Description for intense and professional use

Last updated on Tue, 02/08/2011 - 20:16

Resistance to corrosive or/and hot effluents

The inside of cast iron systems can be subjected to chemical and thermal aggressions when they transport fluids that are corrosive and/or at high temperatures.

Characterisation of intense or professional uses:

Standard requirements

To give precise guidance for S range 20 tests – in addition to the Standard EN 877 requirements - were carried out on detergent products and special products of common use. These tests also aimed at assessing S and Plus ranges boarders.
You will see in the application table that the boarder is determined by the nature of the fluids and the operating temperature.
The combination of high pH products (base and alcaline products) and high temperatures calls for the use of the Plus range. The reason why we called this chapter intense of professional use is directly related to the daily duration of exposure.

Aggressive effluents are characterized by their content (acids, bases, solvents, hydrocarbons…), their combinations and their temperature.

  • Hot water resistance: 24 h at 95°C continuous and thermal cycles (1500 cycles of 5 min between 15° and 93° C)
  • Salt spray resistance: 1500 h
  • Chemical resistance: 1 < pH < 13

Owing to its anti-corrosion thick linings, the Plus range provides a greater chemical resistance and is particularly well adapted for intense uses.

Resistance to aggressive backfills or severe climatic stresses

The outside of a pipe may also be subjected to the aggressive effects of climate or backfills, in the case of buried systems.