Short Radius Rubber 90 Degree Elbow
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Short Radius Rubber 90
Degree Elbow
Information Required: Pipe call-out size
Step 1: Draw a 90-degree angle.
Step 2: Multiply the pipe callout size by pi,
divide by 2 and add 1 ½.
Step 3: Swing an arch from the apex. Use
this measurement to form cut line A.
Step 4: Draw a 22 ½ degree line from the
apex to cutline A form the horizontal line
Step 5: Add 1” to both the vertical and the
22 ½ degree lines to form cut lines B&C.
Step 6: Swing an arc for the throat.