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| ㆍHome > Products > Vacuum bellows |
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 Introduction |
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DSI vacuum bellows may be made in any diameter as a result of hydroforming technologies.
The features of bellows in comparison to super bellows is high cost performance and available in a wide range of variations. DSI vacuum bellows is usually used to isolate vibration in piping between machinery and delicate apparatus. |
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| VACUUM BELLOWS |
『Specifications』 |
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| Material: SUS304, 316, 316L |
【Unit: mm Outside tolerance:±0.3】 |
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Products code |
16A |
20A |
25A |
40A |
50A |
65A |
80A |
100A |
125A |
150A |
200A |
250A |
300A |
ID |
16.1 |
20.0 |
25.3 |
37.7 |
49.8 |
66 |
78.1 |
100.3 |
127.2 |
148.6 |
200.2 |
250.3 |
300.0 |
OD |
24 |
28.5 |
35.5 |
55 |
67.5 |
86.5 |
101 |
126.5 |
155 |
175.5 |
235 |
293 |
345 |
Leakage rate |
<1.0X10-9Pa·m3/s |
Elasticity |
20%~30% |
Length |
3 Meter |
Temp |
-200℃ ~ 800℃ |
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| Technical information |
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Vacuum bellows will isolate vibration in piping between machinery and delicate apparatus.
Paired contacts will self align as they connect to compensate for angular and parallel misalignment |
ㆍMisalignment setup
Angle, offset, flexible interconnect contacts
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ㆍVibration isolation
Vibration isolation in piping between machinery and
delicate apparatus.
Motion into a sealed housing
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| DSI VACUUM BELLOWS Application |
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ㆍISO-KF type
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| Facts & Features |
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Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material
Flange material
Clamp |
D S I vacuum bellows
-200℃ ~ 800℃
<1.0X10-9Pa·m3/s
30%
SUS304, 316, 316L, Hastelloy
SUS304, 316, 316L, Hastelloy
ISO-KF Clamp, Chain Clamp |
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| ※ Special type to order available |
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| 『Specifications』 |
[Unit: mm] |
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Product
code |
Flange
size |
ID |
OD |
ØD |
DV-KK010 |
NW10 |
16.1 |
24.8 |
30 |
DV-KK016 |
NW16 |
20.0 |
28.5 |
30 |
DV-KK025 |
NW25 |
25.3 |
35.5 |
40 |
DV-KK040 |
NW40 |
37.7 |
54 |
55 |
DV-KK050 |
NW50 |
49.8 |
67.5 |
75 |
DV-KK063 |
NW63 |
66.0 |
86.5 |
87 |
DV-KK080 |
NW80 |
78.1 |
101.0 |
114 |
DV-KK100 |
NW100 |
100.3 |
126.5 |
134 |
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ㆍISO-MF type
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| Facts & Features |
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Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material
Flange material
Clamp |
D S I vacuum bellows
-200℃ ~ 800℃
<1.0X10-9Pa·m3/s
30%
SUS304, 316, 316L, Hastelloy
SUS304, 316, 316L, Hastelloy
Single, Double claw clamp |
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| ※ Special type to order available |
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| 『Specifications』 |
[Unit: mm] |
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Product
code |
Flange
size |
ID |
OD |
ØD |
DV-LL063 |
NW63 |
66.0 |
86.5 |
95.0 |
DV-LL080 |
NW80 |
78.1 |
101.0 |
110.0 |
DV-LL100 |
NW100 |
100.0 |
126.5 |
130.0 |
DV-LL125 |
NW125 |
127.2 |
155.5 |
155.0 |
DV-LL160 |
NW160 |
148.6 |
175.5 |
180.0 |
DV-LL200 |
NW200 |
200.2 |
235.0 |
240.0 |
DV-LL250 |
NW250 |
250.3 |
293.0 |
290.0 |
DV-LL300 |
NW320 |
300.0 |
345.0 |
370.0 |
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ㆍISO-Bolted type
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| Facts & Features |
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Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material
Flange material
Bolt hole
Left flange:Rotatable
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D S I vacuum bellows
-200℃ ~ 800℃
<1.0X10-9Pa·m3/s
30%
SUS304, 316, 316L, Hastelloy
SUS304, 316, 316L, Hastelloy
Clearance
Right flange: Non rotatable
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| ※ Special type to order available |
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| 『Specifications』 |
[Unit: mm] |
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Product
code |
Flange
size |
ID |
OD |
ØD |
T |
PCD |
Hole
No.-Ø |
DV-OB063 |
NW63 |
66.0 |
86.5 |
130 |
12 |
110 |
4-9 |
DV-OB080 |
NW80 |
78.1 |
101.0 |
145 |
12 |
125 |
8-9 |
DV-OB100 |
NW100 |
100.0 |
126.5 |
165 |
12 |
145 |
8-9 |
DV-OB125 |
NW125 |
127.2 |
155.5 |
200 |
16 |
175 |
8-11 |
DV-OB160 |
NW160 |
148.6 |
175.5 |
225 |
16 |
200 |
8-11 |
DV-OB200 |
NW200 |
200.2 |
235.0 |
285 |
16 |
260 |
12-11 |
DV-OB250 |
NW250 |
250.3 |
293.0 |
335 |
16 |
310 |
12-11 |
DV-OB300 |
NW320 |
300.0 |
345.0 |
425 |
20 |
395 |
12-13.7 |
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ㆍISO-CF type
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| Facts & Features |
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Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material
Flange material
Bolt hole
Left flange:Rotatable
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D S I vacuum bellows
-200℃ ~ 800℃
<1.0X10-9Pa·m3/s
30%
SUS304, 316, 316L, Hastelloy
SUS304, 316, 316L, Hastelloy
Clearance
Right flange: Non rotatable
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| ※ Special type to order available |
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| 『Specifications』 |
[Unit: mm] |
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Product
code |
Flange
size |
ID |
OD |
ØD |
T |
PCD |
Hole
No.-Ø |
DV-OB063 |
NW63 |
66.0 |
86.5 |
130 |
12 |
110 |
4-9 |
DV-OB080 |
NW80 |
78.1 |
101.0 |
145 |
12 |
125 |
8-9 |
DV-OB100 |
NW100 |
100.0 |
126.5 |
165 |
12 |
145 |
8-9 |
DV-OB125 |
NW125 |
127.2 |
155.5 |
200 |
16 |
175 |
8-11 |
DV-OB160 |
NW160 |
148.6 |
175.5 |
225 |
16 |
200 |
8-11 |
DV-OB200 |
NW200 |
200.2 |
235.0 |
285 |
16 |
260 |
12-11 |
DV-OB250 |
NW250 |
250.3 |
293.0 |
335 |
16 |
310 |
12-11 |
DV-OB300 |
NW320 |
300.0 |
345.0 |
425 |
20 |
395 |
12-13.7 |
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ㆍJIS-VG/VF type
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| Facts & Features |
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Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material
Flange material
Bolt hole
Left flange:Rotatable
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D S I vacuum bellows
-200℃ ~ 800℃
<1.0X10-9Pa·m3/s
30%
SUS304, 316, 316L, Hastelloy
SUS304, 316, 316L, Hastelloy
Clearance
Right flange: Non rotatable
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| ※ Special type to order available |
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| 『Specifications』 |
[Unit: mm] |
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Product
code |
Flange
size |
ID |
OD |
ØD |
T |
PCD |
ØG1 |
ØG2 |
S |
Hole
No.-Ø |
DV-EG020 |
JIS20 |
20.0 |
28.5 |
80 |
8 |
60 |
34 |
44 |
3 |
4-10 |
DV-EG025 |
JIS25 |
25.4 |
35.5 |
90 |
8 |
70 |
40 |
50 |
3 |
4-10 |
DV-EG040 |
JIS40 |
37.7 |
54.0 |
105 |
10 |
85 |
55 |
65 |
3 |
4-10 |
DV-EG050 |
JIS50 |
49.8 |
67.5 |
120 |
10 |
100 |
70 |
80 |
3 |
4-10 |
DV-EG065 |
JIS65 |
66.0 |
86.5 |
145 |
10 |
120 |
85 |
95 |
3 |
4-12 |
DV-EG080 |
JIS80 |
78.1 |
101.0 |
160 |
12 |
135 |
100 |
110 |
3 |
4-12 |
DV-EG100 |
JIS100 |
100.3 |
126.5 |
185 |
12 |
160 |
120 |
130 |
3 |
8-12 |
DV-EG125 |
JIS125 |
127.2 |
155.0 |
210 |
12 |
185 |
150 |
160 |
3 |
8-12 |
DV-EG150 |
JIS150 |
148.6 |
175.5 |
235 |
12 |
210 |
175 |
185 |
3 |
8-12 |
DV-EG200 |
JIS200 |
200.2 |
235 |
300 |
16 |
270 |
225 |
241 |
4.5 |
8-15 |
DV-EG250 |
JIS250 |
250.3 |
293 |
350 |
16 |
320 |
275 |
291 |
4.5 |
12-15 |
DV-EG300 |
JIS300 |
300.0 |
345 |
400 |
16 |
370 |
325 |
341 |
4.5 |
12-15 |
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ㆍISO-KS,JIS-10K Pressure type
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| Facts & Features |
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Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material
Flange material
Bolt hole
|
D S I vacuum bellows
-200℃ ~ 800℃
<1.0X10-9Pa·m3/s
30%
SUS304, 316, 316L, Hastelloy
SUS304, 316, 316L, Hastelloy
Clearance |
Left flange :
Rotatable
Right flange :
Non rotatable |
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| ※ Special type to order available |
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| 『Specifications』 |
[Unit: mm] |
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Product
code |
Flange
size |
ID |
OD |
ØD |
T |
PCD |
Hole
No.-Ø |
DV-SJ020 |
JIS20 |
20.0 |
28.5 |
100 |
14 |
75 |
4-15 |
DV-SJ025 |
JIS25 |
25.4 |
35.5 |
125 |
14 |
90 |
4-19 |
DV-SJ040 |
JIS40 |
37.7 |
54.0 |
140 |
16 |
105 |
4-19 |
DV-SJ050 |
JIS50 |
49.8 |
67.5 |
155 |
16 |
120 |
4-19 |
DV-SJ065 |
JIS65 |
66.0 |
86.5 |
175 |
18 |
140 |
4-19 |
DV-SJ080 |
JIS80 |
78.1 |
101.0 |
185 |
18 |
150 |
8-19 |
DV-SJ100 |
JIS100 |
100.3 |
126.5 |
210 |
18 |
175 |
8-19 |
DV-SJ125 |
JIS125 |
127.2 |
155.0 |
250 |
20 |
210 |
8-23 |
DV-SJ150 |
JIS150 |
148.6 |
175.5 |
280 |
22 |
240 |
8-23 |
DV-SJ200 |
JIS200 |
200.2 |
235 |
330 |
22 |
290 |
12-23 |
DV-SJ250 |
JIS250 |
250.3 |
293 |
400 |
24 |
355 |
12-23 |
DV-SJ300 |
JIS300 |
300.0 |
345 |
445 |
24 |
400 |
16-25 |
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