Water Valve Leak Mitigation

The Naval Nuclear Laboratory (NNL) is seeking information on methods to mitigate water valve leak-by during maintenance on a pure water fluid system. The goal is to find a solution that does not affect pure water chemistry or stainless-steel corrosion or cracking performance. The method must be external to the system, completely dissolve into known and consistent constituents at room temperature, or otherwise non-intrusive. • The solution must not introduce devices or materials that require removal from the system after repair is completed. • The solution must not affect pure water chemistry or stainless-steel corrosion or cracking performance. • The solution must be external to the system, completely dissolve into known and consistent constituents at room temperature, or otherwise non-intrusive.