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Timestamp: 2019-08-21 16:54:28
Document Index: 149454677

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Fluidsystem och delar: allmänt | DRS
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+Rörledningskomponenter och rörledningar (9)
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ISO/DIS 8521 - Glass-reinforced thermosetting plastic (GRP) pipes - Test methods for the determination of the initial circumferential tensile wall strength
Ämnesområden: Plaströr
Svarsdatum: den 21 aug 2019
This document specifies six test methods for the determination of the initial circumferential tensile wall strength per unit of length of glass-reinforced thermosetting plastics (GRP) pipes.
NOTE Another commonly used term for "circumferential tensile strength" is "hoop tensile strength" and the two expressions can be used interchangeably.
The burst test (method A) is suitable for all types and sizes of pipes. It is considered the reference method. However, all the methods in document have equal validity. If correlation of any of the methods B to F can be established by a comparative test programme, then that method can be considered as the reference method.
The split disc test (method B) might not be suitable for pipes with helically wound reinforcing layers.
The strip test (method C), the modified strip test (method D) and the restrained strip test (method E) are suitable for pipes with a nominal size of DN 500 and greater.
The notched plate test (method F) is primarily intended for use with helically wound pipes of nominal size greater than DN 500 with a winding angle other than approximately 90°.
Results from one method are not necessarily equal to the results derived from any of the alternative methods.
If required, the initial circumferential tensile modulus can be determined by method A.
ISO/DIS 9110-1 - Hydraulic fluid power - Measurement techniques - Part 1: General measurement principles
Ämnesområden: Hydrauliska system: allmänt
Svarsdatum: den 26 aug 2019
This part of ISO 9110 establishes general principles for the measurement of performance parameters under static or steady-state conditions.
This document provides guidance on the sources and magnitudes of uncertainty to be expected in the calibration of and measurements using hydraulic fluid power components. It describes practical requirements for assessing the capability of the measuring system, and hence the level of uncertainty of the measurement system, or for assisting in developing a system which will meet a prescribed level of uncertainty.
ISO/DIS 9110-2 - Hydraulic fluid power - Measurement techniques - Part 2: Measurement of average steady-state pressure in a closed conduit
This part of ISO 9110 establishes procedures for measuring the average steady-state pressure in a hydraulic fluid power conduit.
It is applicable to the measurement of average steady-state pressure in closed conduits with inside diameters greater than 3 mm, transmitting hydraulic fluid power with average fluid velocities less than 25 m/s and average steady-state static pressures less than 70 MPa (700 bar).
It is not applicable to sensors which are flush mounted with, or are an integral part of, the closed fluid conduit wall.
It provides the formulae for estimating the total uncertainty in a given pressure measurement.
ISO/DIS 11298-4 - Plastics piping systems for the renovation of underground water networks - Part 4: Lining with cured in place pipes
Ämnesområden: Plaströr; Rördelar av plast; Yttre transportsystem för vatten
Svarsdatum: den 27 aug 2019
prEN ISO 23856 - Plastics piping systems for pressure and non-pressure water supply, drainage or sewerage - Glass-reinforced thermosetting plastics (GRP) systems based on unsaturated polyester (UP) resin (ISO/DIS 23856:2019)
Ämnesområden: Plaströr; Avloppsinstallationer; Utvändiga avloppssystem
Ämnesområden: Tryckkärl; Tryckregulatorer
This document specifies the design, testing and marking requirements for spring loaded pressure relief valves (PRV), for use in liquefied petroleum gas (LPG) cylinders of water capacity of 0,5 l up to and including 150 l. These PRVs can be either an integral part of a cylinder valve (see EN ISO 14245 [4] and EN ISO 15995 [5]) or a separate device.
ISO/DIS 23088 - Gas cylinders - Periodic inspection and testing of welded steel pressure drums - Capacities up to 1 000 l
Ämnesområden: Gasflaskor
This document specifies the requirements for periodic inspection and testing of welded steel transportable pressure drums of water capacity from 150 l up to 1 000 l and up to 300 bar test pressureintended for compressed and liquefied gases.
prEN 13445-3/A14 - Unfired pressure vessels - Part 3: Design
Ämnesområden: Övriga rörledningskomponenter
Svarsdatum: den 26 sep 2019
prEN 17414-2 - District cooling pipes - Factory made flexible pipe systems - Part 2: Bonded system with plastic service pipes - Requirements and test methods
This document specifies requirements and test methods for factory made thermally insulated bonded flexible pipe-in-pipe assemblies for directly buried district cooling distribution systems, comprising a service pipe from DN 15 to DN 200 and a casing of polyethylene. The pipe assembly may also include the following additional elements: measuring wires, spacers and diffusion barriers.
This document specifies requirements and test methods for factory made thermally insulated non-bonded flexible pipe-in-pipe assemblies for directly buried district cooling distribution systems, comprising a service pipe from DN 15 to DN 200 and a casing of polyethylene. The pipe assembly may also include the following additional elements: measuring wires, spacers and diffusion barriers.
prEN ISO 4126-3 - Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination (ISO/DIS 4126-3:2019)
Ämnesområden: Skydd mot stötchock; Tryckregulatorer
Svarsdatum: den 13 okt 2019
This part of ISO 4126 specifies only the requirements for a product assembled from the in series combination of safety valves or CSPRS (controlled safety pressure relief systems) according to ISO 4126-1, ISO 4126-4 and ISO 4126-5, and bursting disc safety devices according to ISO 4126-2 installed upstream of the valve within five pipe diameters of the valve inlet. It specifies the design, application and marking requirements for such products, composed of the bursting disc safety device, a safety valve or CSPRS and, where applicable, a connecting pipe or spool piece. In addition, it gives a method for establishing the combination discharge factor used in sizing combinations.
ISO/DIS 11119-1 - Gas cylinders - Refillable composite gas cylinders and tubes - Design, construction and testing - Part 1: Hoop wrapped fibre reinforced composite gas cylinders and tubes up to 450 l
Ämnesområden: Tryckkärl
Svarsdatum: den 14 okt 2019
This part of ISO 11119 specifies minimum requirements for the material, design, construction and workmanship, manufacturing processes, examination and testing at time of manufacture for
— type 2 composite hoop wrapped cylinders or tubes with a load-sharing metal liner and composite reinforcement on the cylindrical portion only
— water capacities up to 450 l
— the storage and conveyance of compressed or liquefied gases
— cylinders and tubes with composite reinforcement of carbon fibre, aramid fibre or glass fibre (or a mixture thereof) within a matrix or steel wire to provide circumferential reinforcement
— a minimum design life of 15 years.
— the design, fitting, and performance of removable protective sleeves.
NOTE 1 References to cylinders in this International Standard include composite tubes if appropriate.
NOTE 2 ISO 11439 applies to cylinders intended for use as fuel containers on natural gas vehicles and ISO 11623[ covers periodic inspection and re-testing of composite cylinders.
ISO/DIS 11119-3 - Gas cylinders - Refillable composite gas cylinders and tubes - Design, construction and testing - Part 3: Fully wrapped fibre reinforced composite gas cylindersand tubes up to 450L with non-load-sharing metallic or non-metallic liners
— type 4 composite fully wrapped cylinders or tubes with a non-load sharing liner and composite reinforcement on both the cylindrical portion and the dome ends
— type 5 fully wrapped cylinders or tubes without liners and with a test pressure of less than 60 bar and composite reinforcement on both the cylindrical portion and the dome ends (Type 5 linerless cylinders and tubes made from two or more parts joined together are not permitted under this standard).
— for the storage and conveyance of compressed or liquefied gases
— cylinders and tubes with composite reinforcement of carbon fibre, aramid fibre or glass fibre (or a mixture thereof) within a matrix
Cylinders and tubes manufactured and tested to this standard are not intended to contain toxic, oxidizing or corrosive gases.
This standard not address
— the design, fitting and performance of removable protective sleeves.
NOTE 2 ISO 11439 applies to cylinders intended for use as fuel containers on natural gas vehicles and ISO 11623 covers periodic inspection and re-testing of composite cylinders.
ISO/DIS 6259-2 - Thermoplastics pipes - Determination of tensile properties - Part 2: Pipes made of unplasticized poly(vinyl chloride) (PVC-U), oriented unplasticized poly(vinyl chloride (PVC-O), chlorinated poly (vinyl chloride) (PVC-C) and high-impact poly (vinyl chloride) (PVC-HI)
Svarsdatum: den 21 okt 2019
This part of ISO 6259 specifies a method of determining the tensile properties of pipes made of unplasticized poly(vinyl chloride) (PVC-U), oriented unplasticized poly(vinyl chloride) (PVC-O), chlorinated poly(vinyl chloride) (PVC-C) and high-impact poly(vinyl chloride) (PVC-HI, PVC-M or PVC-A), and in particular the following properties:
— the stress at yield and stress at break;
— the elongation at break.
NOTE The general method of test for the determination of the tensile properties of thermoplastics pipes is given in ISO 6259-1.
This part of ISO 6259 also gives, for information purposes only, the corresponding basic specifications in annexes A, B, C and D.
prEN 1329-1 - Plastics piping systems for soil and waste discharge (low and high temperature) within the building structure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: Specifications for pipes, fittings and the system
Ämnesområden: Rörledningskomponenter och rörledningar: allmänt; Plaströr; Avloppsinstallationer
Svarsdatum: den 5 nov 2019
This document specifies the requirements for solid wall pipes with smooth internal and external surfaces, extruded from the same formulation throughout the wall, fittings and the system of unplasticized poly(vinyl chloride) (PVC-U) piping systems intended for soil and waste discharge applications (low and high temperature):
— inside buildings (application area code "B");
— for both inside buildings and buried in ground within the building structure (application area code "BD").
NOTE 1 The intended use is reflected in the marking of products by "B" or "BD".
NOTE 2 Multilayer pipes with different formulations throughout the wall and foamed core pipes are covered by EN 1453-1 [1].
NOTE 3 For use buried in ground within the building structure are intended only those components (marked with "BD") with nominal outside diameters equal to or greater than 75 mm.
This document is also applicable to PVC-U pipes, fittings and the system intended for the following purposes:
This document also specifies the test parameters for the test method that are referred to.
This document covers a range of nominal sizes, a range of pipes and fittings series and gives recommendations concerning colours.
NOTE 5 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 regulations and installation practices or codes.
For external above ground application additional requirements depending on the climate should be agreed between the manufacturer and the user.
NOTE 6 Pipes, fittings and other components conforming to any of the plastics product standards listed in Annex B can be used with pipes and fittings conforming to this document, provided they conform to the requirements for joint dimensions given in Clause 6 and to the requirements of Table 25.