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ENVIROFLEXID SETHACTABLE PIPING SYSTEM — Pressure ®Enviroflex" Retractable Double Wall Piping System (Pressure) Pages 9-10 The Enviroflex flexible piping system is a proven alternative to rigid piping primarily used for underground fuel storage and conveyance. Its design incorporates continuous piping runs from storage tanks to product dispensers with all fittings visible and accessible from inside a sump. Enviroflex secondary pipe is sized to allow removal of the primary pipe for inspection or replacement during the life of the system without excavation. When used with Total Containment® Tank Sumps, Dispenser Sumps, and fittings, Enviroflex offers an environmentally safe flexible piping system. FB—] Primary Couplings and Washers Page 9 Primary couplings are installed on each end of the flexible primary pipe by certified contractors using the Total Containment Enviroflex Coupling Machine. Each corrosion resistant brass coupling has a swivel connection for easy connection/ disconnection from system components. No elastomeric seals are required with Total Containment Couplings. Metal washers are used with each Coupling to seal primary pipe joints. Fc-1 Primary Adaptors Page 9 Primary adaptors are offered in a wide variety of sizes to transition Enviroflex couplings to female NPT openings on the submersible pump or ball valve. Primary Branch Fittings Page 10 FD-] Primary "Y" and Tee branch fittings are used in sumps. The female NPT opening on the tee accepts a steel riser pipe which threads into the base of the shear valve. The male NPT opening on the "Y" allows it to adapt to submersible pumps and ball valves. Primary 90° Fittings Page 10 )' E Primary 90° fittings are designed for use in termination dispenser sumps to transition the primary pipe run to the steel riser pipe which threads into the shear valve. TOTAL CONTAINMENT. Paoe 3 - Product Cataloa