Fluidsystem och delar: allmänt

Kommittébeteckning: SIS/TK 170 (Luftbehandlingsteknik)
Källa: CEN
Svarsdatum: den 4 mar 2019
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This International Standard deals with the determination of those technical characteristics needed to describe all aspects of the performance of jet fans as defined in ISO 13349. It does not cover those fans designed for ducted applications, nor those designed solely for air circulation, e.g. ceiling fans and table fans.

The test procedures described in this International Standard relate to laboratory conditions. The measurement of performance under on-site conditions is not included

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 5 mar 2019
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This document specifies the definitions and requirements for ancillary fittings and shallow chambers installed underground in non-pressure drainage and sewerage systems and manufactured from unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP), polypropylene with mineral modifier (PP-MD) or polyethylene (PE) intended for use for:

— non-pressure underground drainage and sewerage outside the building structure (application area code "U"), and

— non-pressure underground drainage and sewerage for both buried in ground within the building structure (application area code "D") and outside the building structure.

This is reflected in the marking of products by "U" and "UD".

It also covers the jointing of the ancillary fittings and shallow chambers to the pipework system.

The ancillary fittings covered by this standard are the following:

— sealed access fittings;

— rodding point covers;

— rodding tees;

— mechanical saddles.

Ancillary fittings according to this document are intended for use in pedestrian or vehicular traffic areas.

Ancillary fittings can be installed to a maximum depth of 6,0 m from ground level, with the exception of rodding point covers.

Shallow chambers according to this document are intended for use in private drains located in pedestrian areas above the ground water table, to a maximum depth of 2,0 m from ground level to the invert of the main channel. This document covers shallow chambers with flow profile bases, and their joints to the piping system.

NOTE 1 EN 124 series and EN 1253-4 covers can be used for shallow chambers.

NOTE 2 Manholes and inspection chambers are specified in EN 13598-2.

Ancillary fittings and shallow chambers complying with EN13598-1 comply with the general requirements given in EN 476.

Ancillary fittings and shallow chambers can be manufactured by various methods e.g. injection moulding, rotational moulding, spiral winding or fabricated from components made to other standards.

NOTE 3 Products complying with this document can be used with pipes, fittings and other components conforming to any of the plastics products standards listed in Clause 2, provided their dimension comply with the requirements for joint dimensions given in Clause 7 and to the requirements of Table 6.

NOTE 4 Products complying with this document can be installed in underground applications without additional static calculation.

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 5 mar 2019
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This document specifies the definitions and requirements for unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) manholes and inspection chambers intended for non-pressure underground drainage and sewerage systems to a maximum depth of 6 m from ground level to the invert of the manhole or inspection chamber.

This document covers manholes and inspection chambers with flow profile bases, and their joints to the piping system.

Manholes and inspection chambers are intended to be used in pedestrian or vehicular traffic areas outside the building structure.

NOTE 1 The intended use in underground installation outside the building structure is reflected in the marking of products by the application area code "U".

NOTE 2 Products complying with this document may also be used in non-traffic areas.

NOTE 3 Products complying with this standard can be installed in underground applications without additional static calculation.

NOTE 4 Shallow chambers are specified in EN 13598-1.

Manholes and inspection chambers complying with EN 13598-2 are made from a prescribed set of components that are manufactured from unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP), polypropylene with mineral modifier (PP-MD) or polyethylene (PE) and assembled together.

NOTE 5 The complete manhole or inspection chamber assembly can also include non-plastic items (near surface or surface components for example) which are not covered by this document.

NOTE 6 Manholes and inspection chambers can be supplied with covers, frame covers and gratings complying with the relevant part of EN 124 [1].

Manholes and inspection chambers complying with EN 13598-2 comply with the general requirements given in EN 476.

Manholes and inspection chambers complying with EN 13598-2 may be used for storm-water systems.

Manhole and inspection chamber components can be manufactured by various methods e.g. extrusion, injection moulding, rotational moulding, low-pressure moulding or fabricated.

NOTE 7 Manholes and inspection chambers can be site assembled from different components, but can also be manufactured as a single unit.

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 6 mar 2019
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This document, together with ISO 21138-1: , specifies the definitions and requirements for pipes with smooth external and internal surfaces (Type A), fittings and systems based on unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall piping systems intended to be used in non-pressure underground drainage and sewerage applications.

NOTE 1 Pipes, fittings and the system complying with this document can also be used for highway drainage and surface water.

This document specifies test methods and test parameters.

This document covers a range of pipe and fitting sizes, materials, pipe constructions and nominal ring stiffnesses, and gives recommendations concerning colours.

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 installation practices or codes.

In conjunction with ISO 21138-1: , this document is applicable to structured-wall pipes and fittings, to their joints and to joints with components of other plastics and non-plastics materials.

It is applicable to pipes and fittings with or without an integral socket with elastomeric ring seal joints as well as welded and fused joints.

NOTE 3 For dimensions larger than DN/OD 1200, or DN/ID 1200, this document can serve as a general guide regarding appearance, colour, physical and mechanical characteristics as well as performance requirements.

Test methods are not included in this document.

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 6 mar 2019
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This document, together ISO 21138-1: , specifies the definitions and requirements for pipes with a non-smooth external surface and a smooth internal surface (Type B), fittings and systems based on unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall piping systems intended to be used in non-pressure underground drainage and sewerage applications.

NOTE 1 Pipes, fittings and the system complying with this standard may also be used for highway drainage and surface water.

This document specifies test methods and test parameters.

This document covers a range of pipe and fitting sizes, materials, pipe constructions and nominal ring stiffnesses, and gives recommendations concerning colours.

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 installation practices or codes.

In conjunction with ISO 21138-1:—, this document is applicable to structured-wall pipes and fittings, to their joints and to joints with components of other plastics and non-plastics materials.

It is applicable to pipes and fittings with or without an integral socket with elastomeric ring seal joints as well as welded and fused joints.

NOTE 3 Pipes, fittings and other components conforming to any plastics product standards referred to in Clause 2 are deemed to be suitable for use with pipes and fittings conforming to this document, when they conform to the requirements for joint dimensions given in ISO 21138-2:— or ISO 21138-3:— and to the performance requirements given in Clause 10.

NOTE 4 For dimensions larger than DN/OD 1200 or DN/ID 1200, this document can serve as a general guide regarding appearance, colour, physical and mechanical characteristics as well as performance requirements.

Test methods are not included in this document.

Ämnesområden: Rördragning och kopplingar
Kommittébeteckning: SIS/TK 106 (Hydraulik och pneumatik)
Källa: ISO
Svarsdatum: den 18 mar 2019
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This document specifies a selection of nominal pressures for hydraulic and pneumatic fluid power connectors and associated components.

NOTE 1 There may be a need to provide a selection of nominal pressures for connectors and associated components used in applications where the external pressure on the components is greater than the internal pressure, for example vacuum service. A document that deals with this subject will be established in due course.

Kommittébeteckning: SIS/TK 132 (Koppar)
Källa: CEN
Svarsdatum: den 21 mar 2019
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Ämnesområden: Dricksvatten; Backventiler
Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 1 apr 2019
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This document specifies:

a) field of application;

b) requirements for in line anti-vacuum valves;

c) dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of in-line anti-vacuum valves DN 10 to DN 50;

d) test method and requirements for verifying these properties;

e) marking and presentation;

f) acoustics.

This document specifies the characteristics of in-line anti-vacuum valves DN 10 to DN 50 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.

Ämnesområden: Ventiler: allmänt
Kommittébeteckning: SIS/TK 118 (Rörledningsprodukter och ventiler)
Källa: CEN
Svarsdatum: den 2 apr 2019
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This document provides basic requirements for gearboxes to operate industrial valves for manual and automated on/off and modulating duties, this includes manual override gearboxes. It includes guidelines for classification, design and methods for conformity assessment.

It does not cover gear systems which are integral part in the design of valves and subsea gearboxes.

Other requirements or conditions of use different from those indicated in this document should be agreed between the purchaser and the manufacturer or supplier (first party), prior to order.

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 3 apr 2019
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This document together ISO 21138-2: and ISO 21138-3: , specifies the definitions and requirements for pipes, fittings and systems based on unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall piping systems intended to be used in non-pressure underground drainage and sewerage applications.

NOTE 1 Pipes, fittings and the system complying with this standard may also be used for highway drainage and surface water.

This document covers a range of pipe and fitting sizes, materials, pipe constructions, nominal ring stiffnesses, and gives recommendations concerning colours.

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 installation practices or codes.

In conjunction with ISO 21138-2: and ISO 21138-3: , this document is applicable to structured-wall pipes and fittings, to their joints and to joints with components of other plastics and non-plastics materials.

It is applicable to structured-wall pipes and fittings with or without an integral socket with elastomeric ring seal joints as well as welded and fused joints.

NOTE 3 Pipes, fittings and other components conforming to any plastics product standards referred to in Clause 2 can be used with pipes and fittings conforming to this document when they conform to the requirements for joint dimensions given in Parts 2 and 3 of ISO 21138 and to the performance requirements given in Clause 9.

NOTE 4 For dimensions larger than DN/OD 1200 or DN/ID 1200, this document can serve as a general guide regarding appearance, colour, physical and mechanical characteristics as well as performance requirements.

Kommittébeteckning: SIS/TK 106 (Hydraulik och pneumatik)
Källa: ISO
Svarsdatum: den 15 apr 2019
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ISO 6358-1:2013 specifies a steady-state method for testing pneumatic fluid power components that use compressible fluids, i.e. gases, and that have internal flow paths that can be either fixed or variable in size, to determine their flow-rate characteristics. ISO 6358-1:2013 does not apply to components whose flow coefficient is unstable during use, i.e. components that exhibit remarkable hysteretic behaviour (because they can contain flexible parts that deform under the flow) or that have an internal feedback phenomenon (such as regulators). In addition, it does not apply to components that exchange energy with the fluid during flow-rate measurement, e.g. cylinders, accumulators, etc.

ISO 6358-1:2013 specifies requirements for the test installation, the test procedure, and the presentation of results for the steady-state method.

Kommittébeteckning: SIS/TK 106 (Hydraulik och pneumatik)
Källa: ISO
Svarsdatum: den 15 apr 2019
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This part of ISO 6358 specifies a discharge test and a charge test as alternative methods for testing pneumatic fluid power components that use compressible fluids, i.e. gases, and that have internal flow passages that can be either fixed or variable in size to determine their flow-rate characteristics. However, this part of ISO 6358 does not apply to components whose flow coefficient is unstable during use, i.e. components that exhibit remarkable hysteretic behaviour (because they can contain flexible parts that deform under the flow) or that have an internal feedback phenomenon (such as regulators), or components that have a cracking pressure such as non-return (check) valves and quick-exhaust valves. In addition, it does not apply to components that exchange energy with the fluid during flow-rate measurement, e.g. cylinders, accumulators, etc.

NOTE This part of ISO 6358 does not provide a method to determine if a component has hysteretic behaviour; ISO 6358-1 does provide such a method.

Table 1 provides a summary of which parts of ISO 6358 can be applied to various components.

Table 1 — Application of ISO 6358 test methods to components

 

The charge test cannot be performed on components that do not have downstream port connections.

This part of ISO 6358 specifies requirements for the test installation, the test procedure, and the presentation of results.

Evaluation of measurement uncertainties is described in Annex A. Requirements for a method to test the volume of an isothermal tank are given in Annex B. Guidance on the isothermal tank is given in Annex C. Requirements for a method to test isothermal performance are given in Annex D. Guidance on the equation for calculating characteristics is given in Annex E. Guidance on calculating flow-rate characteristics is given in Annex F.