CASTING FLASKS and RECOMMENDED SPRUE
BASES
 |
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A. 21.685 |
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1-1/4" |
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1-1/2" |
|
21.776 |
|
– |
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B. 21.686 |
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1-3/8" |
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1-3/8" |
|
21.777 |
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– |
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C. 21.687 |
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1-3/4" |
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1-3/4" |
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21.778 |
|
21.825 |
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D. 21.68701 |
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2" |
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2-1/2" |
|
21.779 |
|
21.824 |
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E. 21.688 |
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2-1/2" |
|
2" |
|
21.781 |
|
21.826 |
|
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F. 21.689 |
|
2-1/2" |
|
2-1/2" |
|
21.781 |
|
21.826 |
|
| |
G. 21.690 |
|
2-1/2" |
|
3" |
|
21.781 |
|
21.826 |
|
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H. 21.691 |
|
2-1/2" |
|
4" |
|
21.781 |
|
21.826 |
|
| |
I. 21.693 |
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3" |
|
2-1/2" |
|
21.782 |
|
21.827 |
|
| |
J. 21.694 |
|
3" |
|
3" |
|
21.782 |
|
21.827 |
|
| |
K. 21.695 |
|
3" |
|
4" |
|
21.782 |
|
21.827 |
|
| |
L. 21.696 |
|
3-1/2" |
|
2-1/2" |
|
21.783 |
|
21.828 |
|
| |
M. 21.697 |
|
3-1/2" |
|
2-3/4" |
|
21.783 |
|
21.828 |
|
| |
N. 21.69701 |
|
3-1/2" |
|
3" |
|
21.783 |
|
21.828 |
|
| |
O. 21.698 |
|
3-1/2" |
|
5" |
|
21.783 |
|
21.828 |
|
| |
P. 21.699 |
|
3-1/2" |
|
5" |
|
21.783 |
|
21.828 |
|
| |
Q. 21.69901 |
|
4" |
|
4" |
|
21.784 |
|
21.829 |
|
| |
R. 21.701 |
|
4" |
|
5" |
|
21.784 |
|
21.829 |
|
| |
S. 21.702 |
|
4" |
|
6" |
|
21.784 |
|
21.829 |
|
| |
T. 21.70201 |
|
5" |
|
7" |
|
– |
|
– |
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| |
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Button
Sprue Base - Fill the cup in the center with wax
|
|
Universal
Sprue Bases |
|
| |
or
clay to form the base for the sprue. |
|
One size
fits all 2-1/2", 3", and 3-1/2" (51,
64, |
|
| |
Tree
Sprue Base - Perfect for high production operations. |
|
76, and
89 mm) flasks. |
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| |
|
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Part
No. 21.780 |
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