Welcome to Advanced Thermal Systems Inc

Advanced Thermal Systems, Inc. is a world leader in the design and manufacturing of packed slip type expansion joints and ball joints; as well as low friction pipe supports and guides. Since it’s founding in 1968, ATS has been recognized as the “Industry Innovator” in the design and development of packed type flexible expansion joints and ball joints. Essentially all technical improvements to both slip and ball type expansion joints since 1968 have been introduced by ATS.

At ATS we are committed to provide our Customers with products and services of such excellence that ATS will become their natural choice. Our objective is to perform all activities with total dedication to quality. The term quality includes; the quality of the Company’s products, services and communications to the various audiences dealt with in the course of doing business.

The ATS manufacturing facility is located in Lancaster, New York. All of the items produced by ATS are manufactured at this facility including all forming, machining and welding. ATS maintains a large inventory of pre-machined components that can quickly be assembled when a short delivery is required.


At ATS our Engineering staff utilizes the latest computer technologies and software to review and optimize each system and component. CAEPipe Pipe Stress Analysis software, as well as AutoCAD are used extensively.

Engineering Services

The extensive engineering experience and capabilities within ATS uniquely position us to support our customers. Taking a consultative approach, our engineers can provide you with solutions whether you need information about latest expansion joint technology or advice on improving a piping system design.

K pipe 3D model


American Welding Society
International District Energy Association
ASTM Member