Transcription of FLANGE DIMENSIONS TABLE TYPES
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FLANGE DIMENSIONS TABLE TYPES
Stanbel Road Salisbury Plain, South Australia 5109 Telephone +61 (0)8 8285 0033 Fax +61 (0)8 8285 BRISBANE PERTHFLANGE DIMENSIONS TABLE TYPESOVERVIEWIn Australia the BS and AS FLANGE standards are essentially the same but have been metricated. Consequently metric sizes are stated as DN (Nominal Diameter) in mm. Equivalent imperial sizing is rounded to the nearest multiple of 25mm (for 2 and over) as below. However the actual DIMENSIONS and bore sizes have not changed. NB (Nominal Bore) is also sometimes used when referring to valve DN152 1/2 DN6512 DN30024 DN6003/4 DN203 DN8014 DN35028 DN7001 DN254 DN10015 DN37530 DN7501 1/4 DN325 DN12516 DN40032 DN8001 1/2 DN408 DN20018 DN45036 DN9002 DN5010 DN25020 DN500 The most common flanging used in Australia in oil, gas and mining is now ANSI flanging to ANSI However in general industrial, commercial and waste/water industries AS2129 TABLE flanging is the most common.
A Class 300 flange is rated to a higher pressure than a Class 150 flange, because a Class 300 flange is constructed with more metal and therefore can withstand more pressure. However there are a number of factors that can impact the pressure capability of a flange. The Pressure Class for flanges is often expressed in ‘pounds’.
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