ISO DRAWINGS ISO DRAWINGS Connected PipingConnected Piping ISO SYMBOLS ISO SYMBOLS Special ComponentsSpecial ComponentsĮxample of double-line method showing existing piping ? Elbows can be drawn a couple of ways check with company standards company standards ? Fittings are drawn the same shape as they appear on the plan & elevation drawings EXCEPT theyre at an isometric angle. Not following the general rule leads to a chaotic looking isometric it doesnt look professional Parallel to the last direction change or branch in the GOOD techniques, is to draw the fittings so they are The general rule for producing an isometric using Know that there are good methods and poor When orienting fittings and valves its important to Structural reference points that provide location can Structural reference points that provide location canbe shown on isometricĭimensions MUST always be given to points ofreference such as structures, existingequipmentetcĬoordinates should also be shown on the isometricdrawingįITTING SYMBOLS AND ORIENTATIONFITTING SYMBOLS AND ORIENTATION Location and direction help to properly orient theisometric drawingĪ north arrow give direction and should ALWAYSpoint to the upper-right corner of the paper Its IMPORTANT that the written dimensions areaccurate

Many companies draw isometrics on b-size paper(11 x 17) which is a limited space so sometimesproportion may be sacrificed However, pipe lengths should be shownproportionatelyproportionately Left, note that all directions of the pipe match the three isometric axis lines Non-isometric lines: lines NOT parallel to the isometric lines these lines cannot be measured

ISOMETRIC DRAWINGS ISOMETRIC DRAWINGS - LayoutLayout Isometric lines: one vertical & two at 30 from horizontal Isometrics also provide a drafter with the ability toĬalculate angular offsets in the pipe run. Isometrics are used as fabrication & shop drawings for Typically it is used to supplement the plan drawings

Sometimes it is used in lieu of plans and elevations but Its popular within the process piping industry because itĬan be laid out and drawn with ease and portrays the ISOMETRIC DRAWINGS ISOMETRIC DRAWINGS - DimensionsDimensions Which three sides of an object can be seen in one view. An isometric drawing is a type of pictorial drawing in

Piping isometric drawing standards pdf