Dynamic Sealing Technologies Inc


DSTI is a global leader in rotary unions, swivel joints, and rotary couplings used to provide reliable fluid transfer for rotating applications.

Contact Information

13829 Jay Street NW
Andover, Minnesota
United States, 55304

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Dynamic Sealing Technologies, Inc. (DSTI) specializes in designing and manufacturing fluid Rotary Union & Swivel Joint Products for a wide range of Industries Worldwide. DSTI's rotary union products are used to transfer hydraulic oil, chemicals, water, air and a variety of other liquids and gases from stationary inlets to rotating outlets. DSTI offers a comprehensive line of standard rotary union products and options in addition to providing complete specialized rotary union engineering services including design, simulation, manufacturing, assembly, and testing. 

DSTI’s fluid swivel products for coiled tubing and hose reel applications include: 

Single passage, high pressure frac fluid / drilling mud swivel joints Multiple passage hydraulic swivel joints with optional electrical slip ring integration Shaft mounted safety plug valve swivel joints. 

The people behind DSTI are exclusively dedicated to the design & manufacturing of high performance rotary union / swivel joint products. The engineers, production staff, and assembly technicians are committed to providing rotary unions that offer unmatched reliability, precision, and performance. By concentrating on a single type of product, DSTI has become a leader in the design and production of rotary union assemblies.

DSTI is dedicated to engineering, manufacturing and testing their products completely in-house to assure the highest in quality and performance. The engineering department exclusively uses the latest generation CAD/CAM technology in conjunction with advanced CNC machining centers. Our exclusive high performance dynamic seals are manufactured in-house to assure strict quality control. DSTI’s commitment to innovation ensures the high quality standards in place will continue to be met.


Toll Free 866.700.3784

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