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ㆍHome > Products > Vacuum bellows   
 
Introduction  

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.

 

VACUUM BELLOWS Specifications
Material: SUS304, 316, 316L 【Unit: mm Outside tolerance:±0.3】

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℃

 
Technical information  

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

ㆍVibration isolation
Vibration isolation in piping between machinery and
delicate apparatus.
Motion into a sealed housing

 
DSI VACUUM BELLOWS Application  

   
ㆍISO-KF type
Facts & Features
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
※ Special type to order available
『Specifications』 [Unit: mm]

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

   
ㆍISO-MF type
Facts & Features
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
※ Special type to order available
『Specifications』 [Unit: mm]

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

   
ㆍISO-Bolted type
Facts & Features
Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material

Flange material

Bolt hole
Left flange:Rotatable

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
※ Special type to order available
『Specifications』 [Unit: mm]

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

   
ㆍISO-CF type
Facts & Features
Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material

Flange material

Bolt hole
Left flange:Rotatable
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
※ Special type to order available
『Specifications』 [Unit: mm]

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

 
ㆍJIS-VG/VF type
Facts & Features
Bellows
Temperature
Leakage rate
Elasticity of bellows
Bellows material
Flange material
Bolt hole
Left flange:Rotatable
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
※ Special type to order available
 
『Specifications』 [Unit: mm]

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

   
ㆍISO-KS,JIS-10K Pressure type
Facts & Features
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
※ Special type to order available
『Specifications』 [Unit: mm]

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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