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Nesting Type Special Cast Bellows |
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Press-Up(R)
Bellows |
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Features |
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Nesting type special cast bellows
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We are pleased to announce a new addition to our ORV range of products.
As a result of our continuing pursuit of technological excellence, we have designed a
new bellows which has greater flexibility than already existing ones.
Before this technological breakthrough, this type of bellows was
manufactured by pressing and punching round stainless steel plates one by
one and then welding them together.
Now thanks to our unique and newly
developed technology, we are able to manufacture bellows in one
smooth step.
Compared to existing lines of welded bellows, this new bellows has proven
to be more cost effective. |
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Standard Specification
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| ●Flange type |
NW(KF) |
●Working pressure range |
0.2MPa～Ultra high vacuum |
| ●Bellows material |
SUS316L |
●Permissible leakage rate |
Less than 1.33×10-10 Pa･m3/sec. |
| ●Flange material |
SUS304 |
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| (Dimension Chart) |
(Unit:mm)
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| Nominal I.D. |
Model number |
I.D |
O.D |
D |
I |
L |
| 16A |
ORV- 16C-PB |
20.0 |
31.0 |
30 |
20 |
80 |
| 25A |
ORV- 25C-PB |
25.0 |
37.5 |
40 |
20 |
80 |
| 40A |
ORV- 40C-PB |
40.0 |
59.0 |
55 |
20 |
100 |
| 50A |
ORV- 50C-PB |
50.0 |
70.0 |
75 |
20 |
100 |
| 80A |
ORV- 80C-PB |
77.0 |
104.0 |
114 |
25 |
120 |
| 100A |
ORV-100C-PB |
101.0 |
132.0 |
134 |
25 |
120 |
| Nominal I.D. |
Model number |
Axial movement |
Life cycle |
Spring constant
(N/mm) |
| 16A |
ORV- 16C-PB |
+ 5, -10 |
more than
10000 times |
3.14 |
| 25A |
ORV- 25C-PB |
+ 5, -10 |
3.72 |
| 40A |
ORV- 40C-PB |
+ 10, -20 |
3.82 |
| 50A |
ORV- 50C-PB |
+ 10, -20 |
3.53 |
| 80A |
ORV- 80C-PB |
+ 12, -25 |
5.39 |
| 100A |
ORV-100C-PB |
+ 12, -25 |
4.41 |
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