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4″ Dia. Single Expansion Joint Designed for a Chemical Facility

July 20, 2026

4" Dia. Single Expansion Joint Designed for a Chemical Facility

Type:  Single Expansion Joint with Control rods
Size:  4″ pipe
Material:  304 Stainless Steel | Carbon Steel
Design  150 PSIG at 300°F spring rate of 425 lb./in
Testing:  100% Dye-penetrant | Hydro-tested

U.S. Bellows Designed and fabricated single expansion joints for a chemical processing facility in Canada. Designed for 4-inch piping, each expansion joint accommodates 1 inch of axial movement with a spring rate of 425 lb./in. The units come with covers to protect the bellows during installation and operation. The units also have control rods to prevent any excess movement from the expansion joint and are designed to contain the pressure thrust in case of an anchor failure. The expansion joints are rated for a design pressure of 150 PSIG at 300°F, ensuring reliable performance under demanding operating conditions.

To verify quality and performance, each expansion joint underwent 100% dye penetrant examination and a hydrostatic pressure test prior to shipment, ensuring compliance with the project’s stringent quality requirements and providing the customer with a dependable, high-quality solution.