Short Radius Rubber 90 Degree Elbow

Snowman's Notes · pages 124-124 · PDF subsection

Open source PDF at page 124

Page 124

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.