Metal Expansion Bellows / Rubber Expansion Joints
Expansion Bellows — Rubber Expansion Joints & Metal Bellows Compensators
Zhongsong supplies two families of expansion bellows:
Rubber expansion joints (single and double sphere, with or without control rods, EPDM / NBR / Neoprene / Hypalon, DN25–DN1200, GB/T DIN ANSI JIS BS flanges) absorb vibration, noise and movement in water, HVAC, marine and general industrial lines.
Stainless steel metal expansion bellows (SS304 / SS316L / SS321, axial, lateral, angular and universal types) handle thermal expansion in steam, exhaust and high temperature pipelines where rubber cannot be used.
Both families are made to your size and flange standard. Send us your pipeline data — size (DN), medium, temperature, pressure, movement and quantity — and we will quote within 24 hours on working days.