HAAS - CATALOG 7.5 Page 157
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DID YOU KNOW... ...the general meanings and various abbreviations for pressure indications or measurements? 1 bar 1 Pa 1 hPa 1 at 1 Torr „bar“ „Pa“ „at“ „atü“ „Torr“ = = = = = = = = = = 100.000 Pa 0,1 mbar 1 mbar 1.013 mbar 133 Pa = 1,33 mbar statutory unit for pressure (within the EU) Pascal (Unit for pressure within international units system „SI“) technical atmosphere atmosphere overpressure usual in the US Within the EU, the use of the "unit of measure" "bar" is still allowed in addition to the international SI unit "Pascal". Simplified, 1 bar corresponds to a water column of approx. 10 m. For example, a water pressure is required for a 15 m high building, the pump power should be >1,5 bar. The operating pressure of heating systems in 1 to 2 family houses is usually 2-2,5 bar. Pressure tests of pipelines for gas / water supply are carried out according to DVGW 469 or DIN 1988 TRWI with the 1,1- / 1,3- / 1,43- or 1,5-times operating pressure, but at least 15 bar. Illustrations, dimensions and descriptions are not binding. We reserve the right to make technical changes!
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