Fluidsystem och delar: allmänt

Ämnesområden: Kulventiler
Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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Ämnesområden: Övriga ventiler
Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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Ämnesområden: Backventiler
Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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Ämnesområden: Övriga ventiler
Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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Ämnesområden: Slidventiler
Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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This document specifies the general aspects of polyethylene (PE) compounds for the manufacture of pressure pipes and fittings (mains and service pipes) for buried or above ground applications, intended for the conveyance of water for human consumption, raw water prior to treatment, drainage and sewerage under pressure, vacuum sewer systems, and water for other purposes.

This document also specifies the test parameters for the test methods referred to in this International Standard.

In conjunction with other parts of the ISO 4427- series, this document is applicable to PE pipes and fittings, their joints and to joints with components made of PE and other materials, intended to be used under the following conditions:

a) a maximum allowable operating pressure (PFA) up to and including 25 bar ;

b) an operating temperature of 20 °C as the reference temperature.

NOTE 1 For other operating temperatures, guidance is given in Annex A.

The ISO 4427- series covers a range of maximum allowable operating pressures and gives requirements concerning colours and additives.

NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national guidance or regulations and installation practices or codes.

Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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This document specifies the pipes made from polyethylene (PE) for buried or above ground applications, intended for the conveyance of water for human consumption, raw water prior to treatment, drainage and sewerage under pressure, vacuum sewer systems, and water for other purposes.

NOTE 1 The intended uses include sea outfalls, laid in water and pipes suspended below bridges

For the transport of water intended for human consumption in contaminated soils, special care should be taken.

NOTE 2 ISO 21004 provides alternative solution for use in contaminated soils. See Reference [2] in the Bibliography.

This document specifies three types of pipe:

— PE pipes (outside diameter dn), including any identification stripes;

— PE pipes with co-extruded layers on either or both the outside and/or inside of the pipe (total outside diameter dn) where all layers have the same MRS rating;

— PE pipes (outside diameter dn) having a peelable and contiguous thermoplastics additional layer on the outside of the pipe ("coated pipe").

This document also specifies the test parameters for the test methods referred to in this International Standard.

In conjunction with the other parts of the ISO 4427- series, this document is applicable to PE pipes, their joints and to joints with components made of PE and other materials, intended to be used under the following conditions:

a) a maximum allowable operating pressure (PFA) up to and including 25 bar1);

b) an operating temperature of 20 °C as the reference temperature.

NOTE 3 For other operating temperatures, guidance is given in ISO 4427-1: , Annex A.

This document covers a range of maximum allowable operating pressures and gives requirements concerning colours and additives.

NOTE 4 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national guidance or regulations and installation practices or codes.

Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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This document specifies the fittings made from polyethylene (PE) for buried or above ground applications, intended for the conveyance of water for human consumption, raw water prior to treatment, drainage and sewerage under pressure, vacuum sewer systems, and water for other purposes.

NOTE 1 The intended uses include sea outfalls, laid in water and connection between pipes suspended below bridges.

This document also specifies the test parameters for the test methods referred to in this International Standard.

In conjunction with the other parts of the ISO 4427- series, this document is applicable to PE fittings, to joints with components of PE or other materials, intended to be used under the following conditions:

a) a maximum allowable operating pressure (PFA) up to and including 25 bar1);

b) an operating temperature of 20 °C as the reference temperature.

NOTE 2 For other operating temperatures, guidance is given in ISO 4427-1: , Annex A.

This document covers a range of maximum allowable operating pressures and gives requirements concerning colours and additives.

NOTE 3 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national guidance or regulations and installation practices or codes.

This document is applicable to fittings of the following types:

1. fusion fittings;

a. electrofusion fittings;

b. spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion);

c. socket fusion fittings (see Annex A);

2. mechanical fittings;

a. compression fittings;

b. flanged fittings;

3. fabricated fittings (see Annex B).

Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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This document specifies the characteristics of the fitness for purpose of pipes and/or fittings assemblies made from polyethylene (PE) for buried or above ground applications, intended for the conveyance of water for human consumption, raw water prior to treatment, drainage and sewerage under pressure, vacuum sewer systems, and water for other purposes.

NOTE 1 The intended uses include sea outfalls, laid in water and pipes suspended below bridges

NOTE 2 This document is intended to be only used by the product manufacturer to assess the performance of components according to ISO 4427-2: and/or ISO 4427-3: when joined together under normal and extreme conditions. It is not intended for on-site testing of pipe systems.

This document also specifies the test parameters for the test methods referred to in this International Standard..

In conjunction with the other parts of the ISO 4427- series, this document is applicable to PE pipes, fittings, their joints and to joints with components of PE and other materials, intended to be used under the following conditions:

a) a maximum allowable operating pressure (PFA) up to and including 25 bar1);

b) an operating temperature of 20 °C as the reference temperature.

NOTE 3 For other operating temperatures, guidance is given in ISO 4427-1: , Annex A.

The ISO 4427- series covers a range of maximum allowable operating pressures and gives requirements concerning colours and additives.

Ämnesområden: Kägelventiler
Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 15 sep 2018
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Kommittébeteckning: SIS/TK 226 (Plaströrssystem)
Källa: ISO
Svarsdatum: den 23 sep 2018
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This document specifies the mating dimensions for thermoplastic flange adapters and corresponding loose backing flanges intended to be used in thermoplastic piping systems for the conveyance of fluids under pressure.

It applies to flange adapters and loose backing flanges for use with pipes with nominal outside diameters (dn) from 16 mm to 2000 mm and nominal pressures up to 25 bar1) (PN 25).

This standard specifies the dimensions of the flange adapters intended to be used for:

— Butt fusion piping systems.

— Socket fusion piping systems.

— Adhesive jointed piping systems.

NOTE 1 For specific connections with dimensions (eg dn450 or dn 630) not covered in this document, specific solutions are available on the market.

This document covers loose backing flanges made from metal, thermoplastics, or a combination of metal and thermoplastics.

This document also provides information on gaskets, and gives general recommendation on good assembling practices.

NOTE 2 Industrial application are not covered by this document. Products intended for industrial application are covered by ISO 15493[1], ISO 15494[2] or ISO 10931[3].

Kommittébeteckning: SIS/TK 106 (Hydraulik och pneumatik)
Källa: ISO
Svarsdatum: den 29 sep 2018
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This document specifies sizes and nominal working pressures for tubes with outside diameters in accordance with ISO 4397, and wall thicknesses and mechanical properties in accordance with ISO 3304 (seamless precision steel tubes} and ISO 3305 (welded precision steel tubes). The nominal working pressures included in this standard reflect a design factor ratio of 4 to 1 applied to the calculated burst pressures.

Ämnesområden: Tryckkärl
Kommittébeteckning: SIS/TK 296 (Gasflaskor)
Källa: ISO
Svarsdatum: den 1 okt 2018
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This International Standard specifies minimum requirements for the material, design, construction, workmanship, examination and testing at manufacture of refillable welded steel cylinders for the sub-atmospheric pressure storage of liquefied and compressed gases. It only applies to the cylinders themselves, irrespective of the materials contained therein (e.g. adsorbents, media, materials and/or gases) and other related applications. The cylinders have a test pressure not greater than 42 bar and a water capacity from 0,5 l up to and including 12 l exposed to ambient temperatures for the purpose of facilitating the sub-atmospheric pressure storage of liquefied and compressed gases as adsorbed gases. Inspection at the time of fill is specified in Annex A and periodic inspection and testing is specified in Annex B.