Pipework — Double overlap flexible metal hoses (unpacked, limited tightness, circular or polygonal section, in protected carbon steel)

Specifies diameters of hoses and gives requirements to be verified in accordance with ISO 7658. Applies to uncoated hoses under low pressure with permissible leakage, at temperatures from -20 to +600 C. A figure illustrates the meaning of the text. Gives an example of designation. The table includes nominal sizes from DN 6 up to and including DN 500.