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Introduction  

DSI super bellows is a component that must offer hermetic properties as well as outstanding expandability. This bellows have characteristics of formed bellows and welded bellows.
We have applied super bellows to a various fields even if customers already use welded bellows.
Many customers prefer super bellows because the quality and price is more competitive.

 

 Specifications of super bellows

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

Products code

16A

20A

22A

25A

30A

40A

50A

60A

65A

80A

100A

125A

150A

200A

250A

300A

ID

16.1

20.0

22.0

25.3

31.0

37.7

49.8

60

66

78.1

100.3

127.2

148.6

200.2

250.3

300.0

OD

26

30.5

33.5

38.5

46

56

69

81.5

90

104

132

160

188

250

306

352

Leakage rate

<1.0X10-10Pa·m3/s

Elasticity

50%~70%

Length

2 Meter

Temp

-200℃ ~ 800℃

ㆍDurability
‘Super bellows is strong to repeated motion so we guarantee the life cycle from 5,000 to 1,000,000. Life cycle is depends on the environment.

ㆍCharacteristic of spring
‘DSI super bellows has the property of precision spring by DSI technology.
Especially, normal length is not changed when super bellows is compressed because stability is excellent.

ㆍVolume
‘This bellows show like a welded bellows stroke nevertheless this bellows is formed bellows. There are many application examples. Just contact us.

 
Technical information  

DSI super bellows is suitable at the ultrahigh vacuum environment.

ㆍPRESSURE RESPONSIVE DEVICES
Pressure switches, Pressure gauge
Pressure-electric transducers

ㆍLIQUID EXPANSION ABSORBING BELLOWS
Hydraulic multiplier remote transmission

   

ㆍMETALLIC SEALS FOR MOTION
Laboratory vacuum system
Manipulators, Chamber transport

ㆍBELLOWS VALVE
Bellows sealed valve, Angle valve, Inline valve
Outline valve
 
SUPER BELLOWS FOR VALVE  

   
ㆍValve stem bellows
Facts & Features
Bellows
Temperature
Elasticity of bellows
Leakage rate
Bellows material
Flange material
Life cycle
D S I super bellows
-200℃ ~ 800℃
50%~70%
<1.0X10-9Pa·m3/s
SUS304, 316, 316L, Hastelloy
SUS304, 316, 316L, Hastelloy
5X103 ~ 1X106
※ Special type to order available
『Specifications』 [Unit: mm]

Product
code

ID

OD

L

16AV1

16.1

26

40.6

16AV2

16.1

26

104

20AV1

20

30.5

68.5

22AV1

22

33.5

90

25AV1

25.3

38.5

65

25AV2

25.3

38.5

103

25AV3

25.3

38.5

106.5

25AV4

25.3

38.5

135.5

30AV1

31

46

108

30AV2

31

46

118

30AV3

31

46

128

30AV4

31

46

145.5

40AV1

37.7

56

93

40AV2

37.7

56

139

50AV1

49.8

69

138

50AV2

49.8

69

147

65AV1

66

90

133

65AV2

66

90

156

65AV3

66

90

233

65AV4

66

90

237.5

65AV5

66

90

248.5

80AV1

78.1

104

286

100AV1

100.3

132

172

100AV2

100.3

132

213

100AV3

100.3

132

286

 
     
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