Fluidsystem och delar: allmänt

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 13 mar 2020
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ISO 15494:2015 specifies the characteristics and requirements for components such as pipes, fittings, and valves made from one of the following materials intended to be used for thermoplastics piping systems in the field of industrial applications above and below ground: - polybutene (PB); - polyethylene (PE); - polyethylene of raised temperature resistance (PE-RT); - crosslinked polyethylene (PE-X); - polypropylene (PP). NOTE 1 Requirements for industrial valves are given in this International Standard and/or in other standards. Valves are to be used with components conforming to this International Standard provided that they conform additionally to the relevant requirements of this International Standard. This International Standard is applicable to either PB, PE, PE-RT, PE-X, or PP pipes, fittings, valves, and their joints and to joints with components of other plastics and non-plastic materials, depending on their suitability, intended to be used for the conveyance of liquid and gaseous fluids as well as solid matter in fluids for industrial applications such as the following: - chemical plants; - industrial sewerage engineering; - power engineering (cooling and general purpose water); - mining; - electroplating and pickling plants; - semiconductor industry; - agricultural production plants; - fire fighting; - water treatment; - geothermal. NOTE 2 Where relevant, national regulations (e.g. water treatment) are applicable. Other application areas are permitted if the requirements of this International Standard and/or applicable national requirements are fulfilled. National regulations in respect of fire behaviour and explosion risk are applicable. The components have to withstand the mechanical, thermal, and chemical demands to be expected and have to be resistant to the fluids to be conveyed.

Ämnesområden: Gasflaskor
Kommittébeteckning: SIS/TK 289 (Gassystem)
Källa: CEN
Svarsdatum: den 16 mar 2020
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This document specifies the construction characteristics, performances and marking related to safety and the rational use of energy of portable, flat gas appliances directly supplied at the LPG vapour pressure, incorporating a gas cartridge complying with EN 417:2012, inserted horizontally in the chassis.

NOTE These appliances are referred to in the body of the text as "appliances".

This document covers appliances for outdoor or in well ventilated areas uses only.

For example the following types of appliances are covered:

a) cooking appliances (stoves, grills, barbecues);

b) heating appliances;

The requirements apply to these appliances or their functional sections whether or not the latter are independent or incorporated into an assembly.

Appliances covered by this document are not connected to a flue for the discharge of products of combustion and are not connected to the mains electricity supply.

This document covers neither appliances supplied with LPG in the liquid phase nor appliance with fixed integral container which may or may not be refilled by the user.

This document does not cover appliances of direct pressure propane category.

Requirements for rational use of energy have been considered for stove burners.

NOTE However, such requirements have not been considered for the other types of appliances because:

— for grills, this type of cooking varies according to the type of food and region where the appliance is used;

— for heating appliances, all the heat produced is discharged into the environment;

Ämnesområden: Slangar och slangledningar
Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: CEN
Svarsdatum: den 26 mar 2020
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This document specifies two methods for measuring the stiffness and one method for the determination of the flexibility of rubber and plastics hoses and tubing when they are bent to a specific radius at sub-ambient temperatures.

Method A is suitable for non-collapsible rubber and plastics hoses and tubing with a bore of up to and including 25 mm. This method provides a means of measuring the stiffness of the hose or tubing when the temperature is reduced from a standard laboratory temperature.

Method B is suitable for rubber and plastics hoses and tubing with a bore of up to 100 mm and provides a means of assessing the flexibility of the hose or tubing when bent around a mandrel at a specified sub-ambient temperature. It can also be used as a routine quality control test.

Method C is suitable for rubber and plastics hoses and tubing with a bore of 100 mm and greater. This method provides a means of measuring the stiffness of the hose and tubing at sub-ambient temperatures. This method is only suitable for hoses and tubing which are non-collapsible.

Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: CEN
Svarsdatum: den 26 mar 2020
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This document specifies the requirements for rubber hose and hose assemblies for wet and dry sand and grit blasting, suitable for use up to a maximum working pressure of 0,63 MPa (6,3 bar) and over an operating temperature range of −25 °C to +70 °C.

Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: CEN
Svarsdatum: den 26 mar 2020
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This document specifies requirements for three types of textile-reinforced thermoplastics hoses and hose assemblies of nominal size from 3,2 to 25. Each type is divided into two classes dependent on electrical conductivity requirements.

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 +93 °C;

— water-based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 0 °C to +60 °C

— water at temperatures ranging from 0 °C to +60 °C.

This document does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies.

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.

Ämnesområden: Slangar och slangledningar
Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: ISO
Svarsdatum: den 26 mar 2020
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This document specifies requirements for two types of reinforced hoses and hose assemblies of nominal size from 3,2 to 25, dependent on relation of minimum burst pressure to maximum working pressure. Each type is divided into classes dependent on maximum working pressure.

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;

— water based fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743-4 at temperatures ranging from 0 °C to +70 °C

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

Such hoses and hose assemblies are intended to be used for

— water jetting and water blasting applications

— hydraulic applications.

This document does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies.

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.

NOTE For hydraulic jacks with manually driven pumps, hoses and hose assemblies per ISO 16301 may be used.

Ämnesområden: Slangar och slangledningar
Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: CEN
Svarsdatum: den 30 mar 2020
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This document specifies three methods for determining the resistance to vacuum of hoses and hose assemblies manufactured from plastic or rubber. Applicable dimensions of hoses for each method are as follows:

— method A for hoses and hose assemblies of nominal size up to and including 80 ;

— method B for hoses of nominal size greater than 80 ;

— method C for hoses of all dimensions.

Methods A and B can also be used to check the adhesion of the lining to the reinforcement (delamination) in a length of hard-wall hose or hose assembly.

Kommittébeteckning: SIS/TK 118 (Rörledningsprodukter och ventiler)
Källa: CEN
Svarsdatum: den 7 apr 2020
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This document specifies the requirements for design, manufacture and installation of metal bellows expansion joints with circular cross section for pressure applications, i.e. maximum allowable pressure greater than 0,5 bar.

Ämnesområden: Plaströr; Vatteninstallationer
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 13 apr 2020
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