Fluidsystem och delar: allmänt

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 10 aug 2020
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This International Standard specifies the requirements and test methods for mechanical fittings intended to join plastic pressure piping systems including transition fittings to metal pipes for the following:

— supply of gaseous fuels (GAS);

— supply of water for human consumption (W), including raw water prior to treatment and for the supply of water for general purpose, as well as underground drainage and sewerage under pressure (P);

— supply of water for irrigation (I);

— industrial applications (IS).

This International Standard is applicable only to mechanical fittings with operating-temperature and pressure limits as indicated in the relevant systems standards.

NOTE A list of International Standard for plastic pipes for which mechanical fittings can be used can be found in Annex A.

Flanges are not covered by this International Standard.

Mechanical fittings for hot and cold water systems inside buildings, as well as for district heating applications, are not covered by this International Standard.

Ämnesområden: Slangar och slangledningar
Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: ISO
Svarsdatum: den 19 aug 2020
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This document specifies a method for the determination of the abrasion resistance of the outer cover of rubber and plastics hoses.

This test method is suitable for hoses with outside diameters from 10 mm to 100 mm.

This method is intended primarily for testing hydraulic hoses having textile- or wire-reinforcement and a nominally smooth and parallel cover, and other hoses of a similar type.

This method is not intended for predicting product abrasion life, but is suitable for the comparison of abrasion levels.

Ämnesområden: Slangar och slangledningar
Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: CEN
Svarsdatum: den 19 aug 2020
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This document specifies requirements for ten classes, four grades and seven types of wire- or textile-reinforced hydraulic hoses and hose assemblies of nominal sizes ranging from 5 to 102. Each class has a single maximum working pressure for all sizes.

They are suitable for use with:

— oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from −40 °C to +100 °C for types AS, AC, BS and BC hoses and from −40 °C to +120 °C for types CS, CC and DC hoses;

— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from −40 °C to +70 °C;

— water at temperatures ranging from 0 °C to +70 °C;

This document does not include requirements for the connection ends. It is limited to the performance of hoses and hose assemblies. The hose assembly maximum working pressure is governed by the lowest maximum working pressure of the components.

NOTE It is the responsibility of the user, in consultation with the hose manufacturer, to establish the compatibility of the hose with the fluid to be used.