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U.S. Bellows manufactured this single expansion joints for a refinery in Korea. The bellows were fabricated from 304 stainless steel and the frame from carbon steel. The expansion joint is 8″ diameter and 18-½” long. It is designed for an operating temperature of 338°F at 51 psig, with an axial movement of 1¾”, and a spring rate of 225 lb./in. The bellows were 100% X-rayed, dye-penetrant examined, and hydro-tested prior to shipment.

These single expansion joints were custom engineered for an oil and gas facility in Texas. The bellows, liner, and cover are fabricated from 304 stainless steel, while the flanges and tie rod assemblies from carbon steel. The units are 30″ in diameter, 24″ face-to-face and include control rods. They are designed for an operating temperature of 800°F at 275 psig and 1″ of axial compression. All expansion joints were hydro-tested prior to shipment.