DN250 Reinforced Rubber Expansion Joint Single Ball EPDM Bellows Expansion Joint

DN250 EPDM Single Ball Reinforced Rubber Bellow Flexible Expansion Joint movable lug with tie rod

A rubber joint with tie rods is a type of flexible pipe connector designed to absorb movements, reduce vibration, and compensate for misalignment in piping systems. The tie rods are structural components used to limit the movement of the joint caused by internal pressure or external forces, preventing overextension or damage.

• Made from elastomers like EPDM, Neoprene, or Nitrile
• Flexible and can absorb axial, lateral, and angular movements
• Often reinforced with nylon or fabric plies

• Typically carbon steel, stainless steel, or ductile iron
• Connect to the piping system

• Steel rods installed across the flanges
• Prevent excessive elongation or compression of the rubber body due to internal pressure
• Typically include washers and nuts for adjustment and load distribution

• Restrict axial movement (expansion/contraction)
• Prevent pull-out due to internal pressure thrust forces
• Protect adjacent equipment by limiting stress transfer
• Increase safety and longevity of the joint and piping

• Pressure rating of the rubber joint
• Number and size of tie rods based on thrust force
• Material compatibility with the fluid and environment
• Movement capacity (axial, lateral, angular)

• HVAC systems
• Pump and compressor connections
• Industrial piping (chemical, water, wastewater)
• Marine and power generation systems