Figure 577 - Rigid Coupling
Traditional two-bolt coupling in a wide range of sizes
| Product Type | Rigid Coupling |
| Listings and Approvals | UL and C-UL Listed; FM, VdS, and LPCB Approved |
| Sizes | 1 inch to 12 inch (DN25 to DN300) |
For Use in Fire Protection Systems
The Grinnell G-Fire Figure 577 couplings provide a proven, dependable method of joining pipe and are an economical alternative to welding, threading, or using flanges. The coupling provides a rigid joint by firmly gripping along the full circumference of the pipe grooves.
The Figure 577 is rated at pressures up to 350 psi (24,1 bar), depending on pipe size and wall thickness when used in fire protection service applications. Also available with tri-seal Grade E EPDM gasket for dry-pipe fire protection systems, vacuum systems, and freezer applications.
Features
- Available sizes: 1" (DN25) through 12" (DN300)
- A proven dependable method of joining pipe and an economical alternative to welding, threading, or using flanges
- It is capable of pressures up to 350 psi (24, 1 bar) depending on pipe size and wall thickness when used in fire protection services
- Also available with tri-seal Grade "E" EPDM gasket for dry pipe fire protection systems, vacuum systems, and freezer applications
- Provides a rigid joint by firmly gripping along the full circumference of the pipe grooves
- UL and C-UL Listed; FM, VdS, & LPCB Approved
- Standard Grade "A" EPDMA pre-lubricated gasket, -30°F to 150°F (-34°C to 66°C)
Benefits
Trusted Solutions
Grinnell G-Fire fittings, couplings, and accessories have been trusted for generations to provide dependable solutions.
Broad Portfolio
Grinnell G-Fire products are part of the broad Johnson Controls fire suppression product offering, including Tyco® fire sprinklers and valves.
Industry-Leading Warranty
Johnson Controls stands behind its products with a unique warranty. See our Terms and Conditions for details.
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