Fluidsystem och delar: allmänt

Ämnesområden: Slidventiler; Övriga ventiler
Kommittébeteckning: SIS/TK 118 (Rörledningsprodukter och ventiler)
Källa: CEN
Svarsdatum: den 8 dec 2019
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This European Standard specifies minimum general requirements for butterfly valves having metallic bodies for use in wafer, lug, flange or butt welding piping systems and used for isolating, regulating or control applications.

The PN and Class ranges are:

— PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160;

— Class 150; Class 300; Class 600; Class 900.

The DN range is:

— DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1 000; DN 1 100; DN 1 200; DN 1 400; DN 1 500; DN 1 600; DN 1 800; DN 2 000; DN 2 200; DN 2 400; DN 2 600; DN 2 800; DN 3 000; DN 3 200; DN 3 400; DN 3 600; DN 3 800; DN 4 000.

DN 750 is used only for Class 150 and Class 300.

NOTE Intermediate DNs are allowed upon agreement between manufacturer and customer.

For valves subject to Pressure Equipment Directive, EN 16668 applies together with this European Standard.

For industrial process control valves, EN 1349 and EN 60534-2-1 apply together with this European Standard.

For water supply application, EN 1074-1 and EN 1074-2 apply together with this European Standard.

The correspondence between DN and NPS is given for information in Annex D.

Ämnesområden: Tryckkärl
Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 16 dec 2019
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1.1 This document applies to the design and manufacture of welded, simple unfired pressure vessels manufactured in series, with a single or multiple compartment, here-in-after referred to as vessels.

It only applies to vessels that:

a) include fabrication by welding, but some designs can entail the use of bolts;

b) have a simple geometry enabling simple-to-use production procedures. This is achieved by either

1) a cylindrical part of circular cross section closed by outwardly dished and/or flat ends which revolve around the same axis as the cylindrical part; or

2) two outwardly dished ends revolving around the same axis.

1.2 It applies to vessels which are intended to contain air or nitrogen which are not intended to be fired and which operate within the following constraints:

a) subjected to an internal gauge pressure greater than 0,5 bar;

b) the parts and assemblies contributing to the strength of the vessel under pressure to be made either of non-alloy quality steel or of non-alloy aluminium or non-age hardening aluminium alloys;

NOTE In this document, the use of "aluminium" covers non-alloy aluminium and aluminium alloys.

c) the maximum working pressure is not greater than 30 bar. The product of the maximum working pressure and the capacity of the vessel (PS · V) is greater than 50 bar · l but does not exceed 10 000 bar · l. Below 50 bar · l use of this document is considered to fulfil the requirements of sound engineering practice;

d) the minimum working temperature is not lower than −50 °C and maximum working temperature not higher than 300 °C for steel and 100 °C for aluminium or aluminium alloy vessels.

It does not apply to vessels specifically designed for nuclear use, to vessels specifically intended for installation in or the propulsion of ships and aircraft, or to fire extinguishers.

The document neither applies to transportation vessels nor to vessels which also contain substances other than air or nitrogen which could adversely affect their safety. For vessels to contain compressed air for braking systems of road vehicles and their trailers, see also EN 286-2. For vessels to contain compressed air for braking systems of rail mounted vehicles, see also EN 286-3 and EN 286-4.

1.3 It applies to the vessel proper, from the inlet connection to the outlet connection and to all other connections required for valves and fittings.

1.4 For the purposes of calculations required to be made in accordance with this document, dimensions are in millimetre, pressures are in bar (except otherwise specified), stresses are in newton per square millimetre and temperatures are in degree Celsius.

Ämnesområden: Tryckkärl; Bromssystem
Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 16 dec 2019
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1.1 This document applies to the design and manufacture of simple unfired serially made pressure vessels, herein after referred to as vessels, designed for air breaking equipment and auxiliary systems for motor vehicles and their trailers, and which:

a) include fabrication by welding;

b) have a simple geometry enabling simple-to-use production procedures. This is achieved by either:

1) a cylindrical shell of circular cross section closed by outwardly dished and/or flat ends having the same axis of revolution as the shell; or:

2) two dished ends having the same axis of revolution;

c) have branches not larger in diameter than 0,5 of the diameter of the cylinder to which they are welded.

1.2 It applies only to vessels intended to contain compressed air, and which operate within the following constraints:

a) subjected to an internal pressure greater than 0,5 bar;

b) the parts and assemblies contributing to the strength of the vessel under pressure to be made either of non-alloy quality steel or of non-alloy aluminium or non-age hardening aluminium alloys;

c) maximum working pressure 30 bar, the product of that pressure and the capacity of the vessel (PS V) is greater than 50 bar litres and not exceeding 1 500 bar litres;

d) capacity not exceeding 150 litres;

e) minimum working temperature not lower than −50 °C and maximum working temperature not higher than 100 °C.

It does not apply to vessels specifically designed for nuclear use, to vessels specifically intended for installation in or the propulsion of ships and aircraft, or to fire extinguishers.

Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 16 dec 2019
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1.1 This document is applicable to simple unfired steel pressure vessels, referred to as "vessel" in this document, designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock (see Clause 13).

It defines three types of vessel A, B and C (see Table 1) corresponding to the current practice of European railway networks.

1.2 The vessels in this document are:

a) made from a single shell;

b) made from non-alloy steel;

c) fabricated by welding;

d) used at a maximum working pressure of 15 bar;

e) the product of the maximum working pressure (in bar) and the volume (in litre): 50 bar litres < PV ≤ 10 000 bar litres;

f) made of a cylindrical part of circular cross-section called the shell with two outwardly dished torispherical ends, that is two dished ends with the same axis of rotation. This document therefore does not apply to vessels with one or two flat ends or those made up of several compartments;

g) calculated with a design pressure P (see 5.1.4.1.2);

h) designed for a working temperature of between −40 °C and +100 °C;

i) fastened to vehicles:

1) by straps for types A and B vessels,

2) by welded brackets for types B and C vessels.

1.3 In normal service, a momentary overpressure of 10 % of PS, the maximum working pressure PS, is permitted.

1.4 This document applies to the vessel proper, from the inlet connection to the outlet connection and to all other connections and fittings belonging to the vessel.

1.5 This document gives the requirements to be met for the calculation, design, fabrication, inspection during fabrication and certification of the vessel, and fittings for assembly to the vehicle.

These requirements cannot be written in sufficient detail to ensure good workmanship or proper construction. Each manufacturer is therefore responsible for taking every necessary step to make sure that the quality of workmanship and construction is such as to ensure compliance with good engineering practice.

This document gives:

a) in Annex B, recommendations for assembly to the vehicles;

b) in Annex C, recommendations for the service surveillance of type A vessels;

c) in Annex D, recommendations for the service surveillance of types B and C vessels.

The requirements of this document apply to vessels designed to be fitted to rail vehicles.

 

 

Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 23 dec 2019
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Denna del av denna Europastandard anger krav på konstruktion av icke-eldberörda tryckkärl som täcks av EN 13445-1:2002 och är tillverkade av stål enligt EN 13445-2:2002. EN 13445-5:2002, bilaga C anger krav på konstruktion av åtkomst- och inspektionsöppningar, stängningsmekanismer och speciella låselement.

Ämnesområden: Cylindrar
Kommittébeteckning: SIS/TK 104 (Tätningselement)
Källa: ISO
Svarsdatum: den 7 jan 2020
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This part of ISO 7425 specifies the dimensions and associated tolerances for a series of piston seal housings to accommodate elastomer-energised, plastic-faced seals used in reciprocating applications.

It is not the intention of this part of ISO 7425 to stipulate details of seal design, since the manner of construction of seals varies with each manufacturer. The design and material of the seals, and any associated anti-extrusion components are determined by conditions such as temperature and pressure.

This part of ISO 7425 applies only to the dimensional characteristics of products manufactured in accordance with this part of ISO 7425. It does not apply to their functional characteristics.

Ämnesområden: Cylindrar
Kommittébeteckning: SIS/TK 104 (Tätningselement)
Källa: ISO
Svarsdatum: den 7 jan 2020
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This part of ISO 7425 specifies the dimensions and associated tolerances for a series of hydraulic cylinder rod seal housings to accommodate elastomer-energised, plastic-faced seals used in reciprocating applications.

It is not the intention of this part of ISO 7425 to stipulate details of seal design, since the manner of construction of seals varies with each manufacturer. The design and material of the seals, and any incorporated anti-extrusion components are determined by conditions such as temperature and pressure.

This part of ISO 7425 applies only to the dimensional characteristics of products manufactured in accordance with this part of ISO 7425. It does not apply to their functional characteristics.

Ämnesområden: Tryckkärl
Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 8 jan 2020
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Denna del av denna Europastandard anger krav på konstruktion av icke-eldberörda tryckkärl som täcks av EN 13445-1:2002 och är tillverkade av stål enligt EN 13445-2:2002. EN 13445-5:2002, bilaga C anger krav på konstruktion av åtkomst- och inspektionsöppningar, stängningsmekanismer och speciella låselement.

Kommittébeteckning: SIS/TK 298 (Konstruktion, tillverkning och kontroll av tryckbärande anordningar)
Källa: CEN
Svarsdatum: den 8 jan 2020
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1.1 This document is applicable to simple unfired aluminium alloy pressure vessels, referred to as "vessel" in this document, designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock (see 1.6).

1.2 The vessels to this document are:

a) made from a single shell;

b) made from aluminium alloy;

c) fabricated by welding;

d) used at a maximum working pressure of 10 bar;

e) the product of the maximum working pressure (in bar) and the volume (in litre): 50 bar litres < PV ≤ 10 000 bar litres;

f) made of a cylindrical part of circular cross-section called the shell with two outwardly dished torispherical ends, that is two dished ends with the same axis of rotation. This document therefore does not apply to vessels with one or two flat ends or those made up of several compartments;

g) calculated with a design pressure P (See 5.1.4.2);

h) designed for a working temperature of between −50 °C and +100 °C [+65 °C for certain grades of aluminium alloy (see 4.1.2)];

i) fastened to the vehicles by straps.

1.3 In normal service, a momentary overpressure of 1 bar of the maximum working pressure is permitted (10 % of PS).

1.4 This document applies to the vessel proper, from the inlet connection to the outlet connection and to all other connections and fittings belonging to the vessel.

1.5 This document gives the requirements to be met for the calculation, design, fabrication, inspection during fabrication and certification of the vessel, and fittings for assembly to the vehicle.

These requirements cannot be written in sufficient detail to ensure good workmanship or proper construction. Each manufacturer is therefore responsible for taking every necessary step to make sure that the quality of workmanship and construction is such as to ensure compliance with good engineering practice.

This document gives:

a) in Annex B, recommendations for assembly to the vehicles;

b) in Annex C, recommendations for the service surveillance of vessels.

1.6 The requirements of this document apply to vessels designed to be fitted to rail vehicles used on the main national networks, urban networks, underground railways, trams, private networks (regional railways, company railways, etc.).

Kommittébeteckning: SIS/TK 137 (Tryckkärlsstål)
Källa: CEN
Svarsdatum: den 16 jan 2020
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This Part of this European Standard specifies the requirements for materials (including clad materials) for unfired pressure vessels and supports which are covered by EN 13445-1:2014 and manufactured from metallic materials; it is currently limited to steels with sufficient ductility but it is, for components operating in the creep range, also limited to sufficiently creep ductile materials .

It specifies the requirements for the selection, inspection, testing and marking of metallic materials for the fabrication of unfired pressure vessels.

Kommittébeteckning: SIS/TK 118 (Rörledningsprodukter och ventiler)
Källa: CEN
Svarsdatum: den 20 jan 2020
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This part of EN 1514 specifies the dimensions and marking of spiral wound gaskets for use in conjunction with flat face and raised face flanges complying with the requirements of EN 1092-1 for PN 10, PN 16, PN 25, PN 40, PN 63, PN 100 and PN 160 and up to and including DN 1 000. NOTE 1 Dimensions of other types of gaskets for use with flanges to EN 1092-1, EN 1092-2, EN 1092-3 and EN 1092 4 are given in EN 1514-1, EN 1514-3, EN 1514-4, EN 1514-6, EN 1514-7 and EN 1514-8. NOTE 2 Annex A lists information to be supplied by the purchaser when ordering gaskets in circumstances where the choice of the gasket materials appropriate to the service is left to the manufacturer.

Kommittébeteckning: SIS/TK 118 (Rörledningsprodukter och ventiler)
Källa: CEN
Svarsdatum: den 20 jan 2020
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This document specifies the gasket parameters required by EN 1591-1 and provides the test procedures for establishing the values of these parameters.

Gaskets which are wholly based upon elastomers, or based upon elastomers with only the inclusion of particulate fillers or particulate reinforcement, as opposed to gaskets combining elastomers, fillers and fibrous reinforcement, are beyond the scope of this document.

NOTE The testing procedures given might be applicable to gaskets of other shapes and dimensions.

Kommittébeteckning: SIS/TK 118 (Rörledningsprodukter och ventiler)
Källa: CEN
Svarsdatum: den 20 jan 2020
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This document specifies the quality assurance procedures that are applicable to ensure that delivered gaskets comply with the relevant product standards. This document sets down procedures by which a user can have confidence that the salient features of each batch of gaskets or gasket materials delivered to them will be constant.

The gasket types covered by this document are those that are within the scope of the EN 1514 series and EN 12560 series and are simultaneously within the scope of the EN 1591 series. An exception is those gaskets intended solely for domestic fluids (like water, waste water ...) which are based on rubber with or without reinforcement like fillers and/or inserts.

Kommittébeteckning: SIS/TK 118 (Rörledningsprodukter och ventiler)
Källa: CEN
Svarsdatum: den 20 jan 2020
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This document is applicable to the selection of bolting for flanged joints on equipment subject to the Pressure Equipment Directive 2014/68/EU.

It specifies standards and additional requirements for dimensions, material properties and technical conditions of delivery for bolting.

NOTE 1 Washers are not within the scope of this document.

The selection is based on commonly used bolting. It covers common temperature ranges of the general service of flanges.

When selecting bolting according to this document, it is essential to take into account environmental conditions and other parameters including type of fluids, corrosion hazards, sour service, low temperature brittle failure and relaxation at elevated temperatures.

The purpose of this document is to provide a selection of most commonly used bolting types and bolting material combinations as well a tool for easy selection of suitable bolting for equipment.

It is not the intention to specify all possible applications but to give guidance on the most common applications. For example, application limits for material in the creep range are not explicitly covered in this document. Where material standard provides mechanical properties for the creep range, respective reference is made in Table 3.

NOTE 2 Special services and ambient conditions could require the application of coatings. It is the purchaser's option to decide on this. Depending on the coating used, a verification of the temperature ranges given in Table 3 and Table 4 could be required.

Ämnesområden: Tryckkärl
Kommittébeteckning: SIS/TK 296 (Gasflaskor)
Källa: ISO
Svarsdatum: den 20 jan 2020
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This document, in conjunction with ISO 10297:2014 and ISO 14246:2014, specifies design, type testing, marking and manufacturing tests, and examinations requirements for quick-release cylinder valves intended to be fitted to refillable transportable gas cylinders, pressure drums and tubes which convey non-toxic, non-oxidizing, non-flammable and non-corrosive compressed or liquefied gases or extinguishing agents charged with compressed gases to be used for fire-extinguishing, explosion protection, and rescue applications.

NOTE 1 The main application of such quick-release cylinder valves is in the fire-fighting industry. However, there are other applications such as to avalanche airbags, life raft inflation, and similar applications.

NOTE 2 Where there is no risk of ambiguity, gas cylinders, pressure drums and tubes are addressed with the collective term "cylinders" within this document.

This document covers the function of a quick-release cylinder valve as a closure.

This document does not apply to quick-release cylinder valves for cryogenic equipment, for portable fire extinguishers, or for liquefied petroleum gas (LPG).

NOTE 3 Quick-release cylinder valves of refillable propellant gas cylinders used as part of portable fire extinguishers are also covered by this document, if these cylinders are transported separately.

Kommittébeteckning: SIS/TK 467 (Värmepumpar)
Källa: ISO
Svarsdatum: den 15 feb 2020
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This standard prescribes the methods for testing the performance of air-to-air heat/energy exchangers when used as devices to transfer heat or heat and water vapor between two airstreams used in ventilation systems. This standard prescribes methods to characterize the performance of exchangers for use in calculation of the energy performance of buildings. The types of air-to-air heat/energy exchangers covered by this standard are:

a. fixed-plate exchangers [also known as recuperators],

b. rotary exchangers, including heat wheels and total energy wheels [also known as regenerators],

c. heat pipe exchangers using a heat transfer medium, excluding those using mechanical pumping,

This standard does not provide a method for measuring the response of exchangers to the formation of frost.