Correspondence of pipe diameters in inches and mm: tips on

Recently, all kinds of pipes for the creation of a water supply system or gas mains began to appear on the modern construction materials markets. At the same time, they can be made of different substances and have completely different standardization systems. Therefore, in order to choose the right product you need to know the pipe diameters in inches and mm in order to properly navigate in such a product.

Types and their classification

First we need to say that we will discuss the products that are used for plumbing and gas systems. At the same time, American and European systems will not be described either, since they have their own separate table of standards. Therefore, we will focus on the material that is freely available and easy to assemble with your own hands.

Metal systems

• First of all, it must be said that the diameter of such materials is measured outside. However, it is indicated in a different metric system. Separately, it is worth mentioning that the installation manual strongly recommends the use of special directories in the design, which indicate all the necessary parameters, ranging from wall thickness to the carrying capacity.

• All such products have a strictly defined standard.. Therefore, a pipe of 1 2 inches in mm is practically not measured from the outside. In such structures, the internal diameter, which is responsible for throughput, is important.
• It is considered that it is necessary to know similar parameters in order to realize connection with other systems.. However, experts recommend simply purchase the appropriate adapters that are sold along with fittings for connecting pipes.

• For example, we can say that a pipe 1 inch in mm from the inside has a size of 25 conditionally, and its outer diameter is 33.5 mm. The thickness of the walls depends on the specific type of this product.

Tip! It is important to mention that when cutting threads on products of this type use special dies, the size of which is also indicated in inches.

Plastic products

• When working with similar products, you do not need to convert inches to mm.. The fact is that such products are marked in the metric system.
• However, it should be noted that the inside diameter of the product is indicated. Therefore, a pipe of 20 mm in inches is actually 3/4. It should be pointed out that the thickness of the walls of such products may be different, and it will depend only on the personal standards of the manufacturer.

• If a 32 mm in inch pipe is used, which is one, then it may have a completely different outer diameter, which is related to pressure and wall thickness.. This is especially noticeable on products intended for highways or entering the house.

Tip! For such systems, you should choose a fitting that is made by the same manufacturer. This will eliminate the possibility of inconsistencies during docking.

Copper

• To begin with, it should be noted that the price of such material is quite high.. However, its quality has been tested over the years and does not cause any reproaches.
• At the same time, such a tube in inches and mm has fairly accurate dimensions, which, unlike other metal structures, are not given conventionally.. For example, a product with a diameter of 3/4 corresponds to a value of 19.05 mm.

• Such a ratio in size turned out because such structures were developed and used to this day in the countries of America.. Another measurement system was adopted there. Therefore, a 2 inch pipe in mm will correspond to an exact figure of 50.8 mm.

Tip! Such products are connected by soldering. This uses a special copper fitting and solder specific brand.

Additional Information

It should be noted that there are so many different materials that at first glance have different parameters, but belong to the same type of pipe. It all depends on their manufacturer and destination.

Given this, 1 tube inch in mm can have a completely different value, which will be close to 25.4 mm, although the outer diameter of such a product reaches 33.5 mm.

Tables and reference books

Given the diversity and number of measurement systems, all designers use special literature and correspondence tables. Thanks to this documentation, you can find out what diameter a pipe will have 1 1 2 inches in mm using standard GOST or certain materials that began to appear relatively recently.

Many manufacturers of this kind of product specifically produce such brochures or booklets, which indicate the technical characteristics of their products, and its dimensions. Also they display all existing fittings and other additional fittings.

It should be said that in the living conditions and in the manufacture of conventional pipe wiring in the apartment there is no need to know how much a pipe of 3 to 8 inches in mm will be. It is enough to immediately purchase an adapter from the introductory system to the selected type of material, and then use only products from one manufacturer.

Tip! To determine the size, it is enough to use one of the proposed tables to have an idea about this product.

Recommendations of the masters

• Typically, a metal pipe 1 1 4 inches in mm has a value of 32, while its external size will be 42. Therefore, some designers try to use structures made of other materials in order to slightly reduce such dimensions without affecting quality and strength.
• Experts recommend lowering the diameter in the system gradually, without making sudden drops. Otherwise, it is possible to get places subject to constant hydraulic stress.
• Most masters prefer to work with the material of the same type. However, they thoroughly study it and know all the difficulties that may arise during installation or operation.

Conclusion

After reading the video in this article, you can learn more about these products and their characteristics. Also taking into account the article proposed above, it is necessary to conclude that the diameter of some pipes is a very relative parameter, depending on the mass of various factors.