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Mandrel & Wiper Charts

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  MANDREL CHART
 
"D" OF BEND (CLR/TOD)
1 1.25 1.5 2 2.5 3 4 5

WALL FACTOR (TOD/WT)

10 P P P P P P N/A N/A
12 1 1 P P P P N/A N/A
15 2 1 1 1 P P P N/A
20 2 2 2 1 1 1 P P
25 3 2 2 2 1 1 1 P
30 3 3 2 2 2 2 1 1
40 4 3 3 3 3 2 2 1
50 4 4 3 3 3 3 2 2
60 4 4 4 4 4 3 3 2
70 5 5 4 4 4 4 3 3
80 5 5 5 5 4 4 4 3
100 5 5 5 5 5 5 4 4
125 5 5 5 5 5 5 5 5
   
Notes:
[1] N/A = Mandrel not recommended.
[2] P = Plug mandrel recommended.
[3] 1, 2, or 3 = 1-, 2-, or 3-ball regular-pitch mandrel recommended.
[4] 4 or 5 = 4- or 5-ball close-pitch mandrel recommended.
[5] Recommendations assume 180-degree bend.
[6] Applications with wall factors in excess of 70 may require additional 
     balls or double-close pitch depending upon tubing material and machine. 

 

  WIPER CHART
 
"D" OF BEND (CLR/TOD)
1 1.25 1.5 2 2.5 3 4 5

WALL FACTOR (TOD/WT)

10 N/A N/A N/A N/A N/A N/A N/A N/A
12 W N/A N/A N/A N/A N/A N/A N/A
15 W W N/A N/A N/A N/A N/A N/A
20 W W W N/A N/A N/A N/A N/A
25 W W W W W N/A N/A N/A
30 W W W W W W N/A N/A
40 W W W W W W W N/A
50 H W W W W W W W
60 H H W W W W W W
70 H H H W W W W W
80 H H H H W W W W
100 H H H H H H W W
125 H H H H H H H H
   
Notes:
[1] N/A = Wiper not recommended.
[2] W = Standard wiper recommended.
[3] H = High-pressure wiper recommended.
[4] Recommendations assume 180-degree bend.

 


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