Johnson Controls’ brand-new one-bolt coupling

The GRINNELL G-Fire One-Bolt Coupling by Johnson Controls features a single-bolt design that eliminates alternate tightening and helps contractors perform quicker, more consistent installations with dependable product performance, the company notes. The one-bolt coupling is pre-lubricated and pre-assembled for fast and easy push-on installation in both vertical and horizontal applications. It features 360-degree contact for an exceptionally rigid joint and a low-profile spine allows installation in tighter spaces. The coupling’s center-stop gasket ensures proper positioning on the pipe. The one-bolt coupling is UL/ULc listed and FM approved, with a pressure rating up to 365 psi. It is available in 2” to 8” sizes (DN50 to DN200) and both painted and galvanized finishes.

Image courtesy of GRINNELL


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