The GRINNELL Figure 577 G-FIRE Rigid Coupling provides a rigid joint by firmly gripping along the circumference of the pipe grooves. The Figure 577 Light Weight Rigid Coupling is a proven dependable method of joining pipe and is an economical alternative to welding, threading or using flanges. It is capable of pressures up to 2,068 kPa (300 psi) depending on pipe size and wall thickness. The Figure 577 Coupling is UL & ULC Listed, FM, VdS and LPCB Approved.
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