BS EN 3572:2021 Aerospace series一PTFE flexible hose assembly with convoluted inner tube ofa nominal pressure up to 6 800 kPa and 8°30′ fitting in titanium一Product standard
BS EN 3572:2021 pdf free.Aerospace series一PTFE flexible hose assembly with convoluted inner tube ofa nominal pressure up to 6 800 kPa and 8°30′ fitting in titanium一Product standard.
This document specifies the dimensions of a hose assembly which is in accordance with Iso 7313. The hose assembly couples to the fittings specified in EN 3274, which are made out of titanium. The hose is protected either by means of an anti-abrasive, anti-shock and anti-projection sleeve or by means of a fire resistant or fire proof sleeve in accordance with ISO 2685.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2424, Aerospace series — Marking of aerospace products
ISO 7313, Aircraft — High temperature convoluted hose assemblies in polytetrafluoroethylene (PTFE)
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/ui
— IEC Electropedia: available at http://www.electropedia.org/
4 Length of hose assembly
The length of the hose assembly is measured starting from the theoretical sealing point of the fitting specified in the relevant standard (see Figure 1).
Example for a length of 680 mm use code “Fj”.
6 Nominal dimensions of hose and fittings
Table 4 shows the codes for the different diameters. Table 5 shows the possible combinations of the fittings and hoses.
7 Definition of fittings
The ftting combinations are shown in Table 6.
8 Orientation angles of fittings
The angle of orientation β is measured in degrees and counterclockwise starting from the ftting facing the observer (see Figure 2). Table 7 shows the different angles of orientation.
According to EN 2424, style G.
11 Technical specification
According to Iso 7313.
The manufacturer’s operations shall be an approved production organization for aerospace products and shall demonstrate that it has implemented and is able to maintain a quality management system (e.g. according to EN 9100 or another in aerospace accepted and established quality management system).
The qualification procedure for aerospace standard products (e.g. according to EN 9133 or another in aerospace accepted and established qualification procedure) shall be used and documented according to the specified tests if not otherwise agreed between customer and supplier.
This document (EN 3572:2021) has been prepared by the Aerospace and Defence Industries Association of Europe – Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2021, and conflicting national standards shall be withdrawn at the latest by September 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary. Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.BS EN 3572 pdf download.BS EN 3572:2021 Aerospace series一PTFE flexible hose assembly with convoluted inner tube ofa nominal pressure up to 6 800 kPa and 8°30′ fitting in titanium一Product standard