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Figure 579A - One-Bolt Coupling
One-bolt design makes joining pipe faster and easier than ever before
| Product Type | Rigid Coupling |
| Listings and Approvals | UL and C-UL Listed; FM, VdS, and LPCB Approved |
| Sizes | 1 1/4 inch to 8 inch (DN32 to DN200) |
Ready for Easy Install
The Grinnell G-Fire Figure 579A is ready to install right out of the box, arriving pre-assembled and pre-lubricated. The coupling features a unique, three-piece housing, a center-stop gasket, and just one bolt to tighten. Gaskets for the 579A are customized to specific coupling sizes intended for easy and consistent installation. The smallest sizes, including 1-1/4” (DN32) and 1-1/2” (DN40), utilize a powder-lubricated gasket; the mid-range and large sizes, including 2-inch (DN50) through 8-inch (DN200), utilize a self-lubricating gasket.
Features
- One-bolt design means no alternate tightening required
- Center-stop gasket customized to the coupling sizes helps ensure proper positioning
- Low-profile spine allows installation in tighter spaces
- Range includes metric and imperial sizes
- Pre-assembled for fast and easy push-on installation
- 360-degree pipe contact ensures a truly rigid joint
- UL and C-UL Listed; FM, VdS, and LPCB Approved
- 6-8” sizes available only in North America
Benefits
Save Time
The G-Fire One-Bolt coupling eliminates alternate tightening and makes joining grooved pipe faster than ever before.
Ready for Install
Arriving pre-assembled with a pre-lubricated gasket, the One-Bolt coupling is prepped and ready right out of the box.
Trusted Portfolio
Grinnell G-Fire fittings, couplings and accessories have been trusted for generations to provide dependable solutions.
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