DIN 20002-1:1989-11

This standard applies to steel tubes with loose flanges and smooth collars including appurtenant nuts and bolts, as generally used in mining for compressed-air or water mains for statutory operation pressures of up to 10 bar, together with fittings as per DIN 20003 part 1. In addition for water in pipelines of up to 250 mm of nominal width operation pressures of up to max. 25 bar are allowed if the conditions contained in table 2 are met.