Notice of Intent to Sole Source, Purchase of Hydraulic Rotary Union for the ERDC... Tender

Procurement Summary

Country : USA

Summary : Notice of Intent to Sole Source, Purchase of Hydraulic Rotary Union for the ERDC Centrifuge

Deadline : 10 Jul 2025

Other Information

Notice Type : Tender

TOT Ref.No.: 122051193

Document Ref. No. : W912HZ25N4539

Financier : Self Financed

Purchaser Ownership : Public

Tender Value : Refer Document

Purchaser's Detail

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Tender Details

Description

The U.S. Army Corps of Engineers Research and Development Center (ERDC), Geotechnical and Structures Laboratory (GSL) intends to issue a Firm Fixed Price (FFP) single source award to Dynamic Sealing Technologies, LLC, 13829 Jay ST NW, Andover, Minnesota for the purchase of Hydraulic Rotary Unions for the ERDC Centrifuge.

The Engineer Research and Development Center (ERDC), Geotechnical and Structures Lab (GSL) requires a new hydraulic rotary union to support ongoing research in the Centrifuge Research Complex (CRC). The rotary union is used to transfer hydraulic oil, chemicals, water, air, and a variety of other liquids and gases during spinning centrifuge operations. On the ERDC large beam centrifuge, the hydraulic rotary union is essential to both the auto-balance system and the on-board earthquake shake table. The current rotary union was installed in 2010. It has undergone two major service updates, one in 2016 and again 2022. In 2025 the high-pressure channel seal failed during commissioning of a new piece of equipment. Failure of the CRC 15-year-old rotary union is attributed to its service life ending. This requirement is to replace the hydraulic rotary union. The ERDC large-beam centrifuge is a unique piece of equipment and the junction between the hydraulic rotary union and the centrifuge is one-of-a-kind. The replacement rotary union will need to be designed and tooled specifically to match the existing, in-place centrifuge, multiple hydraulic power units, and water/air supply systems. Dynamic Sealing Technologies (DST) possesses unique expertise in the assessment, maintenance, and repair of hydraulic rotary joints and specifically designed and manufactured the last hydraulic rotary joint attached to the ERDC-s large-beam centrifuge, of which there are only two in the world. Because of the centrifuge-s rarity, a one-off rotary joint will have to be produced to match the existing interfaces between the centrifuge, two different hydraulic...
Active Contract Opportunity
Notice ID : W912HZ25N4539
Related Notice
Department/Ind. Agency : DEPT OF DEFENSE
Sub-tier : DEPT OF THE ARMY
Major Command : US ARMY CORPS OF ENGINEERS
Sub Command : SCO ALExANDRIA
Office: W2R2 USA ENGR R AND D CTR
General Information
Contract Opportunity Type: Special Notice (Original)
Original Published Date: Jul 03, 2025 04:28 pm CDT
Original Response Date: Jul 10, 2025 12:00 pm CDT
Inactive Policy: 15 days after response date
Original Inactive Date: Jul 25, 2025
Initiative: None

Classification
Original Set Aside:
Product Service Code: 6680 - LIQUID AND GAS FLOW, LIQUID LEVEL, AND MECHANICAL MOTION MEASURING INSTRUMENTS
NAICS Code: 333613 - Mechanical Power Transmission Equipment Manufacturing

Place of Performance:

Documents

 Tender Notice