PTFE Bellows (Glass to Metal)

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

to minimize the transfer of vibrations from the rotating equipments which are connected to the glass assembly.
to accommodate the thermal expansion of any metallic (non-glass) equipment which are connected to the glass pipeline.

These are similar to the bellows for glass-to-glass in construction, but having a adaptor bellow flange at one end. Generally this adaptor flange is supplied undrilled so that it can be drilled as per the configuration of mating flange. However, this adaptor bellow flange can be supplied drilled as per Table , Table or SA 150 standards if specified.

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Line bellows

Cat.Ref. Undrilled	Cat.Ref. Table E	Cat.Ref. Table F	Cat.Ref. ASA 150	DN	D	L
FBF1*	FBF1/E	FBF1/F	FBF1/A	25	115	60
FBF1.5*	FBF1.5/E	FBF1.5/F	FBF1.5/A	40	150	65
FBF2*	FBF2/E	FBF2/F	FBF2/A	50	165	65
FBF3*	FBF3/E	FBF3/F	FBF3/A	80	200	65
FBF4*	FBF4/E	FBF4/F	FBF4/A	100	220	65
FBF6*	FBF6/E	FBF6/F	FBF6/A	150	285	65
FBF9*	FBF9/E	FBF9/F	FBF9/A	225	395	65
FBF12	FBF12/F	FBF12/F	FBF12/A	300	445	65

Vacuum bellows

Cat.Ref. Undrilled	Cat.Ref. Table E	Cat.Ref. Table F	Cat.Ref. ASA 150	DN	D	L
VBF3*	VBF3/E	VBF3/F	VBF3/A	80	220	70
VBF4*	VBF4/E	VBF4/F	VBF4/A	100	220	70
VBF6*	VBF6/E	VBF6/F	VBF6/A	150	285	70
VBF9*	VBF9/E	VBF9/F	VBF9/A	225	395	70
VBF12	VBF12/E	VBF12/F	VBF12/A	300	445	70