What is the size of 11 8 copper pipes. Copper pipes inch

Copper pipes are used in the construction of pipelines. They constitute a serious competition with metallic and plastic products. Conforming GOST, copper pipes are used in hydraulic and refrigeration equipment, for transporting gas and compressed air, in hydraulic and refrigeration systems. This is caused by the features of copper: durability, resistance to corrosion and chlorine, impermeability for workers fluids, including oils and fats.

What differ copper pipes

Characteristics and type of pipes are determined by the scope of application. They differ in cross section and dimensions, dozens of other characteristics.

View of copper. In household equipment, pipes from the following varieties of copper are used:

In contrast to the thermal processing of pipes, annealed stronger and easier to install.

Section. In addition to the standard square section, the copper pipes are made rectangular and flat. Products with a rectangular cross section due to non-standard form is more difficult in the manufacture. They are used in the manufacture of stator winding conductors for electrical machines cooled by the liquid method.

Purpose. The scope of application determines the characteristics of copper pipes. They are used in the following areas:

• in water supply systems, heating, gas transportation;
• in household and industrial air conditioners, refrigerators, freezers;
• in heat pumps, heliosystems, heat exchangers;
• in radar equipment;
• in the production of tissue shafts, crystallizers, induction coils.

Materials manufacturing, standards. Pipes are manufactured in accordance with Russian standards - GOST, TU - and overseas - EN, ASTM. For production, copper alloys of different brands are used, including doped with other materials (zinc, tin, aluminum, etc.) and oxygen-free alloys with phosphorus content. It uses copper of different degrees of rigidity, determining the purpose of copper pipes:

• Soft. Used in the "radiation" distribution systems.
• Emirates. To change the geometry of such pipes, tube bending is used.
• Solid. Used in highways with increased strength requirements.

Type of insulation. Copper pipes have isolation of different types. Some of them are supplied without insulation, others - with insulation made of the following materials:

• PVC. Such insulation is resistant to mechanical, chemical exposure. Prevents the emergence of corrosion processes.
• Foamed polyurethane. Thermal insulation is applied in the factory. Used on copper pipes intended for pipelines with high heat resistant requirements.
• PE (polyethylene shell). Used on copper pipes intended for drinking water supply systems, heating.

Method of installation. Copper pipes are connected in different ways. Sometimes it uses the filling capillary solder, in which the ends of the pipes are preheated. More often for installation uses fitting compounds from bronze and brass. The compounds are the following types:

• self-default;
• threaded;
• flange compression.

For all of them there are different fittings of standard sizes, suitable for all types of copper pipes.

Dimensions and diameter of copper pipes

Pipes with a diameter of 10-22 mm use the greatest demand - they are used in water supply systems. Pipes with a diameter of 32-42 mm are used in draining systems.

Typically, the diameter of copper pipes is designated fractionally, for example, 14/1. In accordance with GOST, such a designation determines the outer diameter of copper pipes and the thickness of the walls in millimeters. Pipes 14/1 have an outer diameter of 14 mm, internal - 13 mm, wall thickness - 1 mm.

Supply of copper tubes

For whatever goals, you need copper pipes, you can order you can in UGMC-OCM. Pipes are manufactured at the Maidapek (Serbia) and Kolchugzvetmet (Kolchugino) factories, correspond to international standards and are used in domestic and industrial equipment, including water supply, heating, air conditioning, etc.

Delivery is performed by batches of at least 300 kg. Thanks to the presence of warehouses in three cities of Russia (Kolchugino, Kirov, Revda), urgent delivery of products is possible.

Despite anything, the copper pipes were and remain among the most sought-after materials for the construction of pipelines of various purposes, along with metal, plastic and other types of products. According to GOST copper pipe, it can be used in many branches of the economy, which is due to the peculiarities mostly the copper itself, as well as the technology of seamless production of pipes.

This article will give a general characteristic of copper pipes, their properties and some features of the installation will be announced.

Copper pipes of various diameters

Characteristic of copper pipes

Copper pipes do not react and practically completely impenetrable for working fluids of various types and in particular for oils, fats, herbicides, insecticides, bacteria, viruses and other substances.

As for chlorine, which can be contained in tap water, it not only does not destroy copper, but also contributes to the formation of a protective oxidative layer that gives the pipe even greater strength and resistance.

Like plastic pipes, copper products are good in that it is practically not subject to growths on the inner surface of various organic and inorganic substances - a lime flap, etc. According to GOST pipe copper capable of successfully operating in a wide range of temperatures (-200 ... +250 degrees), showing high resistance to temperature drops and having a low thermal expansion coefficient.

Copper pipe 1/4 inch with a diameter, along with products of other sizes, is enough plastic. Due to this, the level of safety of copper pipes for water supply becomes higher: pipes made of copper during freezing of water in them do not lose integrity and tightness.

In contrast to plastic pipes for heating or water supply, the copper is not afraid of the effects of ultraviolet and paint for copper pipes, coming on sale, is applicable to the pipeline suitable under the surrounding conditions of the appearance than to protect.

In addition, to increase the attractiveness of the appearance of pipes from copper, having a specific color, today a special chrome pipe made of copper is produced.

Pipe chrome copper 5/8 for outdoor broach

The pipes of this type have a minor coefficient of roughness, smaller in comparison with metallic and even polymer pipes, and this in the same conditions allows you to apply a copper pipe of a smaller diameter.

In the production of pipes and fittings, phosphorodoxidized copper containing Cu + Ag\u003e 99.90% and phosphorus (residual content) is used, containing Cu + Ag\u003e 99.90% and phosphorus (residual content) 0.015-0.040%. This CU-DIN 1412 copper brand is easily welding and soldered, has elevated anti-corrosion properties and does not lose physical properties (plasticity, hardness, etc.) in long-term operation.

Copper pipes - GOST 617-19 melted at a temperature of 1083 degrees. All this causes the duration of the service life of copper fittings and pipes, which is 50-80 years.

Under dry air conditions, such pipes are practically not oxidized if moisture and carbon dioxide appears, a green film may form on a metal surface.

Among other things, in contrast to steel and cast iron, the weight of pipes from copper is very insignificant, which also significantly simplifies the gasket of pipelines of this type.

Mass or simply the weight of the copper pipe, if necessary, can be calculated by the formula:

• Q \u003d (d - s) * s * π * γ / 1000
• where q is a mass on the pipe bearing meter;
• D - its outer diameter in millimeters;
• S - wall thickness also in mm;
• π - constant, equal to 3.14;
• γ - copper density is 8.9 kg / l.

For example, the weight of the pipe copper 12/1 long in 1m will be just over 300 grams.

Scope of copper pipelines

The use of copper pipes are very numerous.

The most often such pipes are used in the following systems:

• in heating pipelines;
• in water supply systems (both hot and cold);
• in pipelines transporting gas or compressed air;
• in the Freon feed systems in the equipment of the refrigeration type;
• in hydraulic systems for supplying oil;
• in fuel pipelines;
• in condensate removal systems;
• when connecting process equipment;
• in air conditioning systems and others.

1/4 Copper pipe applied to connect an external air conditioner unit with internal

Types of copper pipes

Varieties of pipes according to the method of manufacture

Not only the sections and the size of the copper pipes are different.

In household type systems, as a rule, use pipes from copper two types:

Annealed products are subjected to annealing (special heat treatment), as a result of which the pipes acquire softness. The strength quality of the pipes are slightly deteriorating slightly, while the installation of copper components becomes much simpler.

The supply of annealed copper pipes is made by segments of several tens of meters long (usually 2-50 m), rolled into the bay. Annexed type tubes are implemented in the form of direct segments from one meter to several, usually 5 m in length.

In the form of a section, in addition to the classical form, there are also copper rectangular pipes. Such products are usually intended for the production of conductors of stator windings of electrical machines, the cooling of which is performed by the liquid method.

Copper pipes of a rectangular section, due to non-standard of their form, are complex in the manufacture, from which their cost in comparison with ordinary pipes is higher.

Copper Pipe GOST 16774-78 rectangular sections

Dimensions and designations of copper pipes

Copper pipe is 1/2 inches, as well as products of other diameters of an inch calculus system, in modern interpretations are increasingly measured in millimeters.

So, tangible demand today use pipes with diameters from 10 to 22 mm for water supply systems, from 32 to 42 mm - for draining systems.

In addition, a new regulatory designation of pipe sizes appeared in everyday life: if earlier 1/4 copper pipe was identified only by external diameter (1/4 inches), now the fractional designation, for example, 12/14 describes the pipe diameters - external and internal - in millimeters.

Officially, the GOST copper pipes are designally, where the numerator indicates the external diameter of the pipe in millimeters, and the denominator is on the thickness of the wall. Pipe 14/1 is a pipe with an outer diameter of 14 mm, internal - 13 mm, the thickness of the wall is 1 mm.

The next type of NF ZZZ 07 Russia is 12 x 1 A 617-19 and will mean the following: ZZZ - Manufacturer Note, 07 - manufacturer's factory number, Russia - Manufacturer Country, 12 x 1 - Outer diameter and Pipe wall thickness, 617-19 - Copper pipes GOST.

Copper Pipe Mount Features

Before mounted copper pipes, perform the required measurements and cutting into the components. The pipe cutout should certainly be smooth, for which a special pipe cutter should be used.

Copper Pipe Connection Methods

The threads on the pipes from copper are not applied.

The pipe connection is made in two ways:

The most common due to its effectiveness is the capillary soldering method. Using soldering, reliability and complete tightness of the pipe connections are ensured. Copper square pipe, as a rule, is connected in this way.

Performing brassing copper pipes

The capillary soldering is usually performed using seven and fittings. This method of the pipeline device is successfully applicable when the pipe operation is planned under high temperatures.

Compound pressing is performed using various types of fittings, including self-locking and compression. In addition, special flanges and screed clamps can be used. The pressing method is applicable in cases where the impact on the open flame pipeline is excluded.

Fittings for connecting copper pipes

Copper pipes are connected to each other by crimp and fifts.

Fittings for crimp type are usually made of brass. Tightness of the attachment This element provides due to the crimp ring located inside the fitting. The tightening of the rings are performed by the connective nut manually or with a wrench.

The crimping fitting can be connected to a 1/2 or product of another diameter at the point of installation of the pipeline, where there is always access to the tightness of the compound. Such fittings usually connect pipelines, designed for insignificant pressure, while fittings require periodic control and suspenders.

The technology of compounding fitting with a copper tube is as follows:

1. The fitting is to be disassembered to the components.
2. A clamp nut and crimp ring are put on the pipe.
3. The end of the pipe with a crimp ring and nut is inserted into the fitting.
4. The nut is dragged to the stop manually, while the cone-shaped ring should enter the conical part of the fitting without distortion.
5. Next, the nut is tightened with a wrench by 0.5-1.25 turns depending on the diameter of the copper pipe.

Copper KME pipe can be connected to another pipe with brass fittings and toolkit

With an excessive strong tightening, the crimping ring can simply cut through the pipe wall. No need to overdo it.

It should be remembered that such a connection is not a standard of reliability. It is crimping fittings that are subject to leaks more often than others. For this reason, constant monitoring of the integrity of such compounds will be required.

Connection of copper pipes with pipes from other materials

Copper pipe 3/8, as well as products of other diameters, in hot and cold water pipelines can, without the risk of corrosion development, connect with a brass tube, steel, plastic.

As for the compound with galvanized steel, then both the profile and the pipe of the circular section are afraid of such combinations. The reason for this is the occurrence of active electrolytic processes, which flow between zinc and copper.

You can connect the pipes of this type only by means of brass fittings, while the water current must be carried out from zinc to copper, and in no way.

Products of various diameters, for example, 3/8 copper pipe are very effective, as for their durability. Featuring modern copper pipes for a household pipeline, you will certainly be satisfied with the choice.

Copper pipe: Features of sizes, diameters 1

236) Copper pipe: Features of sizes, diameters 1/2, 1/4, 3/8, 5/8, GOST, What is profile, rectangular sections, chrome products, weight.

What sizes of copper pipes are, which diameters are more often used

Copper pipes are still in demand when laying communications of the most detailed destination, despite the fact that plastic pipe products have been very popular in recent years. This is due to the presence of special properties from copper products.

Features of copper pipes

This products are manufactured based on seamless production technology. Material for copper products does not enter into chemical reactions, it is impenetrable for various types of liquids, such as fats, oils, does not contribute to the reproduction of viruses and bacteria.

It is known that chlorine contains chlorine in tap water, but it does not contribute to the destruction of copper pipes, and promotes the formation on their inner surface of the protective layer relative to oxidative processes, which gives pipelines an increased stability and strength.

By analogy with plastic products on tubular products from copper, highlights from all kinds of sediments are almost not formed, for example, such as a limescale. According to the provisions of the GOST, the copper tube can be in working condition at temperature mode in the range between -200 and +250 degrees. These products are very resistant to the sharp temperature difference, since they are characterized by a small amount of thermal expansion coefficient.

Copper pipes in the case when water freezes, remain integer in hermetic condition. Unlike plastic tubular products intended for water and heat supply, copper products are not dangerous ultraviolet. They are painted not so much to protect the pipeline, how much to give it a corresponding appearance. To date, to increase the attractiveness of copper products, chromed products produce from this material.

Since such pipes are characterized by a small rashness indicator compared to products from metals and polymers, in equal conditions, you can lay a smaller pipeline.

Features of production

For the release of pipes and fittings, phosphorodoxidized copper uses, as part of which contains Cu + Ag\u003e 99.9%, and phosphorus 0.015-0.04%. The CU-DPH material brand according to DIN 1412 for the production of copper products has excellent anti-corrosion qualities, with long-term operation, retains physical properties, such as hardness and plasticity, without a problem, is amenable to soldering and welding processes.

Copper pipes produced on the basis of GOST 617-19 can be melted at 1083 degrees. For this reason, the duration of the life of products for creating pipelines from copper reaches 80 years.

If there is moisture and carbon dioxide on the surface of the pipes, the formation of a green film is possible. If the air is dry, they are almost not amenable to oxidation processes.

You can find an indication of the size of copper pipes in inches and mm. The weight of pipe products from copper compared to steel and cast-iron products is considered small, and this circumstance makes the work on the construction of the pipeline simpler.

To calculate the mass of such pipes, the formula is applied:

Q \u003d (d - s) xs x π xγ / 1000,

where q is the weight of the route of the product;

D - its outer diameter;

S is the wall thickness indicated in millimeters;

π - constant, equal to 3.14;

γ - copper density, component of 8.9 kg / l.

Scope of applying copper pipelines

The area of \u200b\u200buse of copper pipe products is extensive, but most often it will be activated for laying:

• heating systems;
• pipelines to ensure water supply;
• highways, which move compressed air or gas;
• fuel pipelines;
• condensate systems discharge;
• constructions for connecting technological equipment;
• freon feed pipelines in refrigeration units;
• air conditioning systems, etc. See also: "What copper pipes for air conditioners is better to use - characteristics and installation methods".

Methods for the production of copper pipe products

The dimensions of copper pipes are different. During the arrangement of household systems, it usually use products from copper two species:

The first type of pipes are sold by straight segments, having a length of 1 to 5 meters.

In the second case, the product is undergoing thermal processing - they are subjected to burning, after which they become soft, and the strength characteristics are slightly decreasing, but the installation of copper fittings becomes easier. Consumers Annealed pipes sell cut length from 2 to 50 meters packed in the bay.

In addition to round-seen products, manufacturers produce rectangular products. Such pipes due to their non-standard form are characterized by the complexity of manufacture and therefore their cost compared to conventional products is higher.

Copper pipe designations and their diameter size in inches and millimeters

At present, the copper pipe is most often an inch (half-wing, ¼ inches, etc.) is measured in millimeters. Products having a diameter of 10 -22 millimeters are the greatest demand for the arrangement of water supply systems, and 32 -42 millimeters for sewage pipelines. See also: "Dimensions of pipes in inches - how to distinguish from size in millimeters."

You can use a special table - the diameters of the copper pipes in it are indicated both in inches and in millimeters.

After the appearance of the modern normative designation of copper pipes, they are now identified not only by outer diameter, for example, ¼ inches, but also internal. Products have fractional characteristics - 12/14, expressed in millimeters.

According to GOST, the parameters of these pipes indicate in the form of a fraction, where the numerator means the outer diameter of the product, and the denominator is the wall thickness expressed in millimeters. So pipe products 14/1 are produced with an outer and inner diameter equal to 14 and 13 millimeters, respectively. In this case, the wall thickness is 1 millimeter.

Suppose you need to know the sizes of the pipe of the copper inches - its outer diameter is equal, according to the table, 33.5 millimeters, and the equivalent -25 millimeters.

ZZZ - company - manufacturer;

08 - Number of the manufacturer's enterprise;

Russia is a country in which products are produced;

12x1 - the sizes of the external section and the thickness of the wall;

617-19 - Copper pipes in accordance with Goste.

To find out the diameter of the copper pipe in inches and mm, the calculation is performed as follows:

1. The value of 1 inches, as mentioned above, is 25 millimeters (or rather 25.4).
2. When the pipe is 1/4 inches, then 25 is multiplied by ¼ and get 6.25 millimeters.

Mounting Copper Pipeline Feature

Before proceeding with the creation of a copper pipeline, you should make the necessary measurements and cut pipes into pieces. The product cut should turn out to be smooth and therefore uses a special cutter. By the way, the threads do not do on copper pipes.

The connection of individual sections of the copper pipeline can be performed in the following ways:

The most efficient of them is the docking using the capillary soldering technology, so it has become more distribution. This method ensures reliability and absolute tightness of pipes of pipes. Copper products of square cross sections are connected using capillary soldering, which is performed using fittings and rasters.

This method of laying pipelines from copper components involve when the highway plan to operate in conditions of extremely high temperatures.

Pulling method of pressing provides for the use of different types of fittings, including compression and self-locking. Also involve special flanges and clamps that provide a screed. Pressing is used in cases where open flame can not affect the pipeline.

Fittings for copper pipe products

For laying copper pipelines, the fittings of the crimping or babber type will use. The first type of connecting elements is usually made from brass. The tightness of such a docking is ensured by the presence of a crimp ring exist inside the fitting, which is tightened by a wrench. The crimping fitting is combined with pipes of different diameters at the place of the pipeline laying, subject to the availability of access to check the tightness (more detailed: "Which crimping fittings for copper pipes are better to use, the rules for choosing compression fittings and installation").

Such details usually use, if necessary, lay a highway designed when the working medium moves under low pressure. At the same time, in the process of functioning of the pipeline, it is necessary to periodically monitor the condition of the fittings.

The connection process is performed in the following sequence:

1. Fitting is disassembled into components.
2. The clamping nut and the crimp ring are placed on the pipe.
3. The end of the pipe on which there is a ring and nut, insert into the fitting.
4. The nut is fixed until it stops, and the cone-shaped ring you need to insert into the conical part without skew.
5. The nut is tightened with a key to 0.5-1.25 turns - which depends on the diameter of the pipe used.

Performing work, the main thing is not to overdo it, because when you are too applied, an applied force can damage the wall of pipe products.

The above compound type cannot be called flawless - crimping fittings often give the leakage, so their state should be constantly monitored.

Docking pipes made of copper with other materials

When laying communications from copper pipes, they can be shown with pipe products made of plastic, steel and brass. Regarding compounds with galvanized products, specialists recommend avoiding such combinations, since the likelihood of chemical processes between the two elements - copper and zinc is high.

When docking pipes of this type, brass fittings are used - they are assembled so that the movement of the water flow occurs in the direction from zinc to copper.

Modern pipe products made from copper is distinguished by durability and therefore such a water supply will be an excellent choice.

Copper pipe for air conditioners: Size table, types

In connection with the intensively growing demand for air conditioners, the demand and consumables for the installation are increased. As a rule, it uses copper tubes. Why cops? The answer is simple. This metal is one of the most resistant to corrosion. Of course, there are alternatives - aluminum, various polymeric materials. But the qualities inherent in copper only, they do not possess.

It happens that producers of this technique, comes with a copper air conditioning and tube. But in most cases, all associated elements have to be bought separately. It would be more correct to entrust their selection by a specialist. But the Customer should also own information about the properties and features of such details in order to avoid mistakes when purchasing them.

The scope of the copper pipe is quite extensive. It is used for transportation and supply of caustic liquids and gases. Other types of metal can not compete with copper. That is why they are used to supply the cooling reagent from the external block to the internal installation.

Distinctive properties

In addition, copper pipes for air conditioning are capable of withstanding high pressure. So that they can have such strength, an annealing procedure is performed. That is, metal processing is high, up to +700 degrees Celsius, temperatures.

After this procedure, the natural properties of copper are somewhat transformed. Copper pipe for air conditioners becomes less strong on the gap, but the plasticity acquires and begins to stretch perfectly. It will be twice as long as it breaks, and easily, at a certain angle, is short. This makes it possible to give this item any configuration, which makes it easier for the installation procedure.

The strength of the an improved pipe is 220mP. Its release is regulated by GOST P52318-2005, according to which the copper should not be impurities more than 0.1%. Seamless variants are the greatest value. Their walls are very smooth, which contributes to increasing the capacity of the pipeline. A relatively low weight gives some advantage when installing and operating. By the way, the pipe copper for air conditioners can serve longer than the air conditioner itself, several dozen years.

Table diameters

Small section Allows you not to make big holes in the wall of the building during broken. Depending on the power of the aggregate, the diameter varies. The list of diameters produced is below:

The higher the capacity of the air conditioner declared by the manufacturer, the greater the amount of refrigerant should pass through the tubes. Yes, and the distance between external and inner blocks is different. Therefore, the size of the copper pipe for air conditioners is also different. This is due to their length. Typically, copper tubes are supplied in the Bays of Metrah 15; 25 and 50 meters.

But some manufacturers still at the factory cut them on a rod with a length of 2 meters, setting plastic plugs at their ends, to avoid falling inside garbage and moisture. If a person who bought air conditioning wants himself to install it, he does not need a whole bay of the pipe. Bays use specialists who are massively engaged in installing air conditioners.

As in any external engineering systems, thermal insulation is required. It is necessary to avoid clusters of condensate, overheating or freezing of the transported liquid or gas. Usually for these purposes, special protection from foamed, non-porous rubber or polyethylene is used. Produce it in the form of two-meter tubes of black color.

Their thermal conductivity is L (0 ° C) \u003d 0.036 W / MK. Insulation for copper air conditioning pipes is able to protect them when spreading temperatures from -150 ° C to + 150 ° C. In addition, very thin walls of the copper pipeline may lose temperature that dramatically increases the consumption of electricity and refrigerant during the operation of the split system. Usually, thermal insulation is sold complete. If not - it is necessary to purchase it separately and be sure to install.

When installing usually do not use tools for cutting metal. This warns chips entering when cutting, in the cooling system. The chips may well score a hole of the tube and deduce the air conditioner. That is why two main attachment methods are applied: the connection with the help of fittings and a brand of copper air conditioner pipes. Solder has a low melting point, which gives the opportunity to do when docking the tubes with a conventional gas burner.

Copper is by no means cheap metal, it is used only where such expenses are justified. This is not just installing cooling and air conditioning systems. This metal, referring to the color category, is practically no oxidized. It is not afraid of contact with other metals, and therefore is widely used both in the chemical and food industry and in mechanical engineering.

• Application:
• Plumbing
• Heating
• Warm floor
• Sewer
• Smoke
• Voditary
• The form:
• Profile

Copper pipe for air conditioners: Table diameters, views

Copper tubes are the basis for safe and long exploitation of air conditioners. The main diameters (sizes), types and properties.

The appearance on the market of many budgetary analogs - pipes from metalplastic and PPN (polypropylene), did not cause the loss of popularity with copper pipes, which are still universally used in the arrangement of heating systems.

This article presents copper pipes and fittings. We will consider sizes of pipes and types of fittings, perform their comparison with polypropylene analogues and study the technology of combining products under the soldering, compression and pressing crimping.

Building articles

Marking copper pipes

Copper pipes for heating are manufactured according to the provisions of GOST No. 617-90 "Copper Pipes". Products have a unified type labeling DKRNM 28 * 3 * 3000 m2 b, wherein

• D - method of manufacture (, g - extruded);
• K - round section;
• N is the accuracy of the manufacture normal (P - elevated);
• M - soft (P - semi-hard, T - hard, L is soft with high plasticity, P is semi-hard with increased strength, h - hard with increased strength);
• 28 - outer diameter, mm;
• 3 - wall thickness, mm;
• 3000 - dimensional length length;
• M2 - from copper brand m2.

Copper pipes can be made in a soft or solid performance, which depends on the brand used for the production of alloy. For the arrangement of heating systems, solids are most often used, the use of soft pipes is rational only when installing a warm floor, styling which is performed with a large amount of bends.

Sortness and selection features

Solid copper pipes for heating are produced in cuts of measuring length from 2 to 5 m, soft - in bays up to 50 meters long. The wall thickness varies in the range of 1-3 mm, in heating communications, products with walls with 1.5-2 mm walls are most often used.

Consider the overall characteristics of the most sought-after pipe diameters:

• ∅ 10 mm: Mass of the rose meter - 197 g, wall thickness - 1.5 mm;
• ∅ 12 mm: Mass p. - 308 g, wall thickness - 1.5 mm;
• ∅ 15 mm: Mass p. - 391 g, wall thickness - 1.5 mm;
• ∅ 18 mm: Mass p. - 480 g, wall thickness - 2 mm;
• ∅ 22 mm: Mass p. - 590 g, wall thickness - 2 mm;
• ∅ 28 mm: Mass p. - 1115 g, wall thickness - 2.5 mm;
• ∅ 35 mm: Mass p. - 1420 g, wall thickness - 2.5 mm;
• ∅ 42 mm: Mass p. - 1700 g, wall thickness - 3 mm.

Depending on the technology of pipe production, it may be rejected or unnecessary. Products that have not passed thermal hardening have a greater mechanical strength (they are able to withstand pressure up to 450 bar) But less elasticity (almost never bend). Past annealing (heating to high temperature and subsequent cooling) pipes, on the contrary, more plastic and less resistant to deformation.

A few words about choosing the diameter of pipes. It must correspond to the diameter of the boiler feed hole (on the first branch), and on each subsequent branching, it is necessary to use products with a diameter of 1 pitch of the dimensional mesh less than in the previous one - this approach will ensure the absence of pressure losses at all stages of coolant circulation.

For example: the diameter of the pipe was connected to radiators - 20 mm, the diameter of the vertical laying of wiring - 22 mm, the diameter of the main feed line - 24 mm. The channel "reversal" is assembled in a similar way, but the diameter varies from greasy to the smaller.

Advantages and disadvantages, comparison with analogues

Copper pipes for heating have an alternative, which are. We study the advantages and disadvantages of the options in question and determine which one is better to use:

• the service life of copper pipes reaches 100 years, while polypropylene serve no more than 30 years (operational resource directly depends on the use mode - with increasing the temperature of the coolant above the allowable polypropylene loses strength and deform);
• both options have minimal weight and fairly simple connection technology (for docking uses the soldering method or shaped fittings;
• copper products have a temperature maximum of 250 degrees, polypropylene - 95 degrees (can carry a short-term increase in temperature to 110 0);
• both copper and polypropylene pipes have high corrosion resistance under the influence of water and high humidity, but copper is a conductive material and it must be protected from wandering currents, under which it can accelerately corroded;
• polypropylene pipes breaks when the coolant is freezing, while copper, due to the high elasticity of the material, remain integer;
• copper and polypropylene products have perfectly smooth inner walls, on which the flare is not formed, degrading the capacity of the pipeline;
• copper, unlike plastic, does not lose its operational characteristics when exposed to direct sunlight.

However, there are copper products and a number of shortcomings, the main of which is the high cost. For comparison: the price on P.M. Pipes with a diameter of 18 mm is 400 rubles, while the polypropylene analogue costs 60 rubles / pm. The copper fittings used to connect the pipeline are also different.

Copper is a rather soft material subjected to abrasive erasing under the influence of mechanical particles being inside the coolant. To avoid this, the pipeline must be equipped with a filtering device. Consider that copper pipes cannot be connected to products from other metals - steel, aluminum or stainless steel. This is fraught with activation of electrochemical reactions, as a result of which the pipeline begins to rust accelerated. The only metal with which copper is compatible - brass.

Copper pipes in heating systems (video)

Fittings for connecting copper pipelines

Copper fittings - shaped elements by which individual parts of the pipeline are joined with each other. Fittings for copper pipes are available in the following configurations:

• parallel couplings;
• tees;
• corols (for 45 and 90 degrees);
• cross.

The above copper fittings may be one-dimensional - to connect pipes of the same diameter, or transitional - to connect different parts of the pipeline.

Pike fittings

Connecting products intended for docking by the soldering method are called capillary. Their inner walls are covered with a thin layer of tin solder - melted solder fills the gap between the walls of the connecting products and after harvesting firmly unlocks them.

Wednesdays of high-quality products for soldering Menting Sanha fittings. This company produces copper fittings of all common sizes according to German quality standards from the CW024A brand alloy. Connections Ways to withstand pressure in the range of 16-40 bar and the operating temperature of 110 degrees.

The technology of connecting copper pipelines by the soldering method is quite simple:

1. The connecting surfaces of the pipe and fittings are cleaned of contaminants, degreased and treated with fine-grained emery paper.
2. A layer of low-temperature flux is applied on the walls of the pipe to 1 mm thick.
3. Connecting elements are suitable among themselves, after which the place of the joint warms up with thermofen or gas burner to temperature 400 0 for 10-15 seconds.
4. The junction cooling time is waiting, after which the flux residues are cleaned by rag.

The solder is necessary in a ventilated room, since when melting solder and flux, harmful gases are distinguished.

Canguage compounds

Cangovy, they are compression fittings for copper pipes, perform a serviceable connection to be dismantled. All are classified into two groups:

• "A" - for products from solid and semi-solid copper;
• "B" - for soft copper pipes.

They differ in the fact that the fittings of the class "B" have an inner sleeve - a fitting on which the connected areas of the pipeline are planned. The fitting acts as a reference element that prevents the deformation of copper walls during the burning.

Connection Mounting Technology:

1. On the pipe dresses a cape nut and a split ring.
2. The ring is located at a distance of 1 cm from the cut.
3. The pipe is satisfied with the fitting fitting.
4. The cape nut is twisted manually until it stops, after which it is reached with the help of an adjustable or horic key.

Press connection

For copper pipes consist of a housing, fitting and crimping sleeve. Their installation occupy the minimum of time - the connecting portions of the pipeline are inserted into the fitting socket on the fitting, after which the sleeve is crimped using press ticks. This tool can be rented in a plumbing store or buy prices start from 3 thousand rubles.

Such a connection is maintenance-free, unlike the collet joint, you will not be able to disassemble it without violating the integrity of the fitting. In the case of leaks, it is necessary to replace the connecting element. Note that the press fittings are the most reliable and durable, their service life comes to 30 years.

In the assembly of heating contours of copper pipes, not too often. Their cost is not too attracting owners of private houses and owners of apartments. However, if the installation is performed correctly, the high cost of the copper pipeline will pay off by many years of operation without repair costs.

We will tell about how to competently pick up copper pipes for heating. In the article submitted, the labeling features are given, the methods of connecting components are described. Independent owners, we will find instructions on the assembly of heating systems.

There are two large groups of copper pipes: Tolstown and thin-walled. Pipes included in the first group have increased strength characteristics. Produce them in seamless and welded ways.

Pipes of the second group found use in ship and automotive industry, aviation, i.e. Where communication systems should have low weight and greater strength. The coupling pipe cross section can be both round and rectangular, square. In the heating systems, profile pipes are usually not used.

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Although copper pipes are known for their strength, but calmly withstanding pressure jumps, temperature drops, multiple freezing, they are poorly opposed to mechanical effects. Therefore, paving the pipeline should be provided for protection against shocks.

Such a coolant as water contains sand, other suspended particles. The result of their impact on soft copper is erosion. To avoid this phenomenon, the system needs to include water treatment filters.

The operational capacity of the pipes has influence and water rigidity. The magnitude of this indicator in milligrams is below 1.42 and above 3.1 significantly lowers their longevity. It is explained by the fact that chlorine, dissolved in water, reacts with an oxide film present on the walls of the pipe. The result is a strong protective armor.

In case of inconsistency of water rigidity indicators, this protective layer begins to collapse, then due to the presence of chlorine, its regeneration occurs. If this process is repeated multiple times, the copper resources are depleted.

Connecting a pipeline, overheating should be deleted, which adversely affects the strength. Flux that remains after soldering, it is necessary to delete because it can cause corrosion.

If you want to bend a copper pipe, you need to use a special tool for this. Unsuccessfully bent pipe once can be corrected, and then it remains only to remove the crumpled area.

The ideal option is the installation of the heating system from the same pipes. If for some reason it does not work, you need to use transient fittings - brass or bronze. Adapters from other materials cannot provide electrochemical compatibility.

Copper pipes can be installed even at very low temperatures, so such a heating system is a rational solution for the regions where cold weather is a normal phenomenon.

So that the pipes from other materials are not correoded under the influence of copper, a certain sequence of compounding such a combined pipeline relative to the water flow vectors is needed. Copper pipes need to be installed after elements made of other metals.

If planned with pipe laying inside the wall, you need to use copper pipes in the plastic shell. It will not only perform the role of thermal insulation, but also will protect the metal from destruction. Purifying effects have a pipe from copper and wandering currents.

Pulling copper pipe

The compound of copper pipes is carried out by different methods. The most popular 2 approaches to this issue are the most popular: soldering and assembly using compression or press fittings. Basically, all-in-point and conditionally detachable connections are performed.

In such a pipeline, there are practically no additional details, except for the elements with which the instruments are connected to the pipeline. To mount the system, such a method is needed special devices. Without the appropriate qualifications, the connection by welding or soldering is difficult to perform.

The use of fittings facilitates installation, requires less effort and reduces the time of assembling the pipeline. This species connection can be detachable and permanent.

The detachable compound is obtained using self-locking, threaded and compression fittings. This method complicates the design, the connections must be periodically checking, but even a person without experience will be able to perform.

Dear crimp connections

In order for the manufacturers to produce special fittings, which are based on the appointment, methods of installation, the material from which they were manufactured.

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Press compounds are formed using crimping press couplings and curly fittings with an elastomer sealing compactor

To assemble the pipeline with all-in-mail connections installed by crimping, press clamps are needed. They are not necessarily bought for one-time work, you can rent

Press connections refer to the discharge of all-in-block. They are mounted once and no longer disassemble. The service life is equal to the service life of the pipeline

To form a press connection, you can use manual or electrical ticks. Both types of tools are mobile, but for the second it is necessary to ensure power supply or charging battery

Fittings for crimping connections

Perform crimping using press ticks

Press connections in the heating system

Pipeline assembly on object

Based on the destination, the following fittings exist:

1. Taps that are needed for dusting pipes of different sections with angular connections.
2. Crosses, which are also called tees and are used when installing branches from the main pipeline.
3. Couplings used on direct routes for binding copper pipes of different diameters.
4. The collet fittings that are used when installing automation in the heating system.

For copper pipes most often choose crimp fittings from copper, brass, bronze. Sometimes brass fittings are treated with nickel to give them additional strength.

Brass elements for connecting copper pipes are cheaper than copper, and in terms of strength are not inferior to stainless steel. All fittings, regardless of the manufacturer, have the amount regulated by international standards and are interchangeable.

Incomponable is a compression method. Since copper is very plastic, the installation is performed using press fittings and crimping sleeves. By tightness and strength such a connection can be compared with soldering, and it is stronger than compression.

Visually, press fittings are similar to connections for capillary soldering. The difference in the presence of a high-quality polymer sealing ring.

In order to connect the pipes by means of a press fitting, they are cut on the segments of the desired length, the ends are cleaned, calibrated. After, the ends rush into the connector and clamping the joint using special ticks

When installing the heating system using copper pipes of small and medium diameters, the low-temperature soldering is mainly used. Welding is used when the pipes of a large cross section are used. The pressing method is in demand when heated floors.

Compression detachable connections

For the installation of compression fittings there is no need for any special equipment or in the use of open fire. All you need is wrenches, mandrel-calibrator, cutter. To perform such connections, we need collet or crimping fittings.

2 types of compression fittings are found - one having an index A, connect solid and semi-solid pipes, and other index in the index of soft and semi-solid pipes. The fitting includes a hull, a nut crimp, a copper crimp ring, which is flattened at a pressure on it.

Thus, the compound becomes hermetic and resistant to vibratory fatigue. The compound is performed according to the same scheme as when installed press fittings.

The jammed ends of the copper pipe segments are cleaned, with the help of the caliber they check the cross section geometry, put on the crimp ring, the ends of the pipe are introduced into the fitting until it stops. The nut is first twisted manually, and when the pipe will become fixed with respect to the connector, take the tool and pull up.

Fittings crimped type and are sometimes used not only for connecting pipes made of solid copper, but also for soft copper products. In the latter case, inside the support sleeve is inserted to avoid deformation of the pipe ends

The strength with the help of fittings weakens the temperature instability and pressure jumps. After a certain time, wear seals occurs. To supervise this weak system, the connectors are needed to have easy access to them.

Apply the thread on pipes from copper is impossible. For their dusting with threaded details, special adapters produce. They have a construct the presence of a termination that connects the fitting with the pipe with the process of crimping or soldering and thread from the opposite side.

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Fittings installed by twisting on the threads are needed for detachable and conditionally detachable connections

Fittings for compression compounds are installed first literally by hand, then brought by a wrench or confusing key

During twisting, plastic copper is deformed by which it creates a practically monolithic connection.

Compression compounds are used mainly when installing shut-off and regulating reinforcement - devices requiring periodic replacement and repair

With the designation of products, for example, the pipe copper diameter is 8 mm, it is meant one of the main parameters of the pipes - the outer diameter. The many properties of the future pipeline depends on this indicator (working pressure, length, etc.). It is necessary to be able to operate with such values \u200b\u200bas inches and millimeters, since according to GOST, they are the main meters of this parameter. The digital equivalent of the values \u200b\u200bof parameters such as the length and diameter is often used in formulas at various calculations.

To date, the following diameters of copper pipes can be distinguished, which, one way or another, appear in the tables:

• External;
• Interior;
• Nominal.

The need for comparative tables with diameters arose due to various standards of Russia and Europe (all products associated with copper pipes :). Since most pipe manufacturers are foreign, inches are used in characteristics, whereas on our territory operate with mm values, see

Ø, inch	Outer diameter + wall thickness, mm
1/4	6.35+0.76
3/8	9.52+0.81
1/2	12.7+0.81
5/8	15.9+0.90
3/4	19.05+0.89
7/8	22.23+1.14
1	25.4+1.14
1 1/8	28.58+1.27
1 3/8	34.93+1.40
1 5/8	41.27+1.53
2 1/8	53.98+1.78
2 5/8	66.68+2.03
3 1/8	79.39+2.30
3 5/8	92.08+2.54
4 1/8	104.74+2.80

Copper pipe: diameter 15

The most popular, durable and relatively inexpensive tube copper, diameter 15 mm - 20 mm (or ½ and ¾) is used in Europe and the Russian Federation as the basis for heat exchange networks of the following closed systems:

• Heating system;
• Refrigeration unit;
• Solar battery;
• Split system.

Another common size, with the designation of which the pipe copper 5/8 is used, the diameter in mm is equal to 16. In addition, there are general concepts, such as conditional passage and wall thickness. The conditional passage is important to know when buying fittings, connecting individual segments of the pipeline (also measured in mm and inches). Perhaps you also want.

Copper Pipe Diameter Table

The following comparative table will help in the case when you compare the diameters of copper pipes for air conditioners, the table is also given for larger sizes used in heating and cold supply.

The company "Regional House of Metal" carries out the supply of such products as a copper tube with a diameter of 6 mm and more, by any parties from warehouses in St. Petersburg. If you are interested, let's say copper pipes for air conditioners, then you. We will promptly collect the order according to your technical requirements and deliver our own transport to any point of the Russian Federation, please contact us, we are always in touch!