Non-Interrupt Service Transfer Tee


Non-Interrupt Service Transfer (NIST) PermaLock Mechanical Tapping Tees allow for fast and easy transfer of 1" CTS and 1-1/4" CTS polyethylene gas service lines to a replacement main line without interrupting the flow of gas. The connection from the existing services line to the new replacement main is made simple and easy by the use of PermaLock tapping tees with Permasert coupling outlets.

This new process eliminates any temporary interruption to a customer’s gas service, as well as the need to gain entry into the home for relights, thereby reducing operating costs and increasing customer satisfaction.


Documents and Downloads


Non-Interrupt Service Transfer (NIST)Data sheetEnglish653.34 KBDownload