SSI Aeration Private Limited

• Rigid Bolts Expansion Joints are mechanical devices designed to absorb and accommodate the thermal expansion or contraction of pipes, ducts, or other systems that carry fluids or gases. These expansion joints are typically used in high-pressure environments and are designed to be robust and durable. They consist of a combination of flexible materials and rigid bolts, providing an effective solution for compensating movements that can occur due to thermal changes or mechanical forces.

• Expansion Joints are available in a positive locking design or in flexible PVC with a stainless steel shell. SSI recommends the flexible expansion joints for disc installations and the positive locking type for tube diffuser projects.
• Pictured at right is the universal traveling union expansion joint used to join plastic piping lengths together. These are header pipes in the aeration system (onto which either disc or tube diffusers are mounted).

Slotted Band:

• Slotted band joints with stainless steel shear rings are suitable for disc fine bubble and cap coarse bubble lateral plastic piping systems, in conjunction with SSIs fixed and guide support stand system to manage thermal expansion and contraction.

Rigid Bolt Joint:

• SSIs heavy duty expansion joint provides a double O-ring to prevent rotation, and allows limited longitudinal travel to absorb plastic pipe expansion and contraction.