PTFE Bellows (Glass to Glass),PTFE Bellows (Glass to Glass) Manufacturers in India, Glass Equipments, Glass Assembly Shiva Scientific Glass Pvt. Ltd. ISO 9001:2015 certified Company

PTFE Bellows (Glass to Glass)



These bellow are used in installation of glass equipment for following purpose :

  • 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 bellow
These can withstand a temperature of 200ºC 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 pipeline of 80DN and 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 upto 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
3.0
VB4*
100
200
132
11
70
5
3.5
VB6*
150
275
184
162
70
5
4.0
VB9*
225
350
253
230
70
5
5.0
VB12*
300
420
338
308
70
5
5.0

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