GLASS TO GLASS

These bellows are used in installation of glass equipment for following purposes :

- to provide safe branching of pipelines from the main glass equipment.
- to accommodate odd degrees and variation in length.

Bellows are supplied along with required bellow flanges and nut-bolts. Distance-locking bolts are provided to avoid excessive compression or contraction of the bellow. Gaskets are not required where bellows are used. For drilling details, refer "Bellow flanges".

Line bellows

These can withstand a temperature of 200°C under normal atmospheric conditions.

Cat.Ref.

DN

D

D1

D2

L

FBN1*

25

95

41

31

60

FBN1.5*

40

105

56

43

65

FBN2*

50

120

69

55

65

FBN3*

80

155

98

82

65

FBN4*

100

200

132

111

65

FBN6*

150

275

184

162

65

FBN9*

225

350

258

230

65

FBN12

300

420

340

308

65

 


Vacuum bellows

For pipelines of 80DN and above operating under vacuum, the bellows are provided with an internal sleeve which supports the convolutions without affecting the flexibility of the bellow. These bellows can withstand a temperature of 200oC under full vacuum. For size up to 50DN, line bellows can be used for these applications

Cat.Ref.

DN

D

D1

D2

L

L1

t

VB3*

80

155

98

82

70

5

3

VB4*

100

200

132

111

70

5

3.5

VB6*

150

275

184

162

70

5

4

VB9*

225

350

253

230

70

5

5

VB12

300

420

338

308

70

5

5