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Project Report

Discharge Ring Refurbishment Project Report

Rock Island Powerhouse No. 1 | Unit B8 | Rock Island, Washington

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Completed project view showing the bottom ring seat and discharge ring from above.
Fig 1

INTEGRATED HYDRO FIELD SERVICES

Mechanical Site Labor | Weld Repair | Precision Field Machining | Outage Execution

The Challenge: A Complex Embedded-Component Refurbishment

Lower Discharge Ring Insert Segments Installed 2
Lower discharge ring insert segments installed during the refurbishment sequence.

The project combined large-diameter field machining, stainless steel weld overlay, insert installation, grouting and inspection support with multiple precision hold points. The field team also responded to unforeseen as-found conditions in the discharge liner while maintaining an intensive two-shift, seven-day-per-week schedule.

Precision

Machine setup and machining remained tied to the district-established unit centerline.

Coordination

Machining, welding, insert installation, grouting and inspection were sequenced around defined hold points.

Continuity

Two shifts operating seven days per week sustained progress through the complete repair sequence.

EXECUTION REQUIREMENT

Maintain dimensional control, quality documentation and schedule continuity while integrating multiple interdependent repair disciplines in the field.

The Solution: Integrated Welding, Machining and Field Execution

Weld Overlay In Progress 2
Stainless steel weld overlay in progress before finish machining to the required contour and diameter.
Fig 3

WHY THE APPROACH WORKED

Bender CCP combined mechanical installation, specialty machining, automated weld-overlay capability, field coordination and quality documentation within one continuous execution plan.

The Result: A Major Hydro Refurbishment Delivered in Approximately Four Months

Fig 4

About Bender CCP

Bender CCP, Inc. is a full-service provider of hydroelectric turbine services, rotating equipment repair, field machining, welding and fabrication, precision measurement, millwright services, and engineered maintenance solutions. Serving the hydropower, power generation, marine, water infrastructure, and industrial markets, Bender CCP delivers comprehensive shop and field services throughout North America.

Media inquiries and interview requests:
Dylan Robinson (951)440-0889

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