The Expansion Joints Blog

Expansion Joints for a Heat Exchanger Company in Japan

These expansion joints were fabricated from ASTM-A-240 Type 321 stainless steel bellows and liners. The shell material is ASTM-A-516 Grade 70. They are 32 diameter with an overall length of 26. Each joint weighs 280 lbs. They were designed for 150 PSIG at 650F with a travel capacity of 0.33 axial compression and 0.08 lateral deflection. These expansion joints absorb differential expansion between the shell side and tube side of a heat exchanger. They were hydrostatically tested to 208 PSIG to comply with the Japanese code, Ministry of Health, Labor and Welfares (MHLW) and the ASME Pressure Vessel Code Section VIII.