BS ISO 19631:2015 pdf download – Aerospace series — Tube fittings for fluid systems, 5 080 psi (35 000 kPa) — Qualification specification

BS ISO 19631:2015 pdf download – Aerospace series — Tube fittings for fluid systems, 5 080 psi (35 000 kPa) — Qualification specification 1 Scope This International Standard specifies performance and quality requirements for the qualification andmanufacture of standard tube fittings to ensure reliable performance in aircraft hydraulic 5 080 psi(35 000 kPa) systems. This International Standard specifies baseline criteria for the design and manufacture of systemfittings that are qualification tested on engines. This International Standard covers fittings from size -O4 to -20 used for the following:-separable/permanent pipe end fittings; – permanent connection fittings; -separable connection fittings. This International Standard covers fittings of the temperature types and pressure classes specified inISO 6771. 2Normative references The following documents, in whole or in part, are normatively referenced in this document and areindispensable for its application. For dated references, only the edition cited applies.For undatedreferences, the latest edition of the referenced document (including any amendments] applies. ISO 2685,Aircraft – Environmental test procedure for airborne equipment — Resistance to fire indesignated fire zones ISo 6772,Aerospace —Fluid systems — Impulse testing of hydraulic hose, tubing and fitting assemblies ISO 6773,Aerospace — Fluid systems — Thermal shock testing of piping and fittings ISo 7137,Aircraft —Environmental conditions and test procedures for airborne equipment ISO 7257,Aircraft — Hydraulic tubing joints and fittings — Rotary flexure test ISO 10583:1993,Aerospace fluid systems —Test methods for tube/fitting assembliesEUROCAE ED-14E/RTCADO-160E,Section 22, Lightning Induced transient Susceptibility 3Requirements 3.1Qualification Fittings claiming conformity with this International Standard shall be representative of products,which have successfully met the requirements and have passed the tests in this International Standard.3.1.1 Manufacturer qualification Manufacturer approval shall be granted by purchaser qualification procedure. 3.3.2Temperature 3.2.2.1 Ambient Air: -54 C to +135 °C3.2.2.2 Hydraulic Fluid:-54 °C to +135°C3.4Design and manufacture 3.4.1 Fluid passages On fittings where the fluid passage is drilled from each end, the offset between the drilled holes at themeeting point shall not exceed 0,25 mm(0.10 in). It shall be possible to pass through the fitting passagea ball whose diameter is 0,37 mm (0.015 in) less than the minimum diameter specified for the passage.Angular misalignment shall not exceed 1° for straight fittings and 2° for shaped fittings. 3.5Performance The tubing/fitting assembly shall be capable of meeting the performance requirements specified in3.5.1 to 3.5.21. 3.5.1Specimen preparation Test specimens shall be assembled as specified in Table 11.Sleeve installations on the tube end shall bein accordance with user instructions. The fitting shall be...