Key Features
- Stainless steel construction
- Flexible connection capability
- Size adaptation
- Bellows system compatibility
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Adaptor Bellow Flanges
Adaptor Bellow Flanges
Adaptor Bellow Flanges
Adaptor bellow flanges for flexible connections between different size components.
Adaptor Bellow Flange Overview
Adaptor bellow flanges are flanged cast iron components used to connect a PTFE bellow to a flange having a differing bolt configuration. They serve as transition pieces in coupling systems where flange mismatches must be bridged. These adaptors perform similarly to backing flanges but are tailored for bellow interfaces, allowing the flexible connection to mate with flanges of non-matching patterns. They facilitate integration of bellows into broader piping or equipment assemblies where flange geometry differs.
Specifications
Key technical features and options:
– **Material**: Cast iron is typical to provide mechanical strength and rigidity
– **Bolt Pattern Adaptation**: One side matches the bellow flange; the other side can be drilled to match a non-matching flange standard
– **Split Ring Feature**: Often supplied with a split ring for insertion and seal interface
– **Undrilled Default / Optional Drilling**: Provided undrilled by default; customers can request drilling to standard flange patterns (Table E, Table F, ASA 150)
– **Dimensional Coverage**: Available across multiple nominal diameters with corresponding outer diameters, thickness, bolt hole circles
– **Mechanical Alignment**: Designed to minimize misalignment and bending stress on the connected bellow or flange
– **Customization Capability**: Adaptable to specific configurations as per process or equipment requirement
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Applications
Use cases for adaptor bellow flanges include:
– Connecting bellows to existing metal flanges with different bolt patterns
– Integrating PTFE bellows into pre-existing plant piping without re-machining mating flanges
– Supporting modular flexible coupling in glass-to-metal transitions
– Retrofitting installations where flange geometries do not align
– Use in vacuum, pressure, or reactive chemical systems requiring bellow flexibility while maintaining structural continuity
These adaptors allow system designers to retain the benefits of bellows flexibility while accommodating flange mismatches in complex installations.