Key Features
- PTFE construction
- Flexible connection capability
- Glass-to-glass compatibility
- Chemical resistant
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PTFE Bellows – Glass to Glass
PTFE Bellows – Glass to Glass
PTFE Bellows – Glass to Glass
PTFE bellows for flexible glass-to-glass connections with excellent chemical resistance.
PTFE Bellows (Glass-to-Glass) Overview
PTFE bellows for glass-to-glass connections are flexible connectors installed between glass segments to allow movement, absorb misalignment, and manage thermal expansion. These bellows preserve the vacuum or pressure integrity of glass systems while providing mechanical flexibility. They are offered along with bellow flanges and nut-bolt sets and include distance locking bolts to prevent excessive compression or extension under operation. Gaskets are typically not required where bellows are used, as the convoluted PTFE structure itself provides sealing.
Specifications
Technical attributes and options include:
– **Material**: PTFE, chosen for chemical inertness and flexibility
– **Convolution Design**: Number, shape, and wall thickness of convolutions tuned to desired flexibility and movement
– **Effective Length & Travel**: Designed to allow certain axial, lateral, or angular deviations
– **Flange Interfaces**: Bellows supplied with matching bellow flanges and nut-bolt sets for connection
– **Distance Locking Bolts**: Incorporated to prevent over-compression or over-extension beyond design limits
– **Temperature & Pressure Range**: Suitable for operation within typical PTFE limits and moderate pressures or vacuum, as design allows
– **Vacuum Variants**: For sizes ≥ DN 80 under vacuum, an internal support sleeve may be used to avoid collapse.
– **Misalignment Capability**: Can accommodate small misalignments in installation
– **Customization**: Flange drilling may follow standard patterns or customer specifications
Applications
Glass-to-glass PTFE bellows are suited for:
– Joining glass pipeline segments where flexibility or movement is required
– Accommodating angular or linear misalignment in glass networks
– Branching pipelines from main glass manifolds
– Increasing ease of installation in modular glass systems
– Use in vacuum or pressure apparatus in chemical, pharmaceutical, and research equipment
– Environments with thermal cycling or vibration where rigid glass coupling would be fragile
These bellows deliver both mechanical resilience and sealing performance in delicate glass assemblies.