ISO 7369:2020 pdf download – Pipework — Metal hoses and hose assemblies — Vocabulary.
3.1.12 pliability capability of a metal hose (3.1.1) or tube to be bent easily for installation 3.1.13 bend radius radius measured to the centre line of the hose 3.1.14 minimum bend radius minimum radius at which the hose is designed to operate 3.2 Construction 3.2.1 Metal hoses (stripwound or corrugated) 3.2.1.1 strip sheet metal suitable for cold forming 3.2.1.2 packing component used to improve the leak-tightness of stripwound metal hoses (3.1.1.1) 3.2.1.3 profile geometrical form of a hose wall when sectioned along its axis 3.2.1.4 cross section geometrical form of a hose when sectioned perpendicular to its axis 3.2.1.5 nominal size of metal hose DN alphanumeric designation of size for components of a pipework system, which is used for reference purposes Note 1 to entry: It comprises the letters DN followed by a dimensionless whole number, which is indirectly related to the physical size, in millimetres, of the inside diameter (3.2.1.6). Note 2 to entry: This defined number does not represent a measurable value and should not be used for calculation purposes except where specified in the relevant standard. Note 3 to entry: The definition is adapted from ISO 6708.
3.2.1.9 braid tubular woven stocking of metal strands (3.2.1.9.1), or textile or plastic threads used to provide pressure strength and/or external protection (3.2.1.10) 3.2.1.9.1 metal braid strand strand group of parallel wires used for plain braid (3.2.1.9) or wires woven together to form a braided strand 3.2.1.9.2 braided braid braid (3.2.1.9) that is manufactured from previously braided strands (3.2.1.9.1) 3.2.1.10 external protection external component partly or wholly covering the hose EXAMPLE Protective coil, stripwound hose, rubber sleeves, fire protection, etc. 3.2.1.11 internal protection component used to protect the hose internally 3.2.1.12 coiling method of packaging metal hoses (3.1.1) 3.2.2 Metal hose assemblies 3.2.2.1 overall length length including end fittings (3.2.2.4) of the straightened-out hose assembly, unless otherwise specified 3.2.2.2 nominal size of metal hose assembly DN alphanumeric designation of size for components of a pipework system, which is used for reference purposes, and which comprises the letters DN followed by a dimensionless whole number, which is indirectly related to the physical size, in millimetres, of the inside diameter (3.2.1.6) Note 1 to entry: This defined number does not represent a measurable value and should not be used for calculation purposes except where specified in the relevant standard. Note 2 to entry: The definition is adapted from ISO 6708. 3.2.2.3 ferrule metal sleeve used to facilitate the attachment (3.2.2.5) of braid(s) (3.2.1.9) and end fittings (3.2.2.4) to the metal hose (3.1.1) 3.2.2.4 end? fitting permanently attached item, which allows metal hose (3.1.1) to be connected to other components 3.2.2.5 attachment method of fixing end fittings (3.2.2.4) on to a metal hose (3.1.1)