• Stainless steel construction
• Bellows connection design
• Flexible system compatibility
• Precision machined

Key technical details include:

– **Material Options**: Cast iron (plain or epoxy coated), aluminium, silumin, or stainless steels (304/316)

– **Hole Pattern & Drilling**: Supplied with bolt hole pattern, may include extra holes for distance locking bolts (commonly two holes at 180°)

– **Dimensional Variants**: Flange diameters, bolt circles, thickness, and bore sizes tailored to DN and bellow geometry

– **Split Ring Inserts**: Usually paired with a matching split ring to provide seal with the flange-bellow interface

– **Travel Limiting Bolts**: Provision for lock bolts to prevent over-extension or over-compression of the bellow

– **Customization**: Ability to conform hole pattern per standard (Table E, Table F, ASA 150) upon request

– **Compatibility**: Designed to mate correctly with PTFE bellows end geometry and matching mating flanges

– **Mechanical Strength**: Must support stresses from connected piping or thermal cycles without deforming the assembly

Bellow flanges are used in all coupling assemblies that include bellows. Typical use cases are:

– Mounting PTFE bellows within glassware pipelines

– Providing a rigid connection point for bellows to glass or metal flanges

– Systems requiring flexible coupling to absorb vibration or thermal expansion

– Modular glass networks that integrate bellows for flexibility

– Projects involving chemical or corrosive fluids where bellows provide the seal

Because flanges are structural components, bellow flanges are inherently part of systems relying on flexible coupling and sealing.