Our Products
Accessories & Options
Athulya supplies a full range of control units, liners, covers, insulation, rings, hardware and guards to optimize performance, safety, and service life of metallic bellows, rubber joints, fabric/duct joints, and flexible metal hose assemblies. Accessories are engineered per project and delivered in line with EJMA/ASME practices.
Key Points
• Restrain pressure thrust and define movement with tie/limit control units.
• Protect flow path and bellows with internal sleeves/liners in high velocity/particulate service.
• Shield & insulate with external covers and removable insulation jackets for hot services & personnel safety.
• Preserve geometry under vacuum (vacuum support rings on rubber joints) and during transport (shipping rods/preset bars).
• Enhance durability on hoses with braid selection, armor/spring guards, bend restrictors and fire sleeves.
• Secure fabric joints using clamping frames with backing & clamp bars, pillows, and liners for ducts.
Technical Data (Overview)
| Accessory / Option | Purpose / Function | Compatible Products & Notes |
|---|---|---|
| Tie Rods / Limit Rods (Control Units) | Restrain pressure thrust; limit/define movement | Universal/Lateral/Tied/Pressure-Balanced/Exhaust; clevis or spherical ends; project-specific sizing |
| Internal Flow Liner / Sleeve | Protect bellows from velocity/particulate; stabilize flow | Metallic bellows & exhaust service; increases face-to-face length; material per medium/temperature |
| External Protective Cover | Mechanical/weather shielding; personnel safety | All metallic bellows; removable for inspection; CS/SS with coatings as specified |
| Insulation Jacket / Cladding | Thermal shielding, energy retention, touch-safe | Hot services on metallic bellows & exhaust; removable jackets per site maintenance needs |
| Shipping Rods / Preset Bars | Maintain preset during handling and installation | Metallic bellows & pressure-balanced units; remove after installation per instructions |
| Vacuum Support Rings | Prevent arch collapse under vacuum | Rubber expansion joints; ring material per service; used when vacuum duty is specified |
| Backing Flanges | Load distribution for integral rubber flanges | Rubber joints; CS/SS backing flanges; drilling ANSI/EN/IS or client standard |
| Clamping Frames, Backing & Clamp Bars | Gas-tight belt clamping/sealing on ducts | Fabric/duct joints; CS/SS frames; edge finish & gasketing per sealing spec |
| Insulation Pillow (Fabric Joint) | Thermal barrier to protect belt stack | Fabric/duct joints; density/thickness per gas temp; used with flow liners for hot/abrasive gas |
| Flexible Hose Armor / Spring Guard | Abrasion protection; bend support | Flexible metal hose assemblies; used with single/double braid; route to maintain min. bend radius |
| Fire Sleeve (Hose) | Thermal/fire protection | Flexible metal hose; sleeve selection per temperature exposure and environment |
| Gimbal / Hinge Hardware | Allow angular rotation while restraining thrust | Gimbal & hinged bellows; pins, lugs, arms sized to design loads; single-plane (hinge) or multi-plane (gimbal) |
| Balancing Tie System | Self-cancel pressure thrust | Pressure-balanced inline & elbow units; flow + balancing bellows linked via tie/torque hardware |
| Surface Protection / Coatings | Corrosion/weather protection | CS hardware, covers & frames; paint, zinc or client-specified systems; SS where required |
All selections are engineered per project (size, load, temperature, medium, velocity). Detailed datasheets supplied with order.
Design & Material Options
• Hardware in CS or SS; coatings per spec.
• Liners/covers in CS/SS or alloy; thickness per duty.
• Control units with clevis/spherical ends; removable pins.
• Fabric belts: PTFE/fluoropolymer, silicone-glass, EPDM/neoprene composites with pillows & liners.
• Hose guards: interlocked armor, spring guard, fire sleeve; bend-radius markers.
Quality & Testing
• Hydro/pneumatic and leak checks as specified; dimensional verification.
• Optional DPT on welds, helium leak, and cycle testing for metallic joints and hoses.
• Material traceability and documentation available on request.
Prefer a quick review? Email your specs to sales@athulyabellows.com.