Utilizing teaming partner relationship to help mitigate obsolescence issues in a safety-related system

The on site emergency power supply at a nuclear power plant is of the utmost importance to ensure uninterrupted power during a design basis event. This system must offer redundancy and be independent from the main supply. Most plants use an Emergency Diesel Generator as the on-site emergency power supply. Fuel supply to the generator is a critical part of this system and Energy Steel offers Emergency Diesel Oil Transfer Pumps for this application.

A North American nuclear power plant needed to replace their existing pumps due to the age and condition of the original equipment. The original manufacturer (Crane Deming) no longer offers a nuclear qualified pump. Energy Steel works with the original OEM to continue to supply this Safety Related pump, using their quality program, to avoid plant obsolescence issues. Energy Steel worked diligently with their teaming partners to offer a like for like replacement for the original equipment that was supplied in 1992.

The pump was designed to ASME Section III, Subsection ND, Class 3 complying with the original design report and certified as like-for-like. Due to the pump being safety related it required a safety related pump test to prove it could match the required hydraulic performance of the originals. Energy Steel utilized their sister company, Hayward Tyler, to perform the safety-related testing at their nuclear qualified facility.