Manufacturers of the Metraloop expansion loop and Cablesphere expansion joint, Metraflex makes a variety of specialty piping products, including expansion joints, expansion compensators, flow meters, wall penetration seals, pipe guides and pump connectors. In addition, the company s engineering staff can help customers with special applications, tailoring its line of products to customers specific needs. The company provides a variety of products, including elastomers, such as metraspheres, doublespheres, spool types, concentric reducers and rubber pipes; pump connectors; Metraloop expansion loops; fireloops for fire sprinkler systems; expansion compensators; metal expansion joints; pipe guides; vibration isolation materials, such as springs, spring mounts, spring hangers and ceiling hangers; pipe penetration seals; strainers, including smart strainers, basket-type strainers, Y-type strainers and suction diffusers; and valves. Metraflex is headquartered in Chicago.