Unico Mechanical wins hydraulic rehabilitation contract


The United States Army Engineering Core, Tulsa District, selected Unico Mechanical Corp to rehabilitate two 180-inch Butterfly Valves (BFVs) at the Tenkiller Dam Power Plant in Gore, Oklahoma.

The $ 4.9 million contract will cover the removal of existing OEM metal seats and the installation of a “CIRCLOC” seal kit, a technology proprietary to Hartman Valve Company. CIRCLOC uses an integrated elastomeric rubber seal, creating a positive and resilient seal. Unico will manufacture the new components of the CIRCLOC seal assembly at its California facility, and Unico’s field service team will perform all specialist field installation work to overhaul both BFVs on site during a six-week shutdown in early 2022.

Unico’s engineering and field service team will also perform on-site function and performance tests for the two 180-inch butterfly valves upon completion of overhaul.

“We are proud that the Army Core of Engineers has approved our team and entrusted us with this large-scale and complex butterfly valve rehabilitation project,” said Randy Potter, President and CEO of Unico Mechanical. “Our team brings decades of experience in overhauling large-scale hydroelectric valves, including past projects for the Army Engineers Core and the Bureau of Reclamation, so this project is an ideal fit. essential to the success of the project that the engineering, manufacturing and installation of all components be managed and executed by a single entity to ensure the smooth running of the project and its completion on time and to specification. more big valves in the hydropower market than any other party and this experience is essential There is no substitute for the knowledge and experience gained from doing similar work.

“We have seen a dramatic increase in hydropower flow control overhaul projects in recent years and have stepped up our activity to meet increased needs as the rehabilitation of our country’s hydropower infrastructure is underway. . Earlier this year we acquired several companies including Accurate Machining, this allowed us to expand our field service team with some of the most experienced field machinists in this industry. “

The Tenkiller Dam valve renovation of the two 180-inch butterfly valves includes new gearboxes and controls, lubrication systems and valve bypass systems. Unico Mechanical will provide all contract related services with its own highly skilled craftsmen and in-house technical support.

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