attached to steel pipes, since they correspond to them in terms of the material being manufactured and the type of construction.

However, if 80x80 pipes are used not as pipeline elements, but as components of metal structures, then in such a situation the choice of conventional end caps will be correct.

Plastic plug caps for metal pipes are used only for transportation purposes, or to prevent precipitation and debris from entering the openings of structures, since they are not capable of properly blocking the channel.

Threaded plugs are good because they are durable and have no problems during installation, but you should only buy them if there is already a thread cut on the inside or outside of the edge. Moreover, this thread must fully correspond to the one that is already on the plug. This refers to the type of thread and its direction.

Plugs for profile pipes

When choosing protective-blocking end elements for profile pipes, be sure to pay attention to their shape. As a rule, profile pipes are not used as water supply, heating or transportation systems.

And they are often used to make metal fences, furniture, fences or frames for equipment. Therefore, a plug for a profile pipe 80x80 mm is first of all assessed by its dimensions and shape, and then by all other factors. Spherical plugs are absolutely not suitable for pipes; rectangular or square ones are required.

It is also advisable to follow the principle that the material of the selected element should be compatible with the material of the pipeline or at least not conflict with it. For example, a plug for a metal-plastic pipe made of plastic will last longer, and it is much easier to install.

How to put a plug on a pipe

Installing a plug in a system without pressure

When there is no pressure, the plug is used to seal the system. Its installation guarantees fixation of the end. To do this, select an O-ring and insert a plug for PVC pipes.

Installing a plug in a pressurized system

For high-pressure networks made from polypropylene-based pipes, plugs are required, which have high strength indicators. To ensure reliable installation, plastic plugs for the profile pipe are mounted using a threaded or welded connection. In addition, PVC pipe caps can be installed with glue.

It must be taken into account that after using welding or modern adhesives, dismantling the plug in the usual way will be impossible; it will have to be cut off. Only a threaded connection will provide the ability to quickly disassemble. For other methods, you need to do the following:

diffusion welding. To do this, you need to warm up the plug itself and the pipe from the inside. The plug is then pressed into the pipe;

installation with adhesive compounds involves applying them to the inside of the pipe and to the plug. After this, fixation occurs for a certain period of time, which is provided by the glue manufacturer.

As a result of the above measures, a reliable and sealed installation of the plug is obtained.

Installation of the plug with further dismantling

If the operational requirements for the pipeline network require the removal of the plug, then it is installed exclusively on the threaded connection. Such plugs are used for inspection channels (for example, in sewer networks).

Now we know almost everything about pipe plugs, all that remains is to purchase the pipes themselves so that we have something to install the plugs on. However, you should not rush and buy materials for installing plumbing and heating systems in the first basement with plumbing that you come across. Plumbing and heating are what make our life in apartments and houses comfortable, and we don’t want this comfort to be suddenly disrupted due to low-quality pipes or fittings that leak at the most inopportune moment. That is why everything related to communication systems should be purchased only from trusted suppliers with a reliable reputation. We offer you the help of specialists, which has been a supplier of engineering plumbing in Russia since 2004.

Read also: Feather removal machine from fairy washing machine

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Our experts are ready to help you choose pipe plugs for both individuals and companies. You just need to contact us by phone:

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Or in the feedback form on the website.

A modern home is unthinkable without communications. Pipes are one of their most common types. Currently, they carry not only communicative functions, but also a decorative and design load. For this reason, the question of how to select and install a pipe plug is very relevant at the moment.

When and why are they used?

The need to kill pipelines most often arises:

when entering utility lines into industrial and residential buildings to prevent foreign objects from getting inside the pipes. Of course, this cannot always be done. The use of metal pipe plugs will be justified if installation of wiring is not planned in the near future. But there is one nuance here too. If sewer pipes need to be shut down in any case, then shut-off valves can be installed on components of water supply systems, including the end sections of tees;
when individual sections of the pipeline are dismantled. Installing plugs for metal (steel) pipes will allow dismantling of individual branches without stopping the operation of the main lines.

Peculiarities

Pipe plugs may seem, at first glance, to be a simple and understandable item. It would seem that there is nothing easier than screwing an end nut onto the water pipe. However, in reality everything is completely different. All fittings that exist today have a number of features.

These simplest elements are distinguished by several characteristics. It is important to remember that even their purpose may vary. Not every terminal element is designed to tightly “jam” highways. In principle, technological, protective and decorative fittings are now distinguished.

Technological ones are those that are necessary sections of the design of a pipeline. Their main task is to jam pipelines. Typically, this variation of the main part is used during the elimination of accidents, according to technical and technological requirements, or to close holes in communications.

Protective options are designed to preserve the integrity of the ends of transported pipes and threads. They are placed on the ends of the transported material before loading.

Decorative variations should first of all serve an exclusively aesthetic function. They are chosen based on the ideas of the overall interior and the design project of the room.

This type of division is very conditional. In reality, there are several established standards for these communications details.

Artificial traffic jams are used for various purposes. Based on the goals, the design is formed and the material of this or that element is determined. These two criteria - material and purpose - underlie the common classification of the end elements of pipe communication systems. The tasks performed act in this description as the first criterion for breaking down the types of pipeline sections under discussion. According to their purpose, there are two types of “plugs” described below:

Transport plugs. Usually made of plastic and used to transport pipe elements and protect them from damage.

End caps. Designed to isolate unused parts of communications, protecting it from debris and other objects.

Based on their appearance and production technology, muffling elements are further divided into four types.

Threaded plugs. A type of “constipation” that is installed on household water and gas networks. Different metals are used in their manufacture. However, they are all equipped with internal or external threads. Small parts are considered the most popular. When installing them, sealant should be used.

Spherical plugs. An option that is used for particularly critical networks (for example, a gas pipeline or an oil pipeline). They tolerate various climatic influences and high pressure very well. Outwardly, such variations look like a metal sphere cut in the middle.

Flange plugs. The appearance is very similar to the lid. They are bolted to the pipe flange. Special gaskets are used to seal the connection. The type of gasket is selected based on the conditions: temperature and pressure in the line.

Pneumatic rubber "clogs". This modern variation is used to isolate a specific section of a highway. They are inserted into the pipe and filled with air at a certain point. The importance of the idea lies in the fact that in order to carry out repair work in a certain area, there is no need to completely decommission the entire existing pipeline. They are very easy to dismantle.

There are two types of stoppers based on the installation method:

Internal parts, for example, plastic, are installed inside the HDPE pipeline. If necessary, they are fixed using special notches. This mount inspires confidence. From the outside, if necessary, everything is closed with a special lid. You can lay laminate on top.

An external plug is installed outside the communication unit. The pneumatic plug can be round or rectangular, as well as from stainless steel, iron materials and cast iron variations. Inflatable plugs are rarely used. It is installed primarily to perform “external” tasks. This includes protecting the structure area from external debris getting inside. But it can also be aimed at closing the end part of a system element.

Plumbing plugs of large diameter can be installed using a device with argon and blower.

Tees. Types, purpose, application

Tees are designed to connect additional branches to the pipe. With their help, complex pipeline structures are created. With one tee you can create up to 3 branches. This element can also be designed for synchronous attachment to the body and neck. In this case, the neck of the fitting is equipped with adjustments.

Tees are divided into two types: transition and equal. According to the production method, they are conventional and combined.

Helpful advice ! For hot water pipes, it is recommended to give preference to combined fittings with smooth stems. A feature of these parts is lower resistance to fluid flow, which determines their increased hydraulic characteristics.

Tees are produced from carbon and stainless steel, as well as from polypropylene. All of them are characterized by very high demand. But special attention should be paid to the metal tee for pipes. Depending on the method of fastening, this element can be threaded or welded. In the first case, the product is screwed, in the second, it is welded to the structure using a special apparatus. It is quite obvious that the use of a threaded element provides savings in labor costs when carrying out repair work during pipe operation.

Materials

Modern industry offers the buyer a huge selection of shapes and materials. This applies to both pipes and the plugs connecting them. As for fittings for the communication system, among them are the options described below.

Metal and chrome plugs

Pipeline fittings made of this material are currently used very widely. They are used to lay water and gas systems made of cast iron and steel. They are ideal for industry. A significant disadvantage of muffling elements of metal systems is their sensitivity to corrosion and rusting.

Plastic and polyethylene plugs

Inexpensive “plugs” made of plastic materials are characterized by high resistance to rust and corrosion. However, they are afraid of sunlight and high temperatures. For this reason, plastic systems are used exclusively for interior work. And they are also well suited for the role of “covers” for the fence. But they are not suitable for sewerage.

Rubber plugs

There is a rubber version of “jammers.” They are unable to securely secure any structure. The reason for this is the plasticity of the material. However, rubber products do a good job of protecting pipelines from debris and dirt.

Do-it-yourself work with pipe plugs

It is worth noting that the assembly instructions will be provided as general and universal. That is, the scheme will be given in a way that everyone can apply in practice, without the presence of any expensive tools and consumables.

So, step-by-step installation of sewer plugs.

On a plastic pipe

In this case, you need to act something like this:

A cork is taken and its outer surface is covered with any plumbing silicone. If silicone is not used, there will not be a truly airtight connection. This means that both odors and noise from the flow of various liquids through the pipes will penetrate into the room. (See also the article Connecting a toilet to a sewer: features.)
There is a special groove inside the pipe outlet - as a rule, it contains a rubber rim, which also significantly affects the level of tightness. So, if such a rubber gasket is missing, then it must be inserted. In principle, an elastic band from any manufacturer should be suitable.
The rubber band is also lubricated with silicone.
The fitting is inserted into the pipe. If the diameter does not match and the part cannot be inserted as expected, then you can try to lubricate it with a small amount of oil and screw it in, as it were.

Blocked metal pipes

Typically, a metal sewer line is made of either cast iron or steel. In the first case, you can try to find a “native” lid at a flea market, but in the second you will have to be smart.

In fact, a plug for a steel sewer pipe is the same standard plug, but the difficulty is that it is difficult to find the required diameter of the product.

Therefore, if you can’t find a ready-made lid, try the following methods:

Make a part from a wooden chopstick, which is treated with silicone or liquid glass. The essence of the method is that if a wooden cork comes into contact with water or is exposed to moist air, the wood will swell. And due to this property, we will obtain the required level of tightness and a strong connection.

Install a hydraulic seal. Essentially, it is just a cement mortar that hardens even when under water. Naturally, you don’t just need to pour it into the hole - first insert something like a lid made of strong polyethylene into the pipe so that the mixture does not flow into the riser before it hardens.

And it’s probably also worth considering how to remove such elements from pipes.

Dimensions

Dimensions also act as a sign by which the ranking of damping elements is carried out. Their range is quite diverse. However, all of them can still be divided into standard and non-standard options.

To purchase a standard version, you need to know the length, width, and cross-section. It is also necessary to indicate the parameters of the pipe wall.

In a situation where standard “jammers” are not suitable, you can choose an option with non-standard parameters.

Fitting selection criteria

The plug is selected according to several parameters:

Material of manufacture. As a rule, PVC fittings are used for metal-plastic pipes, polyethylene for PET, steel or brass for metal. Rubber ones are used as temporary ones.
Diameter, size and shape. The cross-section of the plugs must exactly match the parameters of the communication pipes. In addition, round fittings are used for round elements, and square fittings are used for profile elements.
Purpose. For long-term sealing of the pipe, it is better to buy a threaded or elliptical fitting. If the plug is installed for a short time, it is better to use a flange one. Moreover, it is not recommended to buy rubber and polymer plugs for the hot water system or heating pipes. They change their shape when exposed to high temperatures. As a result, system depressurization may occur. Pneumatic and threaded plugs are not installed on gas pipelines. It is better to use flanged ones here.

Installation

Welding a plug around a pipe can be done with your own hands, if you take into account all our recommendations.

Welding is still considered the most reliable installation option. In this case, you can weld any section of the highway. Correctly performed work guarantees reliable sealing of the pipeline for centuries. This option is not suitable for cases where it is necessary to periodically dismantle.

Jamming a part of a communication system using a threaded element is considered one of the simplest methods. To do this, you need to screw the fitting properly. However, do not forget about the insulating materials, thanks to which the screw connection will be a reliable unit.

Flange fittings are installed using a sealing gasket and a few bolts. The gasket must meet the requirements for temperature restrictions and satisfy the pressure requirements in the system.

Installation of the pneumatic version is carried out in several steps. First, liquid is removed from the desired area. After this, a hole is cut to the size of the plug. The prepared fitting is inserted into the resulting hole and injected with air. Everything is ready, the system is shut down.

Options for installing special artificial “blockages” depend on whether there is pressure in the main line system. In a situation where there is no pressure in the system, the “silencer” performs the sealing function. To a greater extent, this is the task of fixing the end.

If there is pressure in the line, then the situation changes radically. The plugs must be highly durable. Welding or threading is used for installation. For polyvinyl chloride options, special glue can be used.

It is worth noting that after carrying out this work it will not be possible to simply remove the “cover”. In most cases it will have to be cut off.

When to use stubs

For example, plugs can be used for sewer pipes. The element is installed in the following cases:

to prevent debris and other foreign objects from entering the pipe. Most often, a plug is installed when wiring is done. If a shut-off valve can be installed on the water supply system, then plugs are placed on the sewer pipes;
If part of the sewer system is dismantled, then a plug must be installed. After this, it will be possible to disassemble some parts of the system, without violating the integrity of the entire system;
in some cases a pneumatic plug is installed. It is needed to eliminate accidents in various parts of the system of all types of communications. The plug can be installed for a gas pipe or for a water supply.

Description and types of products

They are different. Firstly, by size: large, small and medium.

Secondly, according to the material:

Made of metal;
Made of rubber;
Plastic;
Chrome plated.

For sewerage, it is best to use metal ones. Their endurance and service life are much higher. And this material is most suitable for interaction with water. But keep in mind that it is susceptible to corrosion. Therefore, the use of a special anti-corrosion coating is required. You can also use plumbing plastic products, but their tightness is lower.

Thirdly, they can be divided by shape: round, square, rectangular. It is easy to guess that the shape should match the shape of the pipe.

Fourthly, the following types are distinguished by type of design:

Spherical;
Pneumatic;
Threaded;
Transportation;
End;
Flanged.

Before purchasing a plug, you should visually inspect it for correct shape.

Spherical is suitable for individual areas. They are usually attached by welding. Therefore, for the most part, they are the so-called bottoms of tanks.

Threaded ones are often used in water supply networks. Their price is very low, so they have become widespread. They can be easily removed or returned to their place. But do not forget that their tightness is lower.

Transport means mechanical fastening, that is, in the usual way. They are mainly made in the form of a cap and are used when transporting pipes. End products are similar.

Flanged ones are attached using special rivets. Installation is quick and easy. The advantage is that they can be easily removed or put back.

Another type is lattice. It is installed at the intersection of several pipes. This plug serves as a kind of filter. Ideal for fan pipe.

Parts used by utilities

As practice shows, one of the most effective means of dealing with citizens who do not want to pay for utilities is to install plugs in the sewerage system. The advantage of this solution:

You can block access to the sewerage system within a few minutes, and there is no need to enter the apartment of a person who has a debt;
the installation of such a plug does not in any way prejudice the residents of apartments located along the riser;
When using this measure, the likelihood of damage to the riser or other plumbing equipment is zero.

How it works? Very simple:

installation is carried out in the attic or on the roof, the craftsmen do not need to ask the debtor to let them into the apartment;
the device is lowered down the riser on a cable to the required floor (monitoring is carried out using a video camera);
the plug is inserted into the outlet hole and inflated with air;
After installing the plug in the apartment, it becomes impossible to drain water.

Advice! There is no need to go as far as installing a plug. Even if the family is in financial difficulties, you should contact the management company and draw up an agreement on debt restructuring.

Can I remove the plug myself?

Of course, the easiest and safest way to get rid of the plug installed by utilities that blocks the exit to the riser is to pay off the existing debt. In this case, the specialist will remove the installed plug in just a few minutes. But some residents try to remove the obstacle themselves. “Craftsmen” advise using two methods:

chemical;
mechanical.

I would like to warn you that the riser blocking the lumen is made of the same material as the pipe itself. So, if you try to dissolve it by introducing caustic substances into the sewer, it can lead to the destruction of the pipes. And subsequent repairs may require investments that will exceed the amount of debt.

The second method of removal is mechanical. You can try to push the plug further along the riser using a plunger or a plumbing cable. But this method also has disadvantages. After such an operation, the likelihood of blockage in the public sewer system increases. Of course, this will not be a problem for a single apartment, but for the entire house, but it is unlikely that the neighbors will be delighted when the cause of the blockage is found out.

So, plugs for sewer pipes are installed for different purposes. But the function of this part is the same in all cases; it blocks the movement of fluid flow. It is quite possible to install a plug on a pipe or an open branch of the riser yourself; it is a fairly simple job.

Types of plumbing

Before installing outdoor water supply, it is recommended to decide on its type. Depending on the methods of transporting water to the final facility, the water supply network can be technical. In this case, water is used only for production. You can't drink it. To save money, technical networks are partially cleared. This allows the waste water resource to be reused.

The fire network is being set up for fire extinguishing. Such systems are equipped with special equipment and a hydrant. If it is necessary to save money when performing installation work, the fire system is combined with a technical, household or dead-end circuit. To carry out installation work, it is necessary to follow the principles of fire safety. Therefore, before laying the pipeline, it is necessary to obtain permission from the relevant authorities. Installation work is carried out independently or with the help of professionals.

To use water in everyday life, a household system is installed. Water supplied under this scheme is used for drinking. Before laying the pipeline, a plan for the initial purification of the liquid is developed. For this purpose, special stations or filters can be used.