What do you need to know about cast iron pipes?

Added: Tuesday, 7/25/2023


Cast iron pipes have enjoyed great popularity and recognition for many years, and there is no indication that this popularity will fade. This is largely due to their durability, resistance to mechanical damage and the ability to dampen vibrations. It is worth learning about their use and learning more about them.

Cast Iron Pipes on Earth

Check out cast iron pipes at the Onninen wholesaler

Application of cast iron pipes

Cast iron pipe RSP dn 70 L=3000 mm KML RSP Cast iron pipes have a wide range of applications. They can be used to build water supply systems, but also gas or sewage systems. They have a special protective coating that prevents corrosion. It is important to know that the coating cannot contain components that are soluble in water. Cast iron pipes can last up to 100 years, which is largely due to their reliability. First of all, it is important to know that cast iron is an alloy of iron and carbon. It has a high granite content, which is distributed in the matrix and takes the form of small plates. Thanks to this structure, durable, abrasion-resistant, but also very tight pipes are obtained, and as you can guess, cast iron pipes are heavy. They are resistant to high temperatures. They can be used for installations not only in private homes, but also in public places, such as hospitals, schools or companies. We must also mention that the properties of cast iron improve safety, but also reduce noise. Therefore, there is no need to use additional acoustic or thermal insulation.

What types of cast iron pipes are there?

Cast iron pipes, depending on the carbon, can be white, gray, but also semi-finished. The former have a bright break. Carbon in them is in the form of cement. They are most often used in sanitary installations, while gray cast iron pipes contain carbon, which occurs as graphite. Such cast iron pipes have a wide range of applications and can actually be used for any installation. As for semi-finished, they have carbon in the form of cement and graphite and also have a wide range of applications. All of them show really high mechanical strength. Of course, remember that when choosing, you should pay attention to such parameters as:

  • degree of impact strength;
  • yield strength;
  • temporary resistance;
  • elongation factor.

Cast iron pipes are wear-resistant. They also exhibit resistance to compression, good projection properties and fatigue strength. They can also be divided according to their functional properties. In this case, the TML classification is used. We distinguish socketless pipes, which have a smooth structure along their entire length, with the bell at one end having an enlarged diameter. The second type is the SME bell-shaped pipes. These are cast iron pipes without a socket and allow for quick assembly and disassembly. They are most often used in external sewage system installations. Cast iron sewage pipes are connected using special tightening devices. In this case, the connecting elements should consist of a steel tensioning collar and a flexible sleeve.

Cast iron pipes in the Onninen wholesale offer

At the Onninen installation wholesaler you will find a variety of cast iron pipes.

Cast iron pipe Preis SML 250x3000 The Preis SML 50x3000 cast iron pipe made of grey cast iron without sockets is worthy of attention. The cast iron pipe from the Preis brand has a wide range of applications. It is perfect for gravity sewage installations, but also for drained installations inside buildings. It is made in accordance with the EN877 standard. For greater durability and resistance to damage, it has a coating of cross-linked epoxy resin. It is applied by spraying. Thanks to this, such pipes will work well even in the case of transporting aggressive sewage.

A good choice for many installations will also be the cast iron pipe RSP dn 70 L = 3000 mm KML RSP . It will work even in those where the sewage is very aggressive. It can be used in catering establishments, but also in hotel complexes or even supermarkets. The cast iron pipe from RSP is resistant to changing weather conditions, which applies to both temperature and humidity. The pipes can be laid in floor installations, both in sand bedding and poured with concrete.

You can choose a product such as the Preis SML 250x3000 cast iron pipe . It is manufactured in accordance with the EN877 standard. In addition to excellent strength parameters, the cast iron pipe also provides acoustic protection. The high density of cast iron and the buffering effect of rubber seals perfectly reduce the sound of the material to a minimum, so the drain can be virtually silent. This pipe is also resistant to aggressive sewage.

Check out cast iron pipes at the Onninen wholesaler