TECHNICAL RECOMMENDATIONS - Tubos Apolo

TECHNICAL RECOMMENDATIONS

Recommendations for the installation of BLACK STEEL PIPES OR GALVANIZED STEEL TUBES.

APOLO tubes are of recognized quality and exhibit high performance when applied correctly and following the basic rules from its transport to its installation. It is particularly important that appropriate quality and knowledge, and that the use of materials for always be the most appropriate.

APOLO tubes feature high strength and durability. However, it is important that the be handled in a manner that is appropriate and appropriate to the product. First of all, avoid damage that may jeopardize their use in the future, such as violent coups and shocks. In this sense it is important to for the use of appropriate mechanical equipment. With all:

  • Avoid too many moves;
  • Avoid contact with corrosive products (acids, salt, etc.), including sweat body;
  • Wear gloves for personal protection that are free of products that may compromise the integrity of the tube;
  • Avoid sudden operations that could damage the pipe or its coating.

In order to avoid deformations that could affect its future use, the storage of the pipes should be leveled and or flat. Aiming at safety, when the tubes are stored, some supported stacking height should not exceed 7 strung (tied closed, standard APOLO supply). The tubes APOLO must be stored in such a way that there is no contact with products potentially harmful to the integrity such as acids, solvents for paints, salts, chlorine, etc. Black / uncoated tubes should preferably be stored in a covered location and protected from the weather, because they are easily affected by corrosion. Therefore:

Important: Carbon steel pipes should never be stored together with copper pipes.
  • Use covered, airy and damp place;
  • Avoid direct contact with soil;
  • Avoid contact with corrosive products (acids, salts, chlorides etc.);
  • When stacking, make the appropriate support (minimum of 3 points, keeping the tubes level and away from the ground);
  • Maximum stacking (7 strung - Apollo pattern);
  • OBS. IMPORTANT: Carbon steel pipes should never be stored with copper pipes.

The transport of pipes is also a very important activity in relation to the preservation not only of the product, but also of the physical integrity of who is carrying and therefore, special attention should be waived for some requirements as described below:

  • Transport vehicles must have adequate capacity in relation to the load carried;
  • The surface of the loading platform of the transport vehicles shall be free from any type of overhang which could damage the product or its coating;
  • The tubes can not pass the loading platform of the conveyors;
  • Larger gauge tubes should be positioned at the bottom of the load;
  • The freight carried must not move during its journey, so make sure that the mooring is properly secured before you leave;
  • The characteristics of cables, tensioners, chains and other mooring accessories shall be such as to ensure the immobility of the load and do not compromise the integrity of the product.
  • Ensure that the mooring accessories are not contaminated with corrosive products;
  • The transport of black / uncoated pipes should preferably be done with rain
  • Carbon steel is a material that is subject to oxidation, so we should never transport steel pipes with other materials with corrosive characteristics that can retain moisture or otherwise compromise the integrity of the product.
  • During unloading, avoid throwing pipes against the floor / ground.

As for any technical work we aim to perform, the choice of products that meet the design specifications and the hiring of qualified technicians (designers, engineers and the main factors for the success of a safe hydraulic installation.

An improper choice can lead to improvised and uneconomical solutions to undesirable repairs. The interface between design and execution should be well aligned, otherwise it could bring future losses when the correction can be more difficult and costly.

As a pipe manufacturer, we at APOLO do not have the necessary expertise that a good installer must have, however, here are some guidelines that are directly linked to the use of our products and which will problems during and after installation.

  • Avoid installations in areas subjected to constant humidity;
  • It is recommended that the quality of the water to be conducted has a concentration of at most 30mg / l of CO2 and 100mg / l of free chlorine, as well as the total hardness around 100ppm of calcium carbonate (CaCO3);
  • In galvanized pipes, it is recommended to limit the temperature of the water distributed in steady state to 70 ° C in intermittent conditions at 55 ° C;
  • When using thermal insulation coatings, it is important to make sure that although they offer adequate insulation, they will not have aggressive piping characteristics (they may cause corrosion);
  • In the middle of the pipes, materials with Ph (acidity index) around 12.5 containing low chloride and sulphate contents should be used;
    • DIN1164 (Cement)
    • ABNT NBR 6118 (Concrete Structures Project - Procedure)
    • ABNT NBR 7211 (Concrete aggregates - Specification)
    • Taking into consideration the common characteristics of mortar, we recommend that it has a maximum content of 0.001% of chlorides and Ph between 12.5 and 13.
  • In industry, laboratories or in places where the atmosphere contains a high content of aggressive pollutants to carbon steel (black or galvanized), it is not convenient to use pipes without an insulating environment such as: mortar, paint, varnish, etc.
  • Specifically with regard to galvanized pipe, avoid the formation of the so-called galvanic / galvanic contact (copper x galvanized steel). Even in non-aggressive media, the first member may be capable of disrupting the second coating and thereby provide intense corrosion. If it is not possible to avoid, taking as reference the direction of the liquid flow, try to use cathodic materials (copper) after the anodic (galvanized).
  • The use of acid or basic substances (eg, muriatic acid, caustic soda, etc.) in cleaning works, for example, can only be carried out after the tube has been fully enveloped by a glazing medium. However, considerable attention is paid to potential flaws in the casing to prevent cleaning agents from coming in contact with the pipe. In the case of use of these products or of others, whose Ph is in the range that compromises the integrity of the pipe (black or galvanized), even after being wrapped by a protective / insulating medium, cleaning residues should not be drained by tubing.
  • Avoid Buried Facilities - See "SPECIFIC RECOMMENDATIONS FOR BURIED INSTALLATIONS"