SAM #FMP-NNL-0047

RFI: Water Valve Leak Mitigation Solutions for Pure Water Systems

The Naval Nuclear Laboratory (NNL), managed by Fluor Marine Propulsion (FMP) for the Department of Energy (DOE), is seeking information on innovative solutions for water valve leak mitigation during maintenance of pure water fluid systems. - Government Buyer: - Department of Energy (DOE) - Naval Nuclear Laboratory (NNL), operated by Fluor Marine Propulsion (FMP) - OEMs and Vendors: - No specific OEMs or vendors are named in the request - Products/Services Requested: - Solutions to prevent water leakage past valves during maintenance or welding on pure water systems - No specific products, part numbers, or quantities provided - Unique/Notable Requirements: - Solution must not affect pure water chemistry or compromise stainless-steel corrosion/cracking resistance - No introduction of devices or materials that require removal after repair - Solution must be external, fully dissolvable into known constituents at room temperature, or otherwise non-intrusive - Intended for use during maintenance or welding activities - This is a market research RFI, not a solicitation for a specific product or service

Description

THIS IS A REQUEST FOR INFORMATION ONLY.  THIS IS NOT A SOLICITATION.

This notice is issued solely for informational and planning purposes. This notice does not constitute a solicitation. The Naval Nuclear Laboratory (NNL), operated by Fluor Marine Propulsion (FMP), is utilizing this request for information for market research to determine what organizations have the capability to fulfill this requirement.  NNL will not be responsible for any costs incurred by interested parties in responding to this request for information.

Responses shall not exceed five (5) pages in length.

Scope:

When performing maintenance on a pure water fluid system, valves are commonly used for work area isolation.  Valves that have been in-service can leak past their seats.  In this case, the worker may still be protected from hazardous energy on the other side of the valve but work such as welding might not be possible if water is being continually introduced to the work area.  In this case, more valves can be used if available in the system design, but if not, freeze seals are commonly used to eliminate leakage.  Freeze seals can consume significant work and resources to set, so alternate means to mitigate water leakage past valves is desired.

A method to mitigate valve leak-by for the hours or days a system is open for maintenance or the time to perform a weld is desired which will not affect pure water chemistry or stainless-steel corrosion or cracking performance.  The method must not introduce devices or materials that require removal from the system after repair is completed.  Solutions must either be external to the system, completely dissolve into known and consistent constituents at room temperature, or otherwise non-intrusive.

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