HANOVER, Maryland – Thermal Science Technologies (TST) has been awarded a $4.7M subcontract by Reliance Construction Management Co. (Wake Forest, NC) for the thermal restoration of buried high-temperature hot water piping at the National Institute of Environmental Health Sciences (NIEHS) campus in Research Triangle Park, NC.

work includes the thermal restoration of 12,120 LF (2.3 miles) of HTHW supply and return piping utilizing TST’s patented ConduFill^® technology. Most of the buried distribution piping was installed over 40 years ago and the original insulation within the piping system has significantly deteriorated over time. 

ConduFill^® is a non-intrusive restorative process that will seal and revitalize the thermally-inefficient network of piping on campus. A rigid, polyisocyanurate foam insulation will be strategically injected into the annular space between the carrier pipe and the outer steel casing of the piping system while it remains in service. ConduFill^® is designed to withstand operating temperatures up to 400˚F (204˚C) on a continuous basis. 

“TST has been working with the Facilities Management Branch at the RTP site for more than two years to develop this much-needed thermal restoration project and we were thrilled to learn that they were able to fund the project through an existing Construction, Renovation, Design-Build MATOC program,” said Vice President of Business Development Toby Leach. “TST is extremely pleased to partner with Reliance Construction Management Co. to extend the life of the piping system and help the facility avoid costly pipe replacement.”

The project got underway in May of 2020 and is expected to take approximately 10-12 months.